java - Android - Count Power button clicks and Start Activity -

i used below code, didnt find solution.

myreceiver.java:

    import android.content.broadcastreceiver;     import android.content.context;     import android.content.intent;     import android.util.log;     import android.widget.toast;      public class myreceiver extends broadcastreceiver {     @override     public void onreceive(context context, intent intent) {       log.v("onreceive", "power button pressed.");       toast.maketext(context, "power button clicked", toast.length_long)              .show();     }  } 

and mainactivity.java:

    import android.os.bundle;     import android.app.activity;     import android.view.menu;      public class mainactivity extends activity {          @override         public void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             setcontentview(r.layout.activity_main);         }          @override         public boolean oncreateoptionsmenu(menu menu) {             getmenuinflater().inflate(r.menu.activity_main, menu);             return true;         }     } 

and androidmanifest.xml:

  <application     android:icon="@drawable/ic_launcher"     android:label="@string/app_name"     android:theme="@style/apptheme" >     <activity         android:name=".mainactivity"         android:label="@string/title_activity_main" >         <intent-filter>             <action android:name="android.intent.action.main" />             <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity>     <receiver android:name=".myreceiver">     <intent-filter>         <action android:name="android.intent.action.screen_off"></action>         <action android:name="android.intent.action.screen_on"></action>         <action android:name="android.intent.action.action_power_connected"></action>         <action android:name="android.intent.action.action_power_disconnected"></action>          <action android:name="android.intent.action.action_shutdown"></action>     </intent-filter> </receiver> </application> 

but not getting toast messages on click of power button. please me on how count of powerbutton clicks , if clicks equals 5 move actvity. please me acheive this?

try this,

public class myreceiver extends broadcastreceiver {     static int countpoweroff=0;     private activity activity=null;     public myreceiver (activity activity)     {     this.activity=activity;     }     @override     public void onreceive(context context, intent intent) {        log.v("onreceive", "power button pressed.");        toast.maketext(context, "power button clicked", toast.length_long)              .show();       if (intent.getaction().equals(intent.action_screen_off))  {     countpoweroff++;     }  else if (intent.getaction().equals(intent.action_screen_on))  {       if(countpoweroff==5)       {           intent =new intent(activity,newactivity.class);           activity.startactivity(i);        }     }  } 

and,

public class mainactivity extends activity {          @override         public void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             setcontentview(r.layout.activity_main);             intentfilter filter = new intentfilter(intent.action_screen_on);             filter.addaction(intent.action_screen_off);             myreceiver mreceiver = new myreceiver (this);             registerreceiver(mreceiver, filter);         }          @override         public boolean oncreateoptionsmenu(menu menu) {             getmenuinflater().inflate(r.menu.activity_main, menu);             return true;         }     }