Android 自定义广播实例以及系统广播（基础）

今天讲讲Android的广播，Android自定义广播分为有序广播和无序广播，我们今天讲无序广播和系统广播。

自定义广播有发送者和接受者，发送者只要设置名字和传递数据，接受者接收，接收者接收需要注册，可以在清单文件中注册也可以用代码动态注册。

先贴发送：

package com.zking.sun.android_14_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 et_main_content;
private Intent intent;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_main_content = (EditText) findViewById(R.id.et_main_content);
intent =  new Intent();
//设置广播的名字
intent.setAction("com.zking.sun.android_14_sender.923");
}

public void send(View view){
String content = et_main_content.getText().toString();
//携带数据
intent.putExtra("data",content);
//发送广播 无序
// sendBroadcast(intent);
//发送黏性广播  粘性广播是解决动态广播退出不能接收的问题的，如要用需在清单文件中设置权限   (已过时
//<!--添加发送黏性广播的权限-->
// <uses-permission android:name="android.permission.BROADCAST_STICKY"></uses-permission>

sendStickyBroadcast(intent);

}
}

接收者写两个一个动态一个静态

静态

package com.zking.sun.android_14_received01;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

/**
* Created by sun on 2017/2/7.
*/

public class Receive01 extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if("com.zking.sun.android_14_sender.923".equals(intent.getAction())){
String data = intent.getStringExtra("data");
Log.i("data","I'm receive one ："+data);
}

}
}

清单文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.zking.sun.android_14_received01">

<application android:allowBackup="true" android:icon="@mipmap/ic_launcher"
android:label="@string/app_name" android:supportsRtl="true" android:theme=
b2c9
"@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>
<!--配置广播接受者：
1.在清单文件中配置（静态广播）
2.使用java 代码(动态广播)
-->
<receiver android:name=".Receive01">
<intent-filter>
<action android:name="com.zking.sun.android_14_sender.923"></action>
</intent-filter>
</receiver>
</application>

</manifest>

动态动态接收和静态是一样的，所以这里只贴注册广播接受者了

package com.zking.sun.android_15_received02;

import android.content.Intent;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

private Receive02 receive02;
private IntentFilter intentFilter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
intentFilter = new IntentFilter();
receive02 = new Receive02();
intentFilter.addAction("com.zking.sun.android_14_sender.923");
}

@Override
protected void onResume() {
super.onResume();
//注册
registerReceiver(receive02,intentFilter);
}

@Override
protected void onDestroy() {
super.onDestroy();
//注销
unregisterReceiver(receive02);
}
}

好了，接下来讲讲系统的广播，今天就讲一个小例子吧，就是监听手机的电话状态。在这里你先要在清单文件中设置权限，就是允许读取手机状态的权限。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.zking.sun.android_15_phone">
<!--读取电话状态权限-->
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>

<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=".Phone_State">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE"></action>
</intent-filter>
</receiver>
</application>

</manifest>

接下来是监听的小例子了

package com.zking.sun.android_15_phone;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;

/**
* Created by sun on 2017/2/7.
*/

public class Phone_State extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if("android.intent.action.PHONE_STATE".equals(intent.getAction())){
//获取电话号码
String number = intent.getStringExtra("incoming_number");
Log.i("test","电话号码 ："+number);

//获取电话状态
//电话管理者
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
int state = tm.getCallState();
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
Log.i("test","女神来电话了");
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.i("test","女神正在和你通电话哦");
break;
case TelephonyManager.CALL_STATE_IDLE:
Log.i("test","女神挂电话并送了个香吻给你");
break;
}

}

}
}

接着你就可以测试啦。

今天的分享就到这里啦，谢谢大家的观看！