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This Android Java Program demonstrates an Intent Filter in Andorid.

Here is source code of the Program demonstrate an Intent Filter in Android. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.

Main Activity

 
package com.example.intentfilter;
 
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
 
import android.net.Uri;
import android.os.Bundle;
import android.os.StrictMode;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
 
@SuppressLint("NewApi")
public class MainActivity extends Activity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button b1 = (Button)findViewById(R.id.button1);
        b1.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(Intent.ACTION_DIAL,
                        Uri.parse("tel:(+0129)123456789"));
                startActivity(intent);
            }
        });
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}

Activity_Main.xml

 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >
 
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="174dp"
        android:text="Launch" />
 
</RelativeLayout>

AndroidManifest

 
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.intentfilter"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
 
    <uses-permission android:name="android.permission.INTERNET" >
    </uses-permission>
 
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.intentfilter.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter android:priority="100" >
                <action android:name="android.intent.action.DIAL" />
 
                <category android:name="android.intent.category.DEFAULT" />
 
                <data android:scheme="tel" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>

Java Android Program to Demonstrate Intent Filter