初学Android——广播接收者

来源：互联网发布：mars渲染软件编辑：程序博客网时间：2024/05/21 22:24
效果图：
代码实现;
    package mybroadcastreceiver;            import android.content.BroadcastReceiver;      import android.content.Context;      import android.content.Intent;      import android.util.Log;              public class MyBroadcastReceiverOne extends BroadcastReceiver {          @Override          public void onReceive(Context context, Intent intent) {              String name = intent.getExtras().getString("name");              Log.i("Recevier1", "接收到:"+name);                }      }   package mybroadcastreceiver;            import android.content.BroadcastReceiver;      import android.content.Context;      import android.content.Intent;      import android.util.Log;            public class MyBroadcastReceiverTwo extends BroadcastReceiver {          @Override          public void onReceive(Context context, Intent intent) {              String name = intent.getExtras().getString("name");              Log.i("Recevier2", "接收到:"+name);          }      }  



 package mybroadcastreceiver;            import android.content.BroadcastReceiver;      import android.content.Context;      import android.content.Intent;      import android.util.Log;            public class MyBroadcastReceiverThree extends BroadcastReceiver {          @Override          public void onReceive(Context context, Intent intent) {              String name = intent.getExtras().getString("name");              Log.i("Recevier3", "接收到:"+name);          }      }  MainActivity    package com.example.bz0209.myapplication;            import android.content.Intent;      import android.support.v7.app.AppCompatActivity;      import android.os.Bundle;      import android.view.View;      import android.widget.Toast;            public class MainActivity extends AppCompatActivity {                @Override          protected void onCreate(Bundle savedInstanceState) {              super.onCreate(savedInstanceState);              setContentView(R.layout.activity_main);                }          public void SendMessage(View view)//广播发送者          {              Intent intent = new Intent();                    intent.setAction("SendMessage");                    intent.putExtra("name","cyk");                    sendOrderedBroadcast(intent,null);                    Toast.makeText(getApplicationContext(), "发送广播成功", Toast.LENGTH_SHORT).show();                      }      }   <?xml version="1.0" encoding="utf-8"?>      <manifest xmlns:android="http://schemas.android.com/apk/res/android"          package="com.example.bz0209.myapplication">                <application              android:allowBackup="true"              android:icon="@mipmap/ic_launcher"              android:label="@string/app_name"              android:supportsRtl="true"              android:theme="@style/AppTheme">              <activity android:name=".MainActivity">                  <intent-filter>                      <action android:name="android.intent.action.MAIN" />                      <category android:name="android.intent.category.LAUNCHER" />                  </intent-filter>              </activity>                    <receiver android:name="mybroadcastreceiver.MyBroadcastReceiverOne">                  <intent-filter android:priority="1000">                      <action android:name="SendMessage"/>                  </intent-filter>              </receiver>                    <receiver android:name="mybroadcastreceiver.MyBroadcastReceiverThree">                  <intent-filter android:priority="200">                     <action android:name="SendMessage"/>                        </intent-filter>              </receiver>                    <receiver android:name="mybroadcastreceiver.MyBroadcastReceiverTwo">                  <intent-filter android:priority="600">                      <action android:name="SendMessage"/>                  </intent-filter>              </receiver>
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