android平台手电筒开发源代码

android平台手电筒开发源代码，AndroidManifest.xml文件的入口是startapp，这个文件没上传上来，大家可以自己写。

1. [代码]android     jQuery特效

/**

 * name   : 手电筒主界面

 * author : ycgpp@126.com

 * date    : 2012-12-21 15:50:17

 */

package com.android.app;

 

import android.app.Activity;

import android.hardware.Camera;

import android.hardware.Camera.Parameters;

import android.os.Bundle;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;

 

public class Main extends Activity {

 

private boolean isopent = false;

private Camera camera;

 

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

View view = View.inflate(this, R.layout.main, null);

setContentView(view);

TextView img_but = (TextView) findViewById(R.id.main_img);

 

img_but.setOnClickListener(new View.OnClickListener() {

 

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

if (!isopent) {

Toast.makeText(getApplicationContext(), "您已经打开了手电筒", 0)

.show();http://www.huiyi8.com/webyuanma/

camera = Camera.open();

Parameters params = camera.getParameters();

params.setFlashMode(Parameters.FLASH_MODE_TORCH);

camera.setParameters(params);

camera.startPreview(); // 开始亮灯

 

isopent = true;

} else {

Toast.makeText(getApplicationContext(), "关闭了手电筒",

Toast.LENGTH_SHORT).show();

camera.stopPreview(); // 关掉亮灯

camera.release(); // 关掉照相机

isopent = false;

}

}

});

}

 

}

2. [代码]布局文件代码     

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

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

 

    <TextView

        android:id="@+id/main_img"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent" 

        android:background="@drawable/main_body">

    </TextView>

 

</LinearLayout>

3. [代码]AndroidManifest.xml文件    

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

    package="com.android.app"

    android:versionCode="1"

    android:versionName="1.0" >

 

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="15" />

 

    <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity android:name=".AppStart" >

            <intent-filter>

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

 

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

            </intent-filter>

        </activity>

        <activity android:name=".Main" >

        </activity>

    </application>

    <!-- 摄像头、手电筒 -->

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

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

 

    <uses-feature android:name="android.hardware.camera" />

    <uses-feature android:name="android.hardware.camera.autofocus" />

    <uses-feature android:name="android.hardware.camera.flash" />

 

</manifest>