Android-显示传感器的值

Android 的开机自启动是通过捕捉开机结束的广播来实现的，手机的启动完后会给出一个BroadcastReceiver，在自己的程序中捕捉即可。



AutoBootReceiver.java 文件：

Java代码
1.package com.ldq.auto.boot;  
2. 
3.import android.content.BroadcastReceiver;  
4.import android.content.Context;  
5.import android.content.Intent;  
6.import android.util.Log;  
7. 
8.public class AutoBootReceiver extends BroadcastReceiver {  
9. 
10.    @Override 
11.    public void onReceive(Context context, Intent intent) {  
12.        // TODO Auto-generated method stub  
13.        if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {  
14.            Log.i("------", "AutoBootReceiver auto boot");  
15.            Intent in = new Intent(context, ExAutoBoot.class);  
16.            in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//添加Flags必不可少，否则报错  
17.            context.startActivity(in);  
18.        }  
19.    }  
20.} 
package com.ldq.auto.boot;

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

public class AutoBootReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
Log.i("------", "AutoBootReceiver auto boot");
Intent in = new Intent(context, ExAutoBoot.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//添加Flags必不可少，否则报错
context.startActivity(in);
}
}
}


ExAutoBoot.java 文件：

Java代码
1.package com.ldq.auto.boot;  
2. 
3.import android.app.Activity;  
4.import android.os.Bundle;  
5.import android.util.Log;  
6. 
7.public class ExAutoBoot extends Activity {  
8.    /** Called when the activity is first created. */ 
9.    @Override 
10.    public void onCreate(Bundle savedInstanceState) {  
11.        super.onCreate(savedInstanceState);  
12.        setContentView(R.layout.main);  
13.        Log.i("------","ExAutoBoot auto boot");  
14.    }  
15.} 
package com.ldq.auto.boot;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class ExAutoBoot extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Log.i("------","ExAutoBoot auto boot");
    }
}

AndroidManifest.xml 文件：

Java代码
1.<?xml version="1.0" encoding="utf-8"?>  
2.<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
3.    package="com.ldq.auto.boot" android:versionCode="1" 
4.    android:versionName="1.0">  
5.    <application android:icon="@drawable/icon" android:label="@string/app_name">  
6.        <activity android:name=".ExAutoBoot" android:label="@string/app_name">  
7.            <intent-filter>  
8.                <action android:name="android.intent.action.MAIN" />  
9.                <category android:name="android.intent.category.LAUNCHER" />  
10.            </intent-filter>  
11.        </activity>  
12.        <receiver android:name="AutoBootReceiver">  
13.            <intent-filter>  
14.                <action android:name="android.intent.action.BOOT_COMPLETED"></action>  
15.            </intent-filter>  
16.        </receiver>  
17.    </application>  
18.    <uses-sdk android:minSdkVersion="4" />  
19.    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>  
20.</manifest>