activity代码
package com.example.studyreceiver; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; public class MainActivity extends Activity implements OnClickListener { NetworkReceiver mReceiver; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Intent intent = getIntent(); // String data = intent.getStringExtra("data"); if (mReceiver != null) { // unregisterReceiver(mReceiver); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override public void onClick(View v) { switch (v.getId()) { case R.id.register_receiver: this.startService(new Intent(this, ServiceDemo.class)); break; default: break; } } }
service代码:
package com.example.studyreceiver; import android.app.Service; import android.content.Intent; import android.content.IntentFilter; import android.net.ConnectivityManager; import android.os.IBinder; public class ServiceDemo extends Service { NetworkReceiver mReceiver; @Override public IBinder onBind(Intent intent) { return null; } @Override public void onCreate() { super.onCreate(); IntentFilter filter = new IntentFilter( ConnectivityManager.CONNECTIVITY_ACTION); NetworkReceiver mReceiver = new NetworkReceiver(); registerReceiver(mReceiver, filter); } @Override public void onDestroy() { super.onDestroy(); unregisterReceiver(mReceiver); } }
receiver代码:
package com.example.studyreceiver; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.widget.Toast; public class NetworkReceiver extends BroadcastReceiver { protected Context mContext; @Override public void onReceive(Context context, Intent intent) { mContext = context; method1(); // method2(intent); } private void method1() { // 第一种 ConnectivityManager connectivityManager = (ConnectivityManager) mContext .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo MOBILENetInfo = connectivityManager .getNetworkInfo(ConnectivityManager.TYPE_MOBILE); NetworkInfo WIFINetInfo = connectivityManager .getNetworkInfo(ConnectivityManager.TYPE_WIFI); if (!MOBILENetInfo.isConnected() && !WIFINetInfo.isConnected()) { Toast.makeText(mContext, "没用可用的网络 嘿嘿", Toast.LENGTH_SHORT).show(); } else { Toast.makeText(mContext, "有能用的网络呀", Toast.LENGTH_SHORT).show(); Notification notification = new Notification( R.drawable.ic_launcher, "Notification测试", System.currentTimeMillis()); NotificationManager notificationManager = (NotificationManager) mContext .getSystemService(Context.NOTIFICATION_SERVICE); Intent startintent = new Intent(mContext, MainActivity.class); startintent.putExtra("data", "data"); PendingIntent pendingIntent02 = PendingIntent.getActivity(mContext, 0, startintent, 0); notification.setLatestEventInfo(mContext, "测试", "有可用的网络呀", pendingIntent02); notificationManager.notify(0, notification); } } }