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

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/**  * 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();                     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

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<?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   悦德财富：https://www.yuedecaifu.com

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<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>