// dynamicReceiver

DynamicReceiver dynamicReceiver;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_login);

// 动态广播BroadcastReceiver

// 实例化IntentFilter对象

IntentFilter filter = new IntentFilter();

filter.addAction("cts_bcr");

dynamicReceiver = new DynamicReceiver();

// 注册广播接收

registerReceiver(dynamicReceiver,filter);

}

// 通过继承 BroadcastReceiver建立动态广播接收器

class DynamicReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

Toast toast = Toast.makeText(context,"动态广播："+ intent.getStringExtra("cts_bcr_msg"), Toast.LENGTH_SHORT);

// 设置弹出位置

toast.setGravity(Gravity.TOP,0,0);

toast.show();

}

}

// 动态注册需在Acticity生命周期onPause通过unregisterReceiver()方法移除广播接收器，优化内存空间，避免内存溢出

@Override

protected void onPause() {

super.onPause();

unregisterReceiver(dynamicReceiver);

}

// 发送测试

btnOK.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

Intent intent = new Intent();

intent.setAction("cts_bcr");

intent.putExtra("cts_bcr_msg","cts_bcr_msg 测试");

sendBroadcast(intent);

}

}