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/** |
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* name : 手电筒主界面 |
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* author : ycgpp@126.com |
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* date : 2012-12-21 15:50:17 |
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*/ |
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package com.android.app; |
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import android.app.Activity; |
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import android.hardware.Camera; |
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import android.hardware.Camera.Parameters; |
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import android.os.Bundle; |
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import android.view.View; |
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import android.widget.TextView; |
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import android.widget.Toast; |
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public class Main extends Activity { |
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private boolean isopent = false; |
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private Camera camera; |
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@Override |
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protected void onCreate(Bundle savedInstanceState) { |
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// TODO Auto-generated method stub |
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super.onCreate(savedInstanceState); |
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View view = View.inflate(this, R.layout.main, null); |
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setContentView(view); |
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TextView img_but = (TextView) findViewById(R.id.main_img); |
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img_but.setOnClickListener(new View.OnClickListener() { |
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@Override |
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public void onClick(View v) { |
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// TODO Auto-generated method stub |
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if (!isopent) { |
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Toast.makeText(getApplicationContext(), "您已经打开了手电筒", 0) |
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.show(); |
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camera = Camera.open(); |
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Parameters params = camera.getParameters(); |
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params.setFlashMode(Parameters.FLASH_MODE_TORCH); |
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camera.setParameters(params); |
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camera.startPreview(); // 开始亮灯 |
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isopent = true; |
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} else { |
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Toast.makeText(getApplicationContext(), "关闭了手电筒", |
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Toast.LENGTH_SHORT).show(); |
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camera.stopPreview(); // 关掉亮灯 |
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camera.release(); // 关掉照相机 |
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isopent = false; |
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} |
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} |
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}); |
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} |
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} |
[代码] 布局文件代码
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<?xml version="1.0" encoding="utf-8"?> |
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" |
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android:layout_width="match_parent" |
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android:layout_height="match_parent" |
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android:orientation="vertical" > |
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<TextView |
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android:id="@+id/main_img" |
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android:layout_width="fill_parent" |
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android:layout_height="fill_parent" |
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android:background="@drawable/main_body"> |
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</TextView> |
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</LinearLayout> |
[代码] AndroidManifest.xml文件
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" |
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package="com.android.app" |
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android:versionCode="1" |
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android:versionName="1.0" > |
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<uses-sdk |
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android:minSdkVersion="8" |
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android:targetSdkVersion="15" /> |
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<application |
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android:icon="@drawable/ic_launcher" |
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android:label="@string/app_name" |
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android:theme="@style/AppTheme" > |
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<activity android:name=".AppStart" > |
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<intent-filter> |
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<action android:name="android.intent.action.MAIN" /> |
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<category android:name="android.intent.category.LAUNCHER" /> |
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</intent-filter> |
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</activity> |
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<activity android:name=".Main" > |
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</activity> |
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</application> |
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<!-- 摄像头、手电筒 --> |
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<uses-permission android:name="android.permission.CAMERA" /> |
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<uses-permission android:name="android.permission.FLASHLIGHT" /> |
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<uses-feature android:name="android.hardware.camera" /> |
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<uses-feature android:name="android.hardware.camera.autofocus" /> |
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<uses-feature android:name="android.hardware.camera.flash" /> |
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</manifest> |
