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

/**

* 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

<?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

<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>

<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>