Tuesday, 6 March 2018

BROADCAST LESSON I

BROADCAST LESSON

FIRST CLASS
package com.example.broadcastlesson;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class FirstActivity extends ActionBarActivity {
Button BroadC;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
       
        BroadC = (Button)findViewById(R.id.bnBroadcast);
       
        BroadC.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub

Intent toBroadCast = new Intent ();
toBroadCast.setAction("com.example.broadcastlesson.SAMPLE_BROADCAST");
sendBroadcast(toBroadCast);

}
});
       
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.first, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

SECOND CLASS
package com.example.broadcastlesson;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

public class ToReceive extends BroadcastReceiver {

/**
* @param args
*/
//public static void main(String[] args) {
// TODO Auto-generated method stub

//}

@Override
public void onReceive(Context context, Intent toBroadCast) {
// TODO Auto-generated method stub
Toast.makeText(context, "SAMPLE BROADCAST", Toast.LENGTH_LONG).show();

}

}

LAYOUT
<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="com.example.broadcastlesson.FirstActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:text="@string/hello_world"
        android:textSize="18sp" />

    <Button
        android:id="@+id/bnBroadcast"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="101dp"
        android:text="@string/Button1" />

</RelativeLayout>

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

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="21" />

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
       
       
        <receiver android:name="ToReceive">
            <intent-filter >
                <action android:name="com.example.broadcastlesson.SAMPLE_BROADCAST" />
              
            </intent-filter>
          
           
            </receiver>
           
       
    </application>

</manifest>