/** Android开发之初识camera图像采集* 北京Android俱乐部群：167839253* Created on: 2011-8-24* Author: blueeagle* Email: liujiaxiang@gmail.com*/下面记录一个简单的相机的制作方法。制作相机，首先需要添加照相的权限。添加方法是在AndroidManifest.xml文件中添加<uses-permission android:name=” android.permission.CAMERA”>即可。其次：修改布局文件：如下代码所示。<textarea readonly name="code" class="html"><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     >     <SurfaceView     android:id = "@+id/mySurfaceView"     android:layout_width="320px"     android:layout_height="240px">     </SurfaceView>     <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     > <Button android:id="@+id/myButton"      android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="打开"/> <Button android:id="@+id/myButton2"      android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="关闭"/> </LinearLayout> </LinearLayout> </textarea>再次，编辑代码，如下所示：<textarea readonly name="code" class="java">/* *  Android开发之camera图像采集 *  MyTestCamera.java *  Created on: 2011-8-24 *  Author: blueeagle *  Email: liujiaxiang@gmail.com */ package com.blueeagle; import java.io.IOException; import android.app.Activity; import android.hardware.Camera; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.widget.Button; public class MyTestCamera extends Activity implements SurfaceHolder.Callback{     Camera myCamera;     SurfaceView mySurfaceView;     SurfaceHolder mySurfaceHolder;     Button myButton1;     Button myButton2;     boolean isPreview = false;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);                 mySurfaceView = (SurfaceView)findViewById(R.id.mySurfaceView);         myButton1 = (Button)findViewById(R.id.myButton);         myButton2 = (Button)findViewById(R.id.myButton2);                 mySurfaceHolder = mySurfaceView.getHolder();         mySurfaceHolder.addCallback(this);         mySurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);         myButton1.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View v) { initCamera(); }         });                myButton2.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View v) { if(myCamera!=null&amp;&amp;isPreview){ myCamera.stopPreview(); myCamera.release(); myCamera = null; isPreview = false; } }                 });     } public void initCamera() { // TODO Auto-generated method stub if(!isPreview){ myCamera = Camera.open(); } if(myCamera !=null &amp;&amp; !isPreview){ try{ myCamera.setPreviewDisplay(mySurfaceHolder); myCamera.startPreview(); } catch(IOException e){ e.printStackTrace(); } isPreview = true; } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { // TODO Auto-generated method stub } @Override public void surfaceCreated(SurfaceHolder holder) { // TODO Auto-generated method stub } @Override public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } } </textarea><br>如果在模拟器中运行，可以得到如图所示的情形。如果在真机上运行，则会打开摄像头，将实际的影响显现出来。关闭时，则定在关闭时的画面。这样基本可以完成了图像的采集。如果程序中对相机有要求的话，可以采用这种方式进行。<img src="http://hi.csdn.net/attachment/201108/24/0_1314193114Jhd0.gif" >这个例子只是一个小demo。供深入学习参考用。<br>