android mars视频代码 Broadcast TestBC2源码 BroadcastReceiver

package ycitss.testbc2; import android.app.Activity; import android.content.IntentFilter; import android.os.Bundle; import android.view.View; import android.widget.Button; public class TestBC2Activity extends Activity { /** Called when the activity is first created. */ private Button registerButton = null; private Button unregisterButton = null; private SMSReceiver smsReceiver = null; private static final String SMS_ACTION = "android.provider.Telephony.SMS_RECEIVED"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); registerButton = (Button) findViewById(R.id.register); registerButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // 生成一个BroadcastReceiver对象 smsReceiver = new SMSReceiver(); // 生成一个IntentFilter对象 IntentFilter filter = new IntentFilter(); // 为IntentFilter添加一个Action filter.addAction(SMS_ACTION); // 将BroadcastReceiver对象注册到系统当中 TestBC2Activity.this.registerReceiver(smsReceiver, filter); } }); unregisterButton = (Button) findViewById(R.id.unregister); unregisterButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // 解除BroadcastReceiver对象的注册 TestBC2Activity.this.unregisterReceiver(smsReceiver); } }); } }