Alarm Service | AlarmManagerExample in android

Here we are setting the time to 10 seconds so after 10 seconds a Toast pops up.
For receiving the Broadcast we have to create a class the extends the BroadcastReceiver class on which the onReceive function gets called when the service ends

main.xml

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

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

    android:orientation="vertical" android:padding="4dip"

    android:gravity="center_horizontal"

    android:layout_width="fill_parent" android:layout_height="fill_parent">

    <TextView

        android:layout_width="fill_parent" android:layout_height="wrap_content"

        android:layout_weight="0"

        android:paddingBottom="4dip"

        android:text="Alarm Demo"/>

    <Button android:id="@+id/one_shot"

        android:layout_width="wrap_content" android:layout_height="wrap_content"

        android:text="Start Alarm">

        <requestFocus />

    </Button>

</LinearLayout>

AndroidManifest :

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

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

    package="com.hb"

    android:versionCode="1"

    android:versionName="1.0" >

    <application

        android:icon="@drawable/icon"

        android:label="@string/app_name" >

        <activity

            android:name=".AlarmDemo"

            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=".MyAlarmReceiver"

            android:process=":remote" />

    </application>

</manifest>

MyAlarmReceiver.class

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

public class MyAlarmReceiver extends BroadcastReceiver

{

    @Override

    public void onReceive(Context context, Intent intent)

    {

Toast.makeText(context, "Alarm Received after 10 seconds.", Toast.LENGTH_SHORT).show();

    }

}

AlarmDemo.class

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class AlarmDemo extends Activity {

       Toast mToast;

       @Override

       protected void onCreate(Bundle savedInstanceState) {

              super.onCreate(savedInstanceState);

              setContentView(R.layout.main);

              Button button = (Button)findViewById(R.id.one_shot);

              button.setOnClickListener(mOneShotListener);

       }

       private OnClickListener mOneShotListener = new OnClickListener() {

              public void onClick(View v) {

                     Intent intent = new Intent(AlarmDemo.this,MyAlarmReceiver.class);

                     PendingIntent sender = PendingIntent.getBroadcast(AlarmDemo.this,

                                  0, intent, 0);

                     // We want the alarm to go off 10 seconds from now.

                     Calendar calendar = Calendar.getInstance();

                     calendar.setTimeInMillis(System.currentTimeMillis());

                     calendar.add(Calendar.SECOND, 10);

                     // Schedule the alarm!

                     AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);

                     am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender);

                     // Tell the user about what we did.

                     if (mToast != null) {

                           mToast.cancel();

                     }

                     mToast = Toast.makeText(AlarmDemo.this,"Alarm Started",

                                  Toast.LENGTH_LONG);

                     mToast.show();

              }

       };

}

Ref Link:
Link1:

Link2:
AlarmManagerExample : Visit 

I will be happy if you will provide your feedback or follow this blog. Any suggestion and help will be appreciated.

Thank you :)

Open wifi settings in android?

main.xml

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

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="How to open Wifi Settings Demo" />

    <Button

        android:id="@+id/open"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="Open Wifi settings" />

</LinearLayout>

OpenWifiSettingsDemo.class

public class OpenWifiSettingsDemo extends Activity {

      @Override

      public void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.main);

            Button open = (Button)findViewById(R.id.open);

            open.setOnClickListener(new OnClickListener() {

                  @Override

                  public void onClick(View v) {

                        openWifiSettings();

                  }

            });

      }

      public void openWifiSettings(){

            final Intent intent = new Intent(Intent.ACTION_MAIN, null);

            intent.addCategory(Intent.CATEGORY_LAUNCHER);

            final ComponentName cn = new ComponentName("com.android.settings", "com.android.settings.wifi.WifiSettings");

            intent.setComponent(cn);

            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

            startActivity( intent);

      }

}

I will be happy if you will provide your feedback or follow this blog. Any suggestion and help will be appreciated.

Thank you :)

PullToRefresh in android

Hello Friends, here today i am going to post Pull To refresh sample, It allows a user to refresh a list by pulling down and releasing from the top of the list. Hop this will help you.

Download Source code from here: PullToRefreshSampleCode

PullToRedresh With Load More : SampleCode

I will be happy if you will provide your feedback or follow this blog. Any suggestion and help will be appreciated.

Thank you :)

View-flipper in Android.

In this sample code contain sweeping images using View flipper with animation xml.

main.xml

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

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

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

    <ViewFlipper

        android:id="@+id/vfShow"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent" >

    </ViewFlipper>

</LinearLayout>

Create xml file in drawable folder
1.left_in.xml

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

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

    <translate

        android:duration="500"

        android:fromXDelta="100%p"

        android:toXDelta="0" />

    <alpha

        android:duration="500"

        android:fromAlpha="0.1"

        android:toAlpha="1.0" />

</set>

2.left_out.xml

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

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

    <translate

        android:duration="500"

        android:fromXDelta="0"

        android:toXDelta="-100%p" />

    <alpha

        android:duration="500"

        android:fromAlpha="1.0"

        android:toAlpha="0.1" />

</set>

3.right_in.xml

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

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

    <translate

        android:duration="500"

        android:fromXDelta="-100%p"

        android:toXDelta="0" />

    <alpha

        android:duration="500"

        android:fromAlpha="0.1"

        android:toAlpha="1.0" />

</set>

4.right_out.xml

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

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

    <translate

        android:duration="500"

        android:fromXDelta="0"

        android:toXDelta="100%p" />

    <alpha

        android:duration="500"

        android:fromAlpha="1.0"

        android:toAlpha="0.1" />

</set>

ViewFlipperSampleActivity.class

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.view.GestureDetector;

import android.view.GestureDetector.SimpleOnGestureListener;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.view.animation.AnimationUtils;

import android.widget.ImageView;

import android.widget.ViewFlipper;

public class ViewFlipperSampleActivity extends Activity {

private static final int SWIPE_MIN_DISTANCE = 120;

private static final int SWIPE_THRESHOLD_VELOCITY = 200;

private ViewFlipper vf;

private Context mContext;

private final GestureDetector detector = new GestureDetector(new MyGestureDetector());

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

mContext = this;

vf = (ViewFlipper) this.findViewById(R.id.vfShow);

vf.setOnTouchListener(new OnTouchListener()

{

@Override

public boolean onTouch(final View view, final MotionEvent event)

{

detector.onTouchEvent(event);

return true;

}

});

vf.addView(addImageView(R.drawable.scott));

vf.addView(addImageView(R.drawable.ricardo));

}

View addImageView(int resId)

{

ImageView iv = new ImageView(this);

iv.setImageResource(resId);

return iv;

}

class MyGestureDetector extends SimpleOnGestureListener

{

@Override

public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)

{

try

{

// right to left swipe

if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE

&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)

{

vf.setInAnimation(AnimationUtils.loadAnimation(mContext,R.anim.left_in));

vf.setOutAnimation(AnimationUtils.loadAnimation(mContext,R.anim.left_out));

vf.showNext();

return true;

}

else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)

{

vf.setInAnimation(AnimationUtils.loadAnimation(mContext,R.anim.right_in));

vf.setOutAnimation(AnimationUtils.loadAnimation(mContext,R.anim.right_out));

vf.showPrevious();

return true;

}

}

catch (Exception e)

{

e.printStackTrace();

}

return false;

}

}

}

Download sample code from here : ViewFlipperSampleCode

Dynamic Swipe view using gesture:

I will be happy if you will provide your feedback or follow this blog. Any suggestion and help will be appreciated.

Thank you :)