0
点赞
收藏
分享

微信扫一扫

Android 开发系列11 自启动程序

#实现原理
Android系统启动时会发送一个ACTION_BOOT_COMPLETED的广播,android.intent.action.BOOT_COMPLETED

#代码
新建一个空项目

package com.example.autorun;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

TextView tv = new TextView(this);
tv.setText("Hello Android");
setContentView(R.layout.activity_main);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}

新建一个类,从BroadcastReceiver继承

package com.example.autorun;

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

public class AutoRun extends BroadcastReceiver {
private final String ACTION = "android.intent.action.BOOT_COMPLETED";

@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(ACTION)) ;
{
Intent in = new Intent(context, MainActivity.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//或者用in.setFlags,暂时不知道有什么区别
context.startActivity(in);

}

}
}

配置文件:

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".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>

<!-- 向系统注册receiver -->
<receiver android:name="com.example.autorun.AutoRun" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
</application>


举报

相关推荐

0 条评论