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android Broadcast学习

2016-03-23 14:15 453 查看
其实所谓的静态注册,动态注册,是指接收广播的时候,是静态注册接收还是动态注册接收,发送的时候不分静态,动态
以发送intent为例,
一共分4种情况,以每次注册两个Broadcast为例:
情况一,注册2个静态Broadcast
如果是静态注册的,接收的一定是某一个类继承BroadcastReceiver
2个java文件如下:
BroadcastActivity.java



代码

package com.broad.test1;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.widget.Button;

import android.view.View;

import android.view.View.OnClickListener;

import android.util.Log;

//2个静态注册

publicclass BroadcastActivity extends Activity
{

/** Called when the activity is first created. */

private Button button01;

private Button button02;

privatestaticfinal String
TAG ="BroadcastActivity";

privatestaticfinal String
INTENAL_ACTION_1 ="su1.bluetooth.true";

privatestaticfinal String
INTENAL_ACTION_2 ="su1.bluetooth.false";

@Override

publicvoid onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

button01 = (Button) findViewById(R.id.button01);

button02 = (Button) findViewById(R.id.button02);

button01.setOnClickListener(mybtnListener);

button02.setOnClickListener(mybtnListener);

}

private OnClickListener mybtnListener =new OnClickListener()
{

@Override

publicvoid onClick(View v) {

// TODO Auto-generated method stub

if (v.getId() == (R.id.button01)) {

Intent intent =new Intent(INTENAL_ACTION_1);

// 也可以用mContext.sendBroadcast(intent),mContext.sendBroadcast可以在构造函数里面初始化,

// 有内部类的时候必须用???

sendBroadcast(intent);

} elseif (v.getId() == (R.id.button02))
{

Intent intent =new Intent(INTENAL_ACTION_2);

sendBroadcast(intent);

} else {

Log.v(TAG, "not true not false");

}

}

};

}

BroadcastRecTest.java



代码

package com.broad.test1;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

publicclass BroadcastRecTest extends BroadcastReceiver
{

privatestaticfinal String
TAG="BroadcastActivity";

privatestaticfinal String
INTENAL_ACTION_1="su1.bluetooth.true";

privatestaticfinal String
INTENAL_ACTION_2="su1.bluetooth.false";

@Override

publicvoid onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

String action = intent.getAction();

if(action.equals(INTENAL_ACTION_1)){

Log.d(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>>>su1.bluetooth.true");

}elseif(action.equals(INTENAL_ACTION_2)){

Log.d(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>su1.bluetooth.false");

}else{

Log.d(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>other type intent");

}

}

}

main.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

>

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

/>

<Button

android:id="@+id/button01"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="静态接收广播true"/>

<Button

android:id="@+id/button02"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="静态接收广播false"/>

</LinearLayout>

AndroidManifest.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.broad.test1"

android:versionCode="1"

android:versionName="1.0">

<application android:icon="@drawable/icon" android:label="@string/app_name">

<activity android:name=".BroadcastActivity"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN"/>

<category android:name="android.intent.category.LAUNCHER"/>

</intent-filter>

</activity>

<receiver android:name="BroadcastRecTest">

<intent-filter>

<action android:name="su1.bluetooth.true"/>

<action android:name="su1.bluetooth.false"/>

</intent-filter>

</receiver>

</application>

<uses-sdk android:minSdkVersion="8"/>

</manifest>

运行结果:
注意,静态注册的broadcast运行有点慢:



情况2,一个静态,一个动态注册Broadcast
BroadcastActivity.java



代码

package com.broad.test1;

import android.app.Activity;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.widget.Button;

import android.view.View;

import android.view.View.OnClickListener;

import android.util.Log;

//1个动态,1个静态注册

publicclass BroadcastActivity extends Activity
{

/** Called when the activity is first created. */

private Button button01;

private Button button02;

privatestaticfinal String
TAG="BroadcastActivity";

privatestaticfinal String
INTENAL_ACTION_1="su2.bluetooth.true";

privatestaticfinal String
INTENAL_ACTION_2="su2.bluetooth.false";

@Override

publicvoid onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

button01=(Button)findViewById(R.id.button01);

button02=(Button)findViewById(R.id.button02);

button01.setOnClickListener(mybtnListener);

button02.setOnClickListener(mybtnListener);

}

private OnClickListener mybtnListener=new OnClickListener(){

@Override

publicvoid onClick(View v) {

// TODO Auto-generated method stub

if(v.getId()==(R.id.button01)){

Intent intent=new Intent(INTENAL_ACTION_1);

sendBroadcast(intent);

}elseif(v.getId()==(R.id.button02)){

Intent intent=new Intent(INTENAL_ACTION_2);

sendBroadcast(intent);

}else{

Log.v(TAG,"not true not false");

}

}

};

// 接收动态注册广播的BroadcastReceiver

private BroadcastReceiver bcrIntenal2 =new BroadcastReceiver()
{

@Override

publicvoid onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

//如果有多个动态注册的广播,要用if(action.equals()){}else if(action.equals()){}来判断是哪个

//String action = intent.getAction();

//这里只有一个,不用判断了。

Log.v(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>dong--su2.bluetooth.false");

}

};

//在onStart中动态注册广播,当然也可以在onCreate里面注册

@Override

protectedvoid onStart() {

// TODO Auto-generated method stub

super.onStart();

//动态注册

IntentFilter intentFilter=new IntentFilter(INTENAL_ACTION_2);

//也可以用这种方法动态注册多个,说明我可以”接收“这么多的动态广播。

/* IntentFilter intentFilter= new IntentFilter();

intentFilter.addAction("action1");

intentFilter.addAction("action2");*/

registerReceiver(bcrIntenal2,intentFilter);

}

//在onStop中取消注册广播,如果在onCreate里面注册,那么在onDestroy里面取消注册。

@Override

protectedvoid onStop() {

// TODO Auto-generated method stub

super.onStop();

unregisterReceiver(bcrIntenal2);

}

}

BroadcastRecTest.java



代码

package com.broad.test1;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

publicclass BroadcastRecTest extends BroadcastReceiver
{

privatestaticfinal String
TAG="BroadcastActivity";

privatestaticfinal String
INTENAL_ACTION_1="su2.bluetooth.true";

@Override

publicvoid onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

String action = intent.getAction();

if(action.equals(INTENAL_ACTION_1)){

Log.d(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>>>su.bluetooth.true");

}else{

Log.d(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>other type intent--jingtai");

}

}

}

main.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

>

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

/>

<Button

android:id="@+id/button01"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="静态接收广播true"/>

<Button

android:id="@+id/button02"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="动态接收广播false"/>

</LinearLayout>

AndroidManifest.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.broad.test1"

android:versionCode="1"

android:versionName="1.0">

<application android:icon="@drawable/icon" android:label="@string/app_name">

<activity android:name=".BroadcastActivity"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN"/>

<category android:name="android.intent.category.LAUNCHER"/>

</intent-filter>

</activity>

<receiver android:name="BroadcastRecTest">

<intent-filter>

<action android:name="su2.bluetooth.true"/>

</intent-filter>

</receiver>

</application>

<uses-sdk android:minSdkVersion="8"/>

</manifest>

true是静态注册的,在Android.xml中注册的,false是动态注册的,在java代码中注册的
运行结果:



情况三、两个都是动态注册的,在同一个Activity里面既发送,又接收,(当然也可以在不同的java中,一个发送,另一个java接收,哪怕是不同的包)
动态注册不需要一个类继承BroadcastReceiver这个类了,直接new一个对象即可


代码

package com.broad.test1;

import android.app.Activity;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.widget.Button;

import android.view.View;

import android.view.View.OnClickListener;

import android.util.Log;

//两个动态注册

publicclass BroadcastActivity extends Activity
{

/** Called when the activity is first created. */

private Button button01;

private Button button02;

privatestaticfinal String
TAG="BroadcastActivity";

privatestaticfinal String
INTENAL_ACTION_1="su3.bluetooth.true";

privatestaticfinal String
INTENAL_ACTION_2="su3.bluetooth.false";

// private static final String BLUETOOTH_PERM = android.Manifest.permission.BLUETOOTH;

@Override

publicvoid onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

button01=(Button)findViewById(R.id.button01);

button02=(Button)findViewById(R.id.button02);

button01.setOnClickListener(mybtnListener);

button02.setOnClickListener(mybtnListener);

}

private OnClickListener mybtnListener=new OnClickListener(){

@Override

publicvoid onClick(View v) {

// TODO Auto-generated method stub

if(v.getId()==(R.id.button01)){

Intent intent=new Intent(INTENAL_ACTION_1);

sendBroadcast(intent);

}elseif(v.getId()==(R.id.button02)){

Intent intent=new Intent(INTENAL_ACTION_2);

sendBroadcast(intent);

}else{

Log.v(TAG,"not true not false");

}

}

};

// 接收动态注册广播的BroadcastReceiver

private BroadcastReceiver bcrIntenal2 =new BroadcastReceiver()
{

@Override

publicvoid onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

//如果有多个动态注册的广播,要用if(action.equals()){}else if(action.equals()){}来判断是哪个

String action = intent.getAction();

if(action.equals(INTENAL_ACTION_1)){

Log.v(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>dong--su3.bluetooth.true");

}elseif(action.equals(INTENAL_ACTION_2)){

Log.v(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>dong--su3.bluetooth.false");

}

}

};

//在onStart中动态注册广播,当然也可以在onCreate里面注册

@Override

protectedvoid onStart() {

// TODO Auto-generated method stub

super.onStart();

//动态注册两个,

IntentFilter intentFilter=new IntentFilter();

intentFilter.addAction(INTENAL_ACTION_1);

intentFilter.addAction(INTENAL_ACTION_2);

registerReceiver(bcrIntenal2,intentFilter);

}

//在onStop中取消注册广播,如果在onCreate里面注册,那么在onDestroy里面取消注册。

@Override

protectedvoid onStop() {

// TODO Auto-generated method stub

super.onStop();

unregisterReceiver(bcrIntenal2);

}

}

main.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

>

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

/>

<Button

android:id="@+id/button01"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="动态接收广播true"/>

<Button

android:id="@+id/button02"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="动态接收广播false"/>

</LinearLayout>

AndroidManifest.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.broad.test1"

android:versionCode="1"

android:versionName="1.0">

<application android:icon="@drawable/icon" android:label="@string/app_name">

<activity android:name=".BroadcastActivity"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN"/>

<category android:name="android.intent.category.LAUNCHER"/>

</intent-filter>

</activity>

</application>

<uses-sdk android:minSdkVersion="8"/>

</manifest>

运行结果:



情况4,sendBroadcast的时候加权限,以2个都动态注册为例


代码

package com.broad.test1;

import android.app.Activity;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.widget.Button;

import android.view.View;

import android.view.View.OnClickListener;

import android.util.Log;

//两个动态注册,sendBroadcast的时候加权限

publicclass BroadcastActivity extends Activity
{

/** Called when the activity is first created. */

private Button button01;

private Button button02;

privatestaticfinal String
TAG="BroadcastActivity";

privatestaticfinal String
INTENAL_ACTION_1="su4.bluetooth.true";

privatestaticfinal String
INTENAL_ACTION_2="su4.bluetooth.false";

privatestaticfinal String
BLUETOOTH_PERM = android.Manifest.permission.BLUETOOTH;

@Override

publicvoid onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

button01=(Button)findViewById(R.id.button01);

button02=(Button)findViewById(R.id.button02);

button01.setOnClickListener(mybtnListener);

button02.setOnClickListener(mybtnListener);

}

private OnClickListener mybtnListener=new OnClickListener(){

@Override

publicvoid onClick(View v) {

// TODO Auto-generated method stub

if(v.getId()==(R.id.button01)){

Intent intent=new Intent(INTENAL_ACTION_1);

sendBroadcast(intent,BLUETOOTH_PERM);

}elseif(v.getId()==(R.id.button02)){

Intent intent=new Intent(INTENAL_ACTION_2);

sendBroadcast(intent,BLUETOOTH_PERM);

}else{

Log.v(TAG,"not true not false");

}

}

};

// 接收动态注册广播的BroadcastReceiver

private BroadcastReceiver bcrIntenal2 =new BroadcastReceiver()
{

@Override

publicvoid onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

//如果有多个动态注册的广播,要用if(action.equals()){}else if(action.equals()){}来判断是哪个

String action = intent.getAction();

if(action.equals(INTENAL_ACTION_1)){

Log.v(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>dong--su4.bluetooth.true");

}elseif(action.equals(INTENAL_ACTION_2)){

Log.v(TAG,"surx>>>>>>>>>>>>>>>>>>>>>>>>>>>dong--su4.bluetooth.false");

}

}

};

//在onStart中动态注册广播,当然也可以在onCreate里面注册

@Override

protectedvoid onStart() {

// TODO Auto-generated method stub

super.onStart();

//动态注册两个,说明我可以”接收“2个这样Action的动态广播

IntentFilter intentFilter=new IntentFilter();

intentFilter.addAction(INTENAL_ACTION_1);

intentFilter.addAction(INTENAL_ACTION_2);

registerReceiver(bcrIntenal2,intentFilter);

}

//在onStop中取消注册广播,如果在onCreate里面注册,那么在onDestroy里面取消注册。

@Override

protectedvoid onStop() {

// TODO Auto-generated method stub

super.onStop();

unregisterReceiver(bcrIntenal2);

}

}

发送的时候加了蓝牙权限,
若在使用sendBroadcast()的方法是指定了接收权限,则只有接收方的包内--在AndroidManifest.xml中用<uses- permission>标签声明了拥有此权限的BroascastReceiver才会有可能接收到发送来的Broadcast。
同样,若在注册BroadcastReceiver时指定了可接收的Broadcast的权限,则只有在接收方的包内的AndroidManifest.xml中 用<uses-permission>标签声明了,拥有此权限的Context对象所发送的Broadcast才能被这个 BroadcastReceiver所接收。
main.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

>

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

/>

<Button

android:id="@+id/button01"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="动态接收广播true"/>

<Button

android:id="@+id/button02"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="动态接收广播false"/>

</LinearLayout>

AndroidManifest.xml


代码

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.broad.test1"

android:versionCode="1"

android:versionName="1.0">

<application android:icon="@drawable/icon" android:label="@string/app_name">

<activity android:name=".BroadcastActivity"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN"/>

<category android:name="android.intent.category.LAUNCHER"/>

</intent-filter>

</activity>

</application>

<uses-sdk android:minSdkVersion="8"/>

<uses-permission android:name="android.permission.BLUETOOTH"/>

</manifest>

注意上面加的蓝牙permission权限
运行结果:



两个Application间,发送广播,(以静态为例)
发送端:

package com.sendbroadcast.test1;

import android.app.Activity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
//import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.util.Log;

public class SenderTest1Activity extends Activity {
/** Called when the activity is first created. */
private Button btn1;
private static String TAG = "SenderTest1Activity";

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btn1 = (Button) findViewById(R.id.btn1);
btn1.setText("susuSendBroadcast");
btn1.setOnClickListener(mylistener1);
Log.v(TAG, "onCreate........");
}

OnClickListener mylistener1 = new OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
Log.v(TAG, "@@@@@onclicksendbroadcast");
if (v.getId() == btn1.getId()) {
Log.v(TAG, "onclicksendbroadcast");
Intent myIntent = new Intent();
myIntent.setAction("su.broadcast.send");
sendBroadcast(myIntent);
}

}

};
}


接收端:
另一个application
1、Activity

package com.broadcast.receiver.test1;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class BroadcastReceiverTest1Activity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}


2、BroadcastReceiver

package com.broadcast.receiver.test1;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class MyIntentReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context arg0, Intent intent) {
// TODO Auto-generated method stub
String action =intent.getAction();
if(action.equals("su.broadcast.send")){
Log.v("MyIntentReceiver", "#####shoudao");
}
}

}


3、AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.broadcast.receiver.test1"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="15" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".BroadcastReceiverTest1Activity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

</activity>

<receiver
android:name=".MyIntentReceiver"
android:label="wodeReceiver" >
<intent-filter>
<action android:name="su.broadcast.send" />
</intent-filter>
</receiver>
</application>

</manifest>


运行Application1,点击button,Application2广播接收端会收到这个广播,打印log信息(但不会显示BroadcastReceiverTest1Activity的界面),还是显示SenderTest1Activity的界面,
Log信息如下:
01-30 05:14:01.146: V/SenderTest1Activity(769): onCreate........

01-30 05:14:01.766: I/ActivityManager(90): Displayed com.sendbroadcast.test1/.SenderTest1Activity: +996ms

01-30 05:14:02.085: W/InputManagerService(90): Starting input on non-focused clientcom.android.internal.view.IInputMethodClient$Stub$Proxy@415548b0 (uid=10009
pid=182)

01-30 05:14:02.125: W/NetworkManagementSocketTagger(90): setKernelCountSet(10009, 0) failed with errno -2

01-30 05:14:02.735: V/SenderTest1Activity(769): @@@@@onclicksendbroadcast

01-30 05:14:02.735: V/SenderTest1Activity(769): onclicksendbroadcast

01-30 05:14:02.776: V/MyIntentReceiver(977): #####shoudao

接收端Application3,用动态方式接收。(把Application1的发送的action变成("su.broadcast.send2");)

package com.myreceive.test2;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;

import android.util.Log;
public class BroadcastReceiverTest2Activity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
private BroadcastReceiver br= new BroadcastReceiver(){

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Log.v("BroadcastReceiverTest2Activity","#####dongtaireceive");
}

};
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
IntentFilter it = new IntentFilter();
it.addAction("su.broadcast.send2");
registerReceiver(br,it);
Log.v("BroadcastReceiverTest2Activity","#####registerReceiver");

}

@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onStop();
unregisterReceiver(br);
Log.v("BroadcastReceiverTest2Activity","#####unregisterReceiver");
}

}


先运行Application3,不能退出(back),否则就unregisterReceiver了,也就不能收到发送端发送的广播了。再运行Application1,点击button,发送广播,log信息如下:界面还是Application1的界面UI
01-30 07:13:14.918: V/SenderTest1Activity(651): @@@@@onclicksendbroadcast

01-30 07:13:14.918: V/SenderTest1Activity(651): onclicksendbroadcast

01-30 07:13:14.937: V/BroadcastReceiverTest2Activity(591): #####dongtaireceive
对于静态Application2接收广播来说,back之后也能接收到发送端发过来的广播!
注意:发送广播并不能调起另一个Activity!一直显示的都是发送广播的那个Activity的UI!!

总结:
以发送intent为例,发送广播都用sendBroadcast(intent);
静态注册接收的时候,只需要
(1)得到action,如:
String action = intent.getAction();

(2)判断action类型,做出相应的动作。
动态注册接收的时候,需要:
(1) IntentFilter intentFilter= new IntentFilter();
(2)intentFilter.addAction(。。);可以添加多个
(3)注册接收,registerReceiver(BroadcastReceiver对象,intentFilter);别忘了在其他需要的地方取消注册接收!!!
(4)得到action,如:

String action = intent.getAction();
(5)判断action类型,做出相应的动作。
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