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android 广播接收的数据如何用TextView显示

发布网友 发布时间:2024-10-23 18:02

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热心网友 时间:2024-11-06 09:46

这是我以前做过的一个例子,看看能不能给你帮助,给你参考参考吧。。。。
  这里面有三个广播。。。。

  public class Test020502Activity extends Activity implements OnClickListener{
  /** Called when the activity is first created. */
  private TextView tv1;
  private TextView tv2;
  private TextView tv3;
  private BroadcastReceiver broadcastReceiver1 = new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent intent) {
  // TODO Auto-generated method stub
  Bundle bundle = getResultExtras(false);
  String setedString=bundle.getString("key1");
  bundle.putString("key1", setedString+"消息接收者1文字");
  setResultExtras(bundle);

  tv1.setText(setedString+"消息接收者1文字");

  Toast.makeText(context, "接收者1"+intent.getStringExtra("saySome"), Toast.LENGTH_SHORT).show();

  //中止广播
  //abortBroadcast();
  }
  };
  private BroadcastReceiver broadcastReceiver2= new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent intent) {
  // TODO Auto-generated method stub
  Bundle bundle = getResultExtras(false);
  String setedString=bundle.getString("key1");
  bundle.putString("key1", setedString+"消息接收者2文字");
  setResultExtras(bundle);

  tv2.setText(setedString+"消息接收者2文字");
  Toast.makeText(context, "接收者2"+intent.getStringExtra("saySome"), Toast.LENGTH_SHORT).show();
  }
  };
  private BroadcastReceiver broadcastReceiver3 = new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent intent) {
  // TODO Auto-generated method stub
  //makeMap:1,true:没有得到,自动生成一个新的Bundle对象。返回新的Bundle对象
  // 2,false:没有得到,不自动生成,返回的null
  Bundle bundle = getResultExtras(true);
  bundle.putString("key1", "消息接收者3文字");
  setResultExtras(bundle);

  tv3.setText("消息接收者3文字");
  Toast.makeText(context, "接收者3"+intent.getStringExtra("saySome"), Toast.LENGTH_SHORT).show();
  }
  };
  @Override
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  ToggleButton btnReceive1 = (ToggleButton)findViewById(R.id.btnBroadcastReceive1);
  ToggleButton btnReceive2 = (ToggleButton)findViewById(R.id.btnBroadcastReceive2);
  ToggleButton btnReceive3 = (ToggleButton)findViewById(R.id.btnBroadcastReceive3);

  btnReceive1.setOnClickListener(this);
  btnReceive2.setOnClickListener(this);
  btnReceive3.setOnClickListener(this);

  Button btnSendBroadcast =(Button)findViewById(R.id.btnSendBroadcast);
  Button btnSendOrderBroadcast =(Button)findViewById(R.id.btnSendOrderBroadcast);
  Button btnSendStickyBroadcast =(Button)findViewById(R.id.btnSendStickyBroadcast);

  btnSendStickyBroadcast.setOnClickListener(this);
  btnSendBroadcast.setOnClickListener(this);
  btnSendOrderBroadcast.setOnClickListener(this);

  Button btnStart =(Button)findViewById(R.id.btnStart);
  btnStart.setOnClickListener(this);

  tv1=(TextView)findViewById(R.id.tv1);
  tv2=(TextView)findViewById(R.id.tv2);
  tv3=(TextView)findViewById(R.id.tv3);
  }

  @Override
  public void onClick(View v) {
  // TODO Auto-generated method stub
  switch (v.getId()) {
  case R.id.btnBroadcastReceive1:
  //消息接收者的注册与解除注册
  ToggleButton b1=(ToggleButton)v;
  if(b1.isClickable()){//要接收广播,要注册
  IntentFilter intentFilter = new IntentFilter();
  intentFilter.addAction("com.newer.test020502");
  intentFilter.setPriority(500);//当前消息接收者的优先级
  registerReceiver(broadcastReceiver1, intentFilter);
  }else{//不需要接收广播,取消注册
  unregisterReceiver(broadcastReceiver1);
  }
  break;
  case R.id.btnBroadcastReceive2:
  ToggleButton b2=(ToggleButton)v;
  if(b2.isClickable()){//要接收广播,要注册
  IntentFilter intentFilter = new IntentFilter();
  intentFilter.addAction("com.newer.test020502");
  intentFilter.setPriority(600);//当前消息接收者的优先级
  registerReceiver(broadcastReceiver2, intentFilter);
  }else{//不需要接收广播,取消注册
  unregisterReceiver(broadcastReceiver2);
  }
  break;
  case R.id.btnBroadcastReceive3:
  ToggleButton b3=(ToggleButton)v;
  if(b3.isClickable()){//要接收广播,要注册
  IntentFilter intentFilter = new IntentFilter();
  intentFilter.addAction("com.newer.test020502");
  intentFilter.setPriority(700);//当前消息接收者的优先级
  registerReceiver(broadcastReceiver3, intentFilter);
  }else{//不需要接收广播,取消注册
  unregisterReceiver(broadcastReceiver3);
  }
  break;
  case R.id.btnSendOrderBroadcast:
  //发送排序广播
  Intent intent=new Intent();
  intent.setAction("com.newer.test020502");
  intent.putExtra("saySome", "Ho~~~~~~~La~~~~~~~");
  sendOrderedBroadcast(intent, null);
  break;
  case R.id.btnSendBroadcast:
  Intent intent1 = new Intent();
  intent1.setAction("com.newer.sendBroadcast");
  intent1.setFlags(1);
  sendBroadcast(intent1);
  break;
  case R.id.btnSendStickyBroadcast:
  Intent intent2 = new Intent();
  intent2.setAction("com.newer.sendStickyBroadcast");
  intent2.setFlags(2);
  sendStickyBroadcast(intent2);
  break;
  case R.id.btnStart:
  Intent intent3=new Intent(Test020502Activity.this,OtherActivity.class);
  startActivity(intent3);
  break;
  default:
  break;
  }

  }
  }
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