android开机启动应用

今天在网上搜了下开机启动应用的例子，有很多，发现有些真机还是不行，非要在模似器上才行。把一些我试过的代码贴上来

下面这是主Activity，一打开让它显示系统的时间

package com.test;

import java.text.SimpleDateFormat;

import java.util.Date;

import android.app.Activity;

import android.app.KeyguardManager;

import android.app.KeyguardManager.KeyguardLock;

import android.graphics.Color;

import android.os.Bundle;

import android.widget.TextView;

public class AtestActivity extends Activity {

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

private TextView tv;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

tv = (TextView) findViewById(R.id.tv_test);

Date date = new Date();

SimpleDateFormat simp = new SimpleDateFormat("yyyy-MM-dd HH-mm-ss");

String time = simp.format(date);

tv.setText(time);

tv.setTextSize(25);

tv.setTextColor(Color.RED);

KeyguardManager keyguardManager

= (KeyguardManager)getSystemService(KEYGUARD_SERVICE);

KeyguardLock lock = keyguardManager.newKeyguardLock(KEYGUARD_SERVICE);

lock.disableKeyguard(); //禁用键盘锁显示。如果键盘锁是目前显示，隐藏它。

}

}

下面这个是从BroadCastReceiver继承的类

package
com.test;

import android.app.AlarmManager;

import android.app.PendingIntent;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.os.SystemClock;

import android.util.Log;

public class StartListenerActivity extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

Log.i("receiver", "onReceiver begin");

//这是网上有人用的方法，我用真机试过，用不了，可能我的手机被什么阻止了，可能此方法还是可用，不过我觉得能用也觉得麻烦

// PendingIntent pendingIntent = PendingIntent //不一定发生,不可预测的用此类

// .getActivity(context, 0, new Intent(context,AtestActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);

//

// long time = SystemClock.elapsedRealtime();

// AlarmManager alarmManager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);

//网上有人用此方法，只检查一次

// alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, time, pendingIntent);

//5秒检查一次，

// alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, time, 5 * 1000, pendingIntent);

//-----------------------------------------------------------------------------------

//这是另一个方法，我在真机也用不了，模拟器上暂时没试了

// String category = "android.intent.category.LAUNCHER";

// String action = "android.intent.action.MAIN";

// Intent newintent = new Intent(context, AtestActivity.class);

// newintent.setAction(action);

// newintent.addCategory(category);

// newintent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

//----------------------------------------------------------------------

//我试过的方法，我用我的手机也试不出，在模拟器上可以行得通

Intent newintent = new Intent(context, AtestActivity.class);

newintent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(newintent);

Log.i("receiver","onReceiver over");

}

}

配置文件

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

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

package="com.test"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk android:minSdkVersion="10" />

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

<!-- 有人说要在这里加下面一行，我没加，也可以 -->

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

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:name=".AtestActivity"

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=".StartListenerActivity">

<intent-filter >

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

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

</intent-filter>

</receiver>

</application>

</manifest>

效果如下