Android无序广播的实现代码

首先大多时候都是无序广播与有序广播的区别,那今天先讲讲无序广播.

咱们先来讲一个广播发送者和广播接受者的案例

1.如图:

熟悉一下广播传播者与广播接受者的属性

下面会带大家熟悉代码,简单的演示一下

2.代码演示:

发送者的一个简单布局

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:orientation="vertical" android:layout_height="match_parent" tools:context="com.example.my_android_sender.MainActivity"> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/et_main_content" android:hint="请输入要发送的内容" /> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:text="发送" android:onClick="send" /> </LinearLayout>

发送者的activity,在此之中,我用了黏性广播

package com.example.my_android_sender; import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.EditText; public class MainActivity extends AppCompatActivity { private EditText editText; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editText = (EditText) findViewById(R.id.et_main_content); } public void send(View view){ String content=editText.getText().toString(); //发送广播 //两种类型的广播 //有序广播 无序广播 Intent intent=new Intent(); //指定广播的名字 intent.setAction("com.example.my_android_sender.Tiny");//你的包名之后取一个名字 //指定广播内容 intent.putExtra("content",content); //发送无序广播 // sendBroadcast(intent); //发送无序黏性广播 sendStickyBroadcast(intent); } } 由于用了黏性广播,那就需要获取黏性广播的读取权限 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.my_android_sender"> <!--黏性广播权限--> <uses-permission android:name="android.permission.BROADCAST_STICKY"></uses-permission> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" 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> </application> </manifest>

两个接受者,一个动态注册(Receiver01),一个静态注册(Receiver02).

<!--注册:广播接受者 动态注册:使用java代码配置 静态注册:在xml文件中配置 --> 动态注册(Receiver01) A.MyReceiver01 package com.example.my_android_receiver01; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.util.Log; /** * Created by Administrator on 2017/7/11. */ public class MyReceiver01 extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { //获取广播的名字 String action=intent.getAction(); if ("com.example.my_android_sender.Tiny".equals(action)){ //获取广播内容 String content=intent.getStringExtra("content"); Log.i("test","广播接受者1号："+content); } } } B.activitypackage com.example.my_android_receiver01; import android.content.IntentFilter; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.InputFilter; public class MainActivity extends AppCompatActivity { private MyReceiver01 myReceiver01; private IntentFilter intentFilter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myReceiver01 = new MyReceiver01(); intentFilter = new IntentFilter(); intentFilter.addAction("com.example.my_android_sender.Tiny"); } //动态 @Override protected void onResume() { super.onResume(); //注册广播 registerReceiver(myReceiver01,intentFilter); } @Override protected void onDestroy() { super.onDestroy(); //取消注册 unregisterReceiver(myReceiver01); } } 静态注册(Receiver02).A.MyReceiver02由于它是静态所以不需要java代码,只需要配置xmlpackage com.example.my_android_receiver02; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.util.Log; /** * Created by Administrator on 2017/7/11. */ public class MyReceiver02 extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { //获取广播的名字 String action=intent.getAction(); if ("com.example.my_android_sender.Tiny".equals(action)){ //获取广播内容 String content=intent.getStringExtra("content"); Log.i("test","广播接受者2号："+content); } } }配置<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.my_android_receiver02"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" 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> <!--注册:广播接受者 动态注册:使用java代码配置 静态注册:在xml文件中配置 --> <receiver android:name=".MyReceiver02"> <intent-filter> <action android:name="com.example.my_android_sender.Tiny"></action> </intent-filter> </receiver> </application> </manifest>这个案例就算是完成了,如果有什么疑问,请进行留言回复.