Spinner in Android Example2

activity_main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    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" >

    <Spinner
        android:id="@+id/spinner1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

-->Under layout folder create text.xml as follows
text.xml:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textColor="#000000"
    android:textSize="25sp">

</TextView>

MainActivity.java:
package com.ram.spinner;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends Activity implements OnItemSelectedListener {
    String[] MONTHS = { "jan", "feb", "march", "april", "may", "june", "july",
            "august", "sep", "octo", "nov", "dec" };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Spinner spinner = (Spinner) findViewById(R.id.spinner1);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(
                getApplicationContext(), R.layout.text, MONTHS);

        spinner.setAdapter(adapter);

        spinner.setOnItemSelectedListener(this);
    }

    @Override
    public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
            long arg3) {
        // TODO Auto-generated method stub
        Toast.makeText(getApplicationContext(),
                "Item selected is :" + MONTHS[arg2], Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onNothingSelected(AdapterView<?> arg0) {
        // TODO Auto-generated method stub

    }

}








ScreenShots:

Reading Incoming Phone Number using Broadcast Receiver in Android

IncomingReiver.java:

package com.ram.braodcastincomingphnumberreceiver;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.telephony.TelephonyManager;

import android.widget.Toast;

public class IncomingReiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

Bundle bundle = intent.getExtras();

String state = bundle.getString(TelephonyManager.EXTRA_STATE);

if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {

String phonenumber = bundle

.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);

String incomongnumber = "Incoming number is : " + phonenumber;

Toast.makeText(context, incomongnumber, Toast.LENGTH_LONG).show();

}

}

}

MainActivity.java:

package com.ram.braodcastincomingphnumberreceiver;

import android.app.Activity;

import android.os.Bundle;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

}

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" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

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

</RelativeLayout>

AndroidManifest.xml:

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

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

    package="com.ram.braodcastincomingphnumberreceiver"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

      

     

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name="com.ram.braodcastincomingphnumberreceiver.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>

        <receiver android:name=".IncomingReiver" >

            <intent-filter>

                <action android:name="android.intent.action.PHONE_STATE" />

            </intent-filter>

        </receiver>

       

             </application>

</manifest>

ScreenShots:

Battery BroadcastReceiver in Android

BatteryBroadCast.java:

package com.ram.batteybroadcast;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

public class BatteryBroadCast extends BroadcastReceiver {

@Override

public void onReceive(Context c, Intent intent) {

int bStatus = intent.getIntExtra("level", 0);

Toast.makeText(c, "Battery Status :" + bStatus, Toast.LENGTH_LONG)

.show();

}

}

MainActivity.java:

package com.ram.batteybroadcast;

import android.app.Activity;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

registerReceiver(new BatteryBroadCast(), new IntentFilter(

Intent.ACTION_BATTERY_CHANGED));

}

}

Broadcast Receiver in Android

Broadcast Receiver:
A Broadcast Receiver is a component that responds to system-wide broadcast announcements.

Examples: 
1.Screen has turned off.
2.Battery is getting low.

3.A picture was captured...etc.

Implementation:
A broadcast receiver extends with BroadcastReceiver class and which is registered as a receiver in an android application via the AndroidManifest.xml file.

Alternatively ,we can also register broadcast receiver dynamically via the Context.registerReceiver() method.


In an event for which the broadcast receiver happens the onReceive() method of the broadcast receiver is called.

Usage:
package com.ram.broadcastreceiver;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class MyBroadcastReceiver extends BroadcastReceiver{

    @Override
    public void onReceive(Context arg0, Intent arg1) {
        
    }

}

 Registering in AndroidManifest file
AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ram.broadcastreceiver"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.ram.broadcastreceiver.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>
        <receiver android:name="MyBroadcastReceiver">
      <intent-filter ></intent-filter>
       </receiver>
    </application>
</manifest>