android四大组件之BroadcastReceiver开机启动

和其他BroadcastReceiver一样需要配置接收的广播信息，然后配置权限

<receiver
android:name="com.example.kaijistart.BootReceiver" >
<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>

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

然后就在BroadcastReceiver里进行intent跳转就可以了

package com.example.kaijistart;

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

public class BootReceiver extends BroadcastReceiver {
public BootReceiver() {
}

@Override
public void onReceive(Context context, Intent intent) {
Intent it = new Intent(context,MainActivity.class);
//设置新的任务栈,如果我们从系统图标点进去，系统会创建activity栈，
//但是我们现在没有点击就要自己创建任务栈了
it.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(it);
System.out.println("开机了");
}
}

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

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.kaijistart.MainActivity"
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="com.example.kaijistart.BootReceiver" >
<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
</application>

</manifest>