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 client com.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。
 
 
 
posted on 2010-12-15 14:28  snowdrop  阅读(23463)  评论(0编辑  收藏  举报