Android Content Provider

Jul 29, 2015 By: Dr. Droid Android Content Provider, Android Database Comment: 1

A content provider component supplies data from one application to others on request. Such requests are handled by the methods of the ContentResolver class. A content provider can use different ways to store its data and the data can be stored in a database, in files, or even over a network.

Content providers let you centralize content in one place and have many different applications access it as needed. A content provider behaves very much like a database where you can query it, edit its content, as well as add or delete content using insert(), update(), delete(), and query() methods. In most cases this data is stored in an SQlite database.

A content provider is implemented as a subclass of ContentProvider class and must implement a standard set of APIs that enable other applications to perform transactions.

public class Custom_ContentProvider extends  ContentProvider {

}

public class Custom_ContentProvider extends ContentProvider {

}

Content URIs

To query a content provider, you specify the query string in the form of a URI which has following format:

<prefix>://<authority>/<data_type>/<id>

1	<prefix>://<authority>/<data_type>/<id>

Here is the detail of various parts of the URI –

Part	Description
prefix	This is always set to content://
authority	This specifies the name of the content provider, for example contacts, browser etc. For third-party content providers, this could be the fully qualified name, such as com.androhub.statusprovider
data_type	This indicates the type of data that this particular provider provides. For example, if you are getting all the contacts from the Contacts content provider, then the data path would be people and URI would look like this content://contacts/people
id	This specifies the specific record requested. For example, if you are looking for contact number 5 in the Contacts content provider then URI would look like this content://contacts/people/5.

Create Content Provider

This involves number of simple steps to create your own content provider.

First of all you need to create a Content Provider class that extends the ContentProvider base class.
Second, you need to define your content provider URI address which will be used to access the content.
Next you will need to create your own database to keep the content. Usually, Android uses SQLite database and framework needs to override onCreate() method which will use SQLite Open Helper method to create or open the provider’s database. When your application is launched, the onCreate() handler of each of its Content Providers is called on the main application thread.
Next you will have to implement Content Provider queries to perform different database specific operations.
Finally register your Content Provider in your activity file using <provider> tag.

Here is the list of methods which you need to override in Content Provider class to have your Content Provider working:

onCreate() – This method is called when the provider is started.
query() – This method receives a request from a client. The result is returned as a Cursor object.
insert() – This method inserts a new record into the content provider.
delete() – This method deletes an existing record from the content provider.
update() – This method updates an existing record from the content provider.
getType() – This method returns the MIME type of the data at the given URI.

In last tutorial we had covered the topic how to fetch the contact details from phone contacts using content provider i.e. inbuilt content provider. In this tutorial we are going to create our custom content provider.

Example

In this tutorial, we are going to learn how to create custom content provider and how to fetch the data from this content provider from another app.

Video Demo

Custom Content Provider Example

1. Create a new project in Eclipse by navigating to File ⇒ New Android ⇒ Application Project and fill required details. By default my activity is MainActivity.java.

2. Open res ⇒ values ⇒ strings.xml and add below string values. This are some strings that i am going to use in this tutorial.

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">ContentProvider Example</string>
    <string name="hello_world">Hello world!</string>
    <string name="menu_settings">Settings</string>
    <string name="name">Enter Name</string>
    <string  name="email">Enter email id</string>
    <string name="contact">Enter conctact number</string>
    <string name="add">Add Data</string>
    <string name="save_data">Save Data using Content Provider</string>
    <string name="click">Click on Button to Show all Saved Data</string>
    <string name="show">Show Data</string>

</resources>

<?xml version="1.0" encoding="utf-8"?>

<string name="app_name">ContentProvider Example</string>

<string name="hello_world">Hello world!</string>

<string name="menu_settings">Settings</string>

<string name="name">Enter Name</string>

<string name="email">Enter email id</string>

<string name="contact">Enter conctact number</string>

<string name="save_data">Save Data using Content Provider</string>

<string name="click">Click on Button to Show all Saved Data</string>

</resources>

3. Now, create a new java class naming Custom_ContentProvider.java extending ContentProvider. In this java class we put all queries like insert, update, delete and query. We also created a sqlite database to store the data.

If you are unaware of sqlite database you can check the tutorial here.

package com.contentprovider_demo;

import java.util.HashMap;

import android.content.ContentProvider;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.net.Uri;

public class Custom_ContentProvider extends ContentProvider {
	static final String PROVIDER_NAME = "com.contentprovider_demo.Custom_ContentProvider";// Provider
																							// name
	static final String URL = "content://" + PROVIDER_NAME + "/androhub";// Provider
																			// url
	static final Uri CONTENT_URI = Uri.parse(URL);// Contnet Uri in URI format

	// All fields of database
	static final String id = "id";
	static final String name = "name";
	static final String email = "email";
	static final String number = "number";

	// Uri code
	static final int uriCode = 1;
	static final UriMatcher uriMatcher;
	private static HashMap<String, String> values;
	static {

		// Match the uri code to provider name
		uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
		uriMatcher.addURI(PROVIDER_NAME, "androhub", uriCode);
		uriMatcher.addURI(PROVIDER_NAME, "androhub/*", uriCode);
	}

	// detele uri method
	@Override
	public int delete(Uri uri, String selection, String[] selectionArgs) {
		int count = 0;// Count to tell how many rows deleted
		switch (uriMatcher.match(uri)) {
		case uriCode:
			count = db.delete(TABLE_NAME, selection, selectionArgs);
			break;
		default:
			count = 0;
			throw new IllegalArgumentException("Unknown URI " + uri);
		}
		getContext().getContentResolver().notifyChange(uri, null);
		return count;
	}

	// return type of content provider
	@Override
	public String getType(Uri uri) {
		switch (uriMatcher.match(uri)) {
		case uriCode:
			return "vnd.android.cursor.dir/androhub";

		default:
			throw new IllegalArgumentException("Unsupported URI: " + uri);
		}
	}

	// Insert method
	@Override
	public Uri insert(Uri uri, ContentValues values) {
		long rowID = db.insert(TABLE_NAME, "", values);// Insert data into
														// database
		// If row id is greater than 0 then notify content provider
		if (rowID > 0) {
			Uri _uri = ContentUris.withAppendedId(CONTENT_URI, rowID);
			getContext().getContentResolver().notifyChange(_uri, null);
			return _uri;
		}
		throw new SQLException("Failed to add a record into " + uri);
	}

	@Override
	public boolean onCreate() {
		Context context = getContext();
		DatabaseHelper dbHelper = new DatabaseHelper(context);
		db = dbHelper.getWritableDatabase();
		if (db != null) {
			return true;
		}
		return false;
	}

	// Read all data method
	@Override
	public Cursor query(Uri uri, String[] projection, String selection,
			String[] selectionArgs, String sortOrder) {
		SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
		qb.setTables(TABLE_NAME);

		switch (uriMatcher.match(uri)) {
		case uriCode:
			qb.setProjectionMap(values);
			break;
		default:
			throw new IllegalArgumentException("Unknown URI " + uri);
		}
		if (sortOrder == null || sortOrder == "") {
			sortOrder = name;
		}
		Cursor c = qb.query(db, projection, selection, selectionArgs, null,
				null, sortOrder);
		c.setNotificationUri(getContext().getContentResolver(), uri);
		return c;
	}

	// Update data
	@Override
	public int update(Uri uri, ContentValues values, String selection,
			String[] selectionArgs) {
		int count = 0;// Count to tell number of rows updated
		switch (uriMatcher.match(uri)) {
		case uriCode:
			count = db.update(TABLE_NAME, values, selection, selectionArgs);
			break;
		default:
			count = 0;
			throw new IllegalArgumentException("Unknown URI " + uri);
		}
		getContext().getContentResolver().notifyChange(uri, null);
		return count;
	}

	/** SqlLite Database **/
	private SQLiteDatabase db;
	static final String DATABASE_NAME = "ContentProvider_Database";// Database
																	// name
	static final String TABLE_NAME = "User_Details";// Table Name
	static final int DATABASE_VERSION = 1;// Database Version
	static final String CREATE_DB_TABLE = " CREATE TABLE " + TABLE_NAME
			+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, " + name
			+ " TEXT NOT NULL, " + email + " TEXT NOT NULL, " + number
			+ " TEXT NOT NULL" + " );"; // Create table query

	private static class DatabaseHelper extends SQLiteOpenHelper {
		DatabaseHelper(Context context) {
			super(context, DATABASE_NAME, null, DATABASE_VERSION);
		}

		@Override
		public void onCreate(SQLiteDatabase db) {
			db.execSQL(CREATE_DB_TABLE);// Create table
		}

		// On database version upgrade create new table
		@Override
		public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
			db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
			onCreate(db);
		}
	}
}

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package com.contentprovider_demo;

import java.util.HashMap;

import android.content.ContentProvider;

import android.content.ContentUris;

import android.content.ContentValues;

import android.content.Context;

import android.content.UriMatcher;

import android.database.Cursor;

import android.database.SQLException;

import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteOpenHelper;

import android.database.sqlite.SQLiteQueryBuilder;

import android.net.Uri;

public class Custom_ContentProvider extends ContentProvider {

static final String PROVIDER_NAME = "com.contentprovider_demo.Custom_ContentProvider";// Provider

// name

static final String URL = "content://" + PROVIDER_NAME + "/androhub";// Provider

// url

static final Uri CONTENT_URI = Uri.parse(URL);// Contnet Uri in URI format

// All fields of database

static final String id = "id";

static final String name = "name";

static final String email = "email";

static final String number = "number";

// Uri code

static final int uriCode = 1;

static final UriMatcher uriMatcher;

private static HashMap<String, String> values;

static {

// Match the uri code to provider name

uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);

uriMatcher.addURI(PROVIDER_NAME, "androhub", uriCode);

uriMatcher.addURI(PROVIDER_NAME, "androhub/*", uriCode);

}

// detele uri method

@Override

public int delete(Uri uri, String selection, String[] selectionArgs) {

int count = 0;// Count to tell how many rows deleted

switch (uriMatcher.match(uri)) {

case uriCode:

count = db.delete(TABLE_NAME, selection, selectionArgs);

break;

default:

count = 0;

throw new IllegalArgumentException("Unknown URI " + uri);

}

getContext().getContentResolver().notifyChange(uri, null);

return count;

}

// return type of content provider

@Override

public String getType(Uri uri) {

switch (uriMatcher.match(uri)) {

case uriCode:

return "vnd.android.cursor.dir/androhub";

default:

throw new IllegalArgumentException("Unsupported URI: " + uri);

}

// Insert method

@Override

public Uri insert(Uri uri, ContentValues values) {

long rowID = db.insert(TABLE_NAME, "", values);// Insert data into

// database

// If row id is greater than 0 then notify content provider

if (rowID > 0) {

Uri _uri = ContentUris.withAppendedId(CONTENT_URI, rowID);

getContext().getContentResolver().notifyChange(_uri, null);

return _uri;

}

throw new SQLException("Failed to add a record into " + uri);

}

@Override

public boolean onCreate() {

Context context = getContext();

DatabaseHelper dbHelper = new DatabaseHelper(context);

db = dbHelper.getWritableDatabase();

if (db != null) {

return true;

}

return false;

}

// Read all data method

@Override

public Cursor query(Uri uri, String[] projection, String selection,

String[] selectionArgs, String sortOrder) {

SQLiteQueryBuilder qb = new SQLiteQueryBuilder();

qb.setTables(TABLE_NAME);

switch (uriMatcher.match(uri)) {

case uriCode:

qb.setProjectionMap(values);

break;

default:

throw new IllegalArgumentException("Unknown URI " + uri);

}

if (sortOrder == null || sortOrder == "") {

sortOrder = name;

}

Cursor c = qb.query(db, projection, selection, selectionArgs, null,

null, sortOrder);

c.setNotificationUri(getContext().getContentResolver(), uri);

return c;

}

// Update data

@Override

public int update(Uri uri, ContentValues values, String selection,

String[] selectionArgs) {

int count = 0;// Count to tell number of rows updated

switch (uriMatcher.match(uri)) {

case uriCode:

count = db.update(TABLE_NAME, values, selection, selectionArgs);

break;

default:

count = 0;

throw new IllegalArgumentException("Unknown URI " + uri);

}

getContext().getContentResolver().notifyChange(uri, null);

return count;

}

/** SqlLite Database **/

private SQLiteDatabase db;

static final String DATABASE_NAME = "ContentProvider_Database";// Database

// name

static final String TABLE_NAME = "User_Details";// Table Name

static final int DATABASE_VERSION = 1;// Database Version

static final String CREATE_DB_TABLE = " CREATE TABLE " + TABLE_NAME

+ " (id INTEGER PRIMARY KEY AUTOINCREMENT, " + name

+ " TEXT NOT NULL, " + email + " TEXT NOT NULL, " + number

+ " TEXT NOT NULL" + " );"; // Create table query

private static class DatabaseHelper extends SQLiteOpenHelper {

DatabaseHelper(Context context) {

super(context, DATABASE_NAME, null, DATABASE_VERSION);

}

@Override

public void onCreate(SQLiteDatabase db) {

db.execSQL(CREATE_DB_TABLE);// Create table

}

// On database version upgrade create new table

@Override

public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);

onCreate(db);

}

4. After creating custom content provider we have to put it into manifest file inside provider tag.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.contentprovider_demo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="22" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.contentprovider_demo.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <provider
            android:name="com.contentprovider_demo.Custom_ContentProvider"
            android:authorities="com.contentprovider_demo.Custom_ContentProvider"
            android:exported="true"
            android:multiprocess="true" >
        </provider>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.contentprovider_demo"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="22" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="com.contentprovider_demo.MainActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

<provider

android:name="com.contentprovider_demo.Custom_ContentProvider"

android:authorities="com.contentprovider_demo.Custom_ContentProvider"

android:exported="true"

android:multiprocess="true" >

</provider>

</application>

</manifest>

5. Now create a basic xml layout naming activity_main.xml. In this layout i put some edittext and two buttons.

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffff"
    android:fillViewport="true" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="5dp" >

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:padding="10dp"
            android:text="@string/save_data"
            android:textColor="#F44336"
            android:textSize="20sp"
            android:textStyle="bold" />

        <EditText
            android:id="@+id/txtName"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:hint="@string/name"
            android:inputType="textCapWords"
            android:padding="10dp" />

        <EditText
            android:id="@+id/txtEmail"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:hint="@string/email"
            android:inputType="textEmailAddress"
            android:padding="10dp" />

        <EditText
            android:id="@+id/txtContact"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:hint="@string/contact"
            android:inputType="number"
            android:padding="10dp" />

        <Button
            android:id="@+id/btnAdd"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:padding="5dp"
            android:text="@string/add" />

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:padding="10dp"
            android:text="@string/click"
            android:textColor="#F44336"
            android:textSize="20sp"
            android:textStyle="bold" />

        <Button
            android:id="@+id/btnShow"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:padding="5dp"
            android:text="@string/show" />

        <TextView
            android:id="@+id/result"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:padding="10dp"
            android:textColor="#000000"
            android:textSize="15sp" />
    </LinearLayout>

</ScrollView>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:background="#ffffff"

android:fillViewport="true" >

<LinearLayout

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:gravity="center"

android:orientation="vertical"

android:padding="5dp" >

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:gravity="center"

android:padding="10dp"

android:text="@string/save_data"

android:textColor="#F44336"

android:textSize="20sp"

android:textStyle="bold" />

<EditText

android:id="@+id/txtName"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:hint="@string/name"

android:inputType="textCapWords"

android:padding="10dp" />

<EditText

android:id="@+id/txtEmail"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:hint="@string/email"

android:inputType="textEmailAddress"

android:padding="10dp" />

<EditText

android:id="@+id/txtContact"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:hint="@string/contact"

android:inputType="number"

android:padding="10dp" />

<Button

android:id="@+id/btnAdd"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:padding="5dp"

android:text="@string/add" />

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:gravity="center"

android:padding="10dp"

android:text="@string/click"

android:textColor="#F44336"

android:textSize="20sp"

android:textStyle="bold" />

<Button

android:id="@+id/btnShow"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:padding="5dp"

android:text="@string/show" />

<TextView

android:id="@+id/result"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:padding="10dp"

android:textColor="#000000"

android:textSize="15sp" />

</LinearLayout>

</ScrollView>

6. Finally come to MainActivity.java and add the following code to it. In this java class we have two onClickListener buttons :

Add Button – This button will add the EditText values into Content Provider database using Content Values.
Show Button – This button fetch the data from content provider in cursor and check if cursor is not null then show data else show empty data.

package com.contentprovider_demo;

import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
	private static EditText name, email, number;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		name = (EditText) findViewById(R.id.txtName);
		email = (EditText) findViewById(R.id.txtEmail);
		number = (EditText) findViewById(R.id.txtContact);

		findViewById(R.id.btnAdd).setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View view) {
				// Get all text fields into string
				String getName = name.getText().toString();
				String getEmail = email.getText().toString();
				String getNumber = number.getText().toString();

				// Check if all fields are not null
				if (!getName.equals("") && getName.length() != 0
						&& !getEmail.equals("") && getEmail.length() != 0
						&& !getNumber.equals("") && getNumber.length() != 0) {

					onClickAddData(getName, getEmail, getNumber);// Add data

					// empty all fields
					name.setText("");
					email.setText("");
					number.setText("");
				}
				// else show toast
				else
					Toast.makeText(MainActivity.this,
							"Please fill all details.", Toast.LENGTH_SHORT)
							.show();

			}
		});
		findViewById(R.id.btnShow).setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View view) {
				TextView resultView = (TextView) findViewById(R.id.result);
				Cursor cursor = getContentResolver().query(
						Custom_ContentProvider.CONTENT_URI, null, null, null,
						null);// Get cursor

				// Check if it is null or not
				if (cursor != null && cursor.moveToFirst()) {

					StringBuilder result = new StringBuilder();
					// Loop to all items
					while (!cursor.isAfterLast()) {
						// Add data to string builder
						result.append("Id - "
								+ cursor.getString(cursor.getColumnIndex("id"))
								+ "nName - "
								+ cursor.getString(cursor
										.getColumnIndex("name"))
								+ "nEmail - "
								+ cursor.getString(cursor
										.getColumnIndex("email"))
								+ "nContact Number - "
								+ cursor.getString(cursor
										.getColumnIndex("number")) + "nn");
						cursor.moveToNext();
					}
					resultView.setText(result);// finally set string builder to
												// textview
				} else {

					// if cursor is null then set data empty
					resultView.setText("Empty data!!");

				}
			}
		});
	}

	// Add data method
	private void onClickAddData(String name, String email, String number) {
		ContentValues values = new ContentValues();// Content values to add data
		values.put(Custom_ContentProvider.name, name);
		values.put(Custom_ContentProvider.email, email);
		values.put(Custom_ContentProvider.number, number);
		Uri uri = getContentResolver().insert(
				Custom_ContentProvider.CONTENT_URI, values);// Insert data to
															// content provider
		Toast.makeText(getBaseContext(), "New Data Inserted.",
				Toast.LENGTH_LONG).show();
	}
}

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package com.contentprovider_demo;

import android.content.ContentValues;

import android.database.Cursor;

import android.net.Uri;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

private static EditText name, email, number;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

name = (EditText) findViewById(R.id.txtName);

email = (EditText) findViewById(R.id.txtEmail);

number = (EditText) findViewById(R.id.txtContact);

findViewById(R.id.btnAdd).setOnClickListener(new OnClickListener() {

@Override

public void onClick(View view) {

// Get all text fields into string

String getName = name.getText().toString();

String getEmail = email.getText().toString();

String getNumber = number.getText().toString();

// Check if all fields are not null

if (!getName.equals("") && getName.length() != 0

&& !getEmail.equals("") && getEmail.length() != 0

&& !getNumber.equals("") && getNumber.length() != 0) {

onClickAddData(getName, getEmail, getNumber);// Add data

// empty all fields

name.setText("");

email.setText("");

number.setText("");

}

// else show toast

else

Toast.makeText(MainActivity.this,

"Please fill all details.", Toast.LENGTH_SHORT)

.show();

}

});

findViewById(R.id.btnShow).setOnClickListener(new OnClickListener() {

@Override

public void onClick(View view) {

TextView resultView = (TextView) findViewById(R.id.result);

Cursor cursor = getContentResolver().query(

Custom_ContentProvider.CONTENT_URI, null, null, null,

null);// Get cursor

// Check if it is null or not

if (cursor != null && cursor.moveToFirst()) {

StringBuilder result = new StringBuilder();

// Loop to all items

while (!cursor.isAfterLast()) {

// Add data to string builder

result.append("Id - "

+ cursor.getString(cursor.getColumnIndex("id"))

+ "nName - "

+ cursor.getString(cursor

.getColumnIndex("name"))

+ "nEmail - "

+ cursor.getString(cursor

.getColumnIndex("email"))

+ "nContact Number - "

+ cursor.getString(cursor

.getColumnIndex("number")) + "nn");

cursor.moveToNext();

}

resultView.setText(result);// finally set string builder to

// textview

} else {

// if cursor is null then set data empty

resultView.setText("Empty data!!");

}

});

}

// Add data method

private void onClickAddData(String name, String email, String number) {

ContentValues values = new ContentValues();// Content values to add data

values.put(Custom_ContentProvider.name, name);

values.put(Custom_ContentProvider.email, email);

values.put(Custom_ContentProvider.number, number);

Uri uri = getContentResolver().insert(

Custom_ContentProvider.CONTENT_URI, values);// Insert data to

// content provider

Toast.makeText(getBaseContext(), "New Data Inserted.",

Toast.LENGTH_LONG).show();

}

7. Finally you are done with custom content provider example.

Use of Custom Content Proivder Example

1. Create a new project in Eclipse by navigating to File ⇒ New Android ⇒ Application Project and fill required details. By default my activity is MainActivity.java.

2. Open res ⇒ values ⇒ strings.xml and add below string values. This are some strings that i am going to use in this tutorial.

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">ContentProviderUser Example</string>
    <string name="hello_world">Hello world!</string>
    <string name="menu_settings">Settings</string>
    <string name="show_data">Show Data</string>
    <string name="fetch">Fetch Data from Content Provider</string>
    <string name="id">Enter Id</string>
    <string name="update">Update</string>
    <string name="delete">Delete</string>
    <string name="update_delete">Enter Id to Update/Delete Data</string>
    <string name="insert">Insert</string>
    <string name="insert_data">Click to Insert New Data</string>

</resources>

<?xml version="1.0" encoding="utf-8"?>

<string name="app_name">ContentProviderUser Example</string>

<string name="hello_world">Hello world!</string>

<string name="menu_settings">Settings</string>

<string name="fetch">Fetch Data from Content Provider</string>

<string name="id">Enter Id</string>

<string name="update">Update</string>

<string name="delete">Delete</string>

<string name="update_delete">Enter Id to Update/Delete Data</string>

<string name="insert">Insert</string>

<string name="insert_data">Click to Insert New Data</string>

</resources>

3. Create a xml layout naming activity_main.xml. This layout contains some buttons for showing data, inserting new data, update data and delete data.

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffff"
    android:fillViewport="true" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="5dp" >

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:padding="10dp"
            android:text="@string/fetch"
            android:textColor="#F44336"
            android:textSize="20sp"
            android:textStyle="bold" />

        <Button
            android:id="@+id/btnRetrieve"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:padding="5dp"
            android:text="@string/show_data" />

        <TextView
            android:id="@+id/result"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:clickable="false"
            android:padding="5dp"
            android:textColor="#000000"
            android:textSize="15sp" />

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:padding="10dp"
            android:text="@string/update_delete"
            android:textColor="#F44336"
            android:textSize="20sp"
            android:textStyle="bold" />

        <EditText
            android:id="@+id/id"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:focusableInTouchMode="true"
            android:hint="@string/id"
            android:inputType="number" />

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/btnUpdate"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_margin="5dp"
                android:layout_weight="1"
                android:padding="5dp"
                android:text="@string/update" />

            <Button
                android:id="@+id/btnDelete"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_margin="5dp"
                android:layout_weight="1"
                android:padding="5dp"
                android:text="@string/delete" />
        </LinearLayout>

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:gravity="center"
            android:padding="10dp"
            android:text="@string/insert_data"
            android:textColor="#F44336"
            android:textSize="20sp"
            android:textStyle="bold" />

        <Button
            android:id="@+id/btnInsert"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_margin="5dp"
            android:padding="5dp"
            android:text="@string/insert" />
    </LinearLayout>

</ScrollView>

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<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:background="#ffffff"

android:fillViewport="true" >

<LinearLayout

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:orientation="vertical"

android:padding="5dp" >

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:gravity="center"

android:padding="10dp"

android:text="@string/fetch"

android:textColor="#F44336"

android:textSize="20sp"

android:textStyle="bold" />

<Button

android:id="@+id/btnRetrieve"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:padding="5dp"

android:text="@string/show_data" />

<TextView

android:id="@+id/result"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:clickable="false"

android:padding="5dp"

android:textColor="#000000"

android:textSize="15sp" />

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:gravity="center"

android:padding="10dp"

android:text="@string/update_delete"

android:textColor="#F44336"

android:textSize="20sp"

android:textStyle="bold" />

<EditText

android:id="@+id/id"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:focusableInTouchMode="true"

android:hint="@string/id"

android:inputType="number" />

<LinearLayout

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:orientation="horizontal" >

<Button

android:id="@+id/btnUpdate"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:layout_weight="1"

android:padding="5dp"

android:text="@string/update" />

<Button

android:id="@+id/btnDelete"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:layout_weight="1"

android:padding="5dp"

android:text="@string/delete" />

</LinearLayout>

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:gravity="center"

android:padding="10dp"

android:text="@string/insert_data"

android:textColor="#F44336"

android:textSize="20sp"

android:textStyle="bold" />

<Button

android:id="@+id/btnInsert"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:padding="5dp"

android:text="@string/insert" />

</LinearLayout>

</ScrollView>

4. Now, create a new class naming Random_Datas.java that contains three string array for adding new data inside content provider.

package com.contentprovider_user_demo;

public class Random_Datas {

	/** Strings array to insert/update data in Content Provider **/
	public static final String[] Name = { "Androhub", "Andrew", "Philip",
			"Sachin", "New User", "Guest" };
	public static final String[] Email = { "Androhub@gmail.com",
			"Andrew@gmail.com", "Philip@gmail.com", "Sachin@gmail.com",
			"New User@gmail.com", "Guest@gmail.com" };
	public static final String[] Number = { "9008091221", "9977112561",
			"908456124", "8904561245", "8953234903", "7845362793" };
}

package com.contentprovider_user_demo;

public class Random_Datas {

/** Strings array to insert/update data in Content Provider **/

public static final String[] Name = { "Androhub", "Andrew", "Philip",

"Sachin", "New User", "Guest" };

public static final String[] Email = { "[email protected]",

"[email protected]", "[email protected]", "[email protected]",

"New [email protected]", "[email protected]" };

public static final String[] Number = { "9008091221", "9977112561",

"908456124", "8904561245", "8953234903", "7845362793" };

}

5. Finally come to your MainActivity.java and follow some steps while fetching data from custom provider app.

We have to use the URI that we have created in our Custom Content Provider.

private static final String uri = "content://com.contentprovider_demo.Custom_ContentProvider/androhub";

1	private static final String uri = "content://com.contentprovider_demo.Custom_ContentProvider/androhub";

Before fetching data, inserting data, updating data or doing anything with content provider first check if content provider app is installed in your device and containing some data to perform task else exception will occurs.
On Content Provider data update and delete i am using id to do this task you can use any field like name, email, etc. Make sure before updating first check if particular id is present in database or not.

Final source code of MainActivity.java.

package com.contentprovider_user_demo;

import java.util.Random;

import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements
		LoaderManager.LoaderCallbacks<Cursor>, OnClickListener {
	private static TextView resultView;
	private static EditText id;
	private static Button retrieve, update, delete, insert;

	private static CursorLoader cursorLoader;

	private static final String uri = "content://com.contentprovider_demo.Custom_ContentProvider/androhub";// Content
																											// URI

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		// Find Ids
		resultView = (TextView) findViewById(R.id.result);
		id = (EditText) findViewById(R.id.id);
		retrieve = (Button) findViewById(R.id.btnRetrieve);
		update = (Button) findViewById(R.id.btnUpdate);
		delete = (Button) findViewById(R.id.btnDelete);
		insert = (Button) findViewById(R.id.btnInsert);

		// Implement click listener
		retrieve.setOnClickListener(this);
		update.setOnClickListener(this);
		delete.setOnClickListener(this);
		insert.setOnClickListener(this);

	}

	// On click call representative methods
	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.btnRetrieve:
			onClickDisplayData();// Fetch data
			break;
		case R.id.btnUpdate:

			// Update data according to Id
			String getId = id.getText().toString();
			if (!getId.equals("") && getId.length() != 0)
				updateData(new String[] { getId });
			else
				Toast.makeText(MainActivity.this, "Id is empty.",
						Toast.LENGTH_SHORT).show();

			break;

		case R.id.btnDelete:

			// Delete data according to Id
			String getId_ = id.getText().toString();
			if (!getId_.equals("") && getId_.length() != 0)
				deleteData(new String[] { getId_ });
			else
				Toast.makeText(MainActivity.this, "Id is empty.",
						Toast.LENGTH_SHORT).show();

			break;
		case R.id.btnInsert:

			// Insert data
			insertData();
			break;

		}

	}

	private void onClickDisplayData() {
		// Initate loader manager
		getSupportLoaderManager().initLoader(1, null, this);
	}

	@Override
	public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
		try {
			cursorLoader = new CursorLoader(this, Uri.parse(uri), null, null,
					null, null);// Get cursor loader from URI
		} catch (NullPointerException e) {
			// if exception occurs toast occurs
			Toast.makeText(
					MainActivity.this,
					"There is no app found corresponding to your content provider.",
					Toast.LENGTH_LONG).show();
		} catch (Exception e) {
			Toast.makeText(MainActivity.this,
					"Error in fetching data. Try again.", Toast.LENGTH_SHORT)
					.show();
			e.printStackTrace();
		}
		return cursorLoader;
	}

	@Override
	public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {

		// First check if cursor is not null
		if (cursor != null && cursor.moveToFirst()) {

			StringBuilder result = new StringBuilder();

			// Now loop to all items and append it to string builder
			while (!cursor.isAfterLast()) {
				result.append("Id - "
						+ cursor.getString(cursor.getColumnIndex("id"))
						+ "nName - "
						+ cursor.getString(cursor.getColumnIndex("name"))
						+ "nEmail - "
						+ cursor.getString(cursor.getColumnIndex("email"))
						+ "nContact Number - "
						+ cursor.getString(cursor.getColumnIndex("number"))
						+ "nn");
				cursor.moveToNext();
			}
			resultView.setText(result);// Finally set string builder to textview
		} else {
			// If cursor is null then display toast and set empty data.
			resultView.setText("Empty data!!");
			Toast.makeText(
					MainActivity.this,
					"May be there is no app corresponding to your provider or there is null data.",
					Toast.LENGTH_LONG).show();
		}

	}

	@Override
	public void onLoaderReset(Loader<Cursor> arg0) {

	}

	// Random int value generator method between 0-5
	private int RandomInt() {
		Random random = new Random();
		int randomValue = random.nextInt(5);
		return randomValue;
	}

	// Update data method
	private void updateData(String[] id) {
		Cursor cursor = getContentResolver().query(Uri.parse(uri), null, null,
				null, null);// Get cursor from Uri

		// If cursor is not null then update data else show toast
		if (cursor != null) {
			int randomValue = RandomInt();// Get random integer
			ContentValues values = new ContentValues();// Content values to
														// insert data
			values.put("name", Random_Datas.Name[randomValue]);// add data from
																// RandomDatas
																// class
			values.put("email", Random_Datas.Email[randomValue]);
			values.put("number", Random_Datas.Number[randomValue]);
			int count = getContentResolver().update(Uri.parse(uri), values,
					"id = ?", id);// now update provider using ID

			// If count is not 0 then row is updated else no row is updated
			if (count != 0)
				Toast.makeText(MainActivity.this, "Row updated",
						Toast.LENGTH_LONG).show();
			else
				Toast.makeText(
						MainActivity.this,
						"May be there is no row to update or the id you pass is not present in database.",
						Toast.LENGTH_LONG).show();

		} else {
			Toast.makeText(
					MainActivity.this,
					"May be there is no app corresponding to your provider or there is null data.",
					Toast.LENGTH_LONG).show();
		}

	}

	// Delete data
	private void deleteData(String[] id) {

		// Firstly get the cursor then check if it is null or not
		Cursor cursor = getContentResolver().query(Uri.parse(uri), null, null,
				null, null);
		if (cursor != null) {

			int count = getContentResolver().delete(Uri.parse(uri), "id = ? ",
					id);// Delete row according to id
			if (count != 0)
				Toast.makeText(MainActivity.this, "Row deleted",
						Toast.LENGTH_LONG).show();
			else
				Toast.makeText(
						MainActivity.this,
						"May be there is no row to delete or the id you pass is not present in database.",
						Toast.LENGTH_LONG).show();

		} else {
			Toast.makeText(
					MainActivity.this,
					"May be there is no app corresponding to your provider or there is null data.",
					Toast.LENGTH_LONG).show();
		}

	}

	// Insert random data
	private void insertData() {
		Cursor cursor = getContentResolver().query(Uri.parse(uri), null, null,
				null, null);
		// First check if cursor is null or not
		if (cursor != null) {
			int randomValue = RandomInt();
			ContentValues values = new ContentValues();
			values.put("name", Random_Datas.Name[randomValue]);
			values.put("email", Random_Datas.Email[randomValue]);
			values.put("number", Random_Datas.Number[randomValue]);
			Uri uri_ = getContentResolver().insert(Uri.parse(uri), values);// Now
																			// add
																			// the
																			// content
																			// values
																			// to
																			// content
																			// provider

			Toast.makeText(MainActivity.this, "Data inserted.",
					Toast.LENGTH_LONG).show();
		} else {
			Toast.makeText(MainActivity.this,
					"May be there is no app corresponding to your provider.",
					Toast.LENGTH_LONG).show();
		}

	}

	@Override
	public void onDestroy() {
		super.onDestroy();
	}

}

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package com.contentprovider_user_demo;

import java.util.Random;

import android.content.ContentValues;

import android.database.Cursor;

import android.net.Uri;

import android.os.Bundle;

import android.support.v4.app.LoaderManager;

import android.support.v4.content.CursorLoader;

import android.support.v4.content.Loader;

import android.support.v7.app.AppCompatActivity;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements

LoaderManager.LoaderCallbacks<Cursor>, OnClickListener {

private static TextView resultView;

private static EditText id;

private static Button retrieve, update, delete, insert;

private static CursorLoader cursorLoader;

private static final String uri = "content://com.contentprovider_demo.Custom_ContentProvider/androhub";// Content

// URI

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// Find Ids

resultView = (TextView) findViewById(R.id.result);

id = (EditText) findViewById(R.id.id);

retrieve = (Button) findViewById(R.id.btnRetrieve);

update = (Button) findViewById(R.id.btnUpdate);

delete = (Button) findViewById(R.id.btnDelete);

insert = (Button) findViewById(R.id.btnInsert);

// Implement click listener

retrieve.setOnClickListener(this);

update.setOnClickListener(this);

delete.setOnClickListener(this);

insert.setOnClickListener(this);

}

// On click call representative methods

@Override

public void onClick(View v) {

switch (v.getId()) {

case R.id.btnRetrieve:

onClickDisplayData();// Fetch data

break;

case R.id.btnUpdate:

// Update data according to Id

String getId = id.getText().toString();

if (!getId.equals("") && getId.length() != 0)

updateData(new String[] { getId });

else

Toast.makeText(MainActivity.this, "Id is empty.",

Toast.LENGTH_SHORT).show();

break;

case R.id.btnDelete:

// Delete data according to Id

String getId_ = id.getText().toString();

if (!getId_.equals("") && getId_.length() != 0)

deleteData(new String[] { getId_ });

else

Toast.makeText(MainActivity.this, "Id is empty.",

Toast.LENGTH_SHORT).show();

break;

case R.id.btnInsert:

// Insert data

insertData();

break;

}

private void onClickDisplayData() {

// Initate loader manager

getSupportLoaderManager().initLoader(1, null, this);

}

@Override

public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {

try {

cursorLoader = new CursorLoader(this, Uri.parse(uri), null, null,

null, null);// Get cursor loader from URI

} catch (NullPointerException e) {

// if exception occurs toast occurs

Toast.makeText(

MainActivity.this,

"There is no app found corresponding to your content provider.",

Toast.LENGTH_LONG).show();

} catch (Exception e) {

Toast.makeText(MainActivity.this,

"Error in fetching data. Try again.", Toast.LENGTH_SHORT)

.show();

e.printStackTrace();

}

return cursorLoader;

}

@Override

public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {

// First check if cursor is not null

if (cursor != null && cursor.moveToFirst()) {

StringBuilder result = new StringBuilder();

// Now loop to all items and append it to string builder

while (!cursor.isAfterLast()) {

result.append("Id - "

+ cursor.getString(cursor.getColumnIndex("id"))

+ "nName - "

+ cursor.getString(cursor.getColumnIndex("name"))

+ "nEmail - "

+ cursor.getString(cursor.getColumnIndex("email"))

+ "nContact Number - "

+ cursor.getString(cursor.getColumnIndex("number"))

+ "nn");

cursor.moveToNext();

}

resultView.setText(result);// Finally set string builder to textview

} else {

// If cursor is null then display toast and set empty data.

resultView.setText("Empty data!!");

Toast.makeText(

MainActivity.this,

"May be there is no app corresponding to your provider or there is null data.",

Toast.LENGTH_LONG).show();

}

@Override

public void onLoaderReset(Loader<Cursor> arg0) {

}

// Random int value generator method between 0-5

private int RandomInt() {

Random random = new Random();

int randomValue = random.nextInt(5);

return randomValue;

}

// Update data method

private void updateData(String[] id) {

Cursor cursor = getContentResolver().query(Uri.parse(uri), null, null,

null, null);// Get cursor from Uri

// If cursor is not null then update data else show toast

if (cursor != null) {

int randomValue = RandomInt();// Get random integer

ContentValues values = new ContentValues();// Content values to

// insert data

values.put("name", Random_Datas.Name[randomValue]);// add data from

// RandomDatas

// class

values.put("email", Random_Datas.Email[randomValue]);

values.put("number", Random_Datas.Number[randomValue]);

int count = getContentResolver().update(Uri.parse(uri), values,

"id = ?", id);// now update provider using ID

// If count is not 0 then row is updated else no row is updated

if (count != 0)

Toast.makeText(MainActivity.this, "Row updated",

Toast.LENGTH_LONG).show();

else

Toast.makeText(

MainActivity.this,

"May be there is no row to update or the id you pass is not present in database.",

Toast.LENGTH_LONG).show();

} else {

Toast.makeText(

MainActivity.this,

"May be there is no app corresponding to your provider or there is null data.",

Toast.LENGTH_LONG).show();

}

// Delete data

private void deleteData(String[] id) {

// Firstly get the cursor then check if it is null or not

Cursor cursor = getContentResolver().query(Uri.parse(uri), null, null,

null, null);

if (cursor != null) {

int count = getContentResolver().delete(Uri.parse(uri), "id = ? ",

id);// Delete row according to id

if (count != 0)

Toast.makeText(MainActivity.this, "Row deleted",

Toast.LENGTH_LONG).show();

else

Toast.makeText(

MainActivity.this,

"May be there is no row to delete or the id you pass is not present in database.",

Toast.LENGTH_LONG).show();

} else {

Toast.makeText(

MainActivity.this,

"May be there is no app corresponding to your provider or there is null data.",

Toast.LENGTH_LONG).show();

}

// Insert random data

private void insertData() {

Cursor cursor = getContentResolver().query(Uri.parse(uri), null, null,

null, null);

// First check if cursor is null or not

if (cursor != null) {

int randomValue = RandomInt();

ContentValues values = new ContentValues();

values.put("name", Random_Datas.Name[randomValue]);

values.put("email", Random_Datas.Email[randomValue]);

values.put("number", Random_Datas.Number[randomValue]);

Uri uri_ = getContentResolver().insert(Uri.parse(uri), values);// Now

// add

// the

// content

// values

// to

// content

// provider

Toast.makeText(MainActivity.this, "Data inserted.",

Toast.LENGTH_LONG).show();

} else {

Toast.makeText(MainActivity.this,

"May be there is no app corresponding to your provider.",

Toast.LENGTH_LONG).show();

}

@Override

public void onDestroy() {

super.onDestroy();

}

6. Finally you are done with this example also.

Now you can use both example and run the app and you will get the output as shown in the video.

Thanks.