一、布局文件main.xml
==”fill_parent” ><SurfaceView=”fill_parent” /><RelativeLayout=”fill_parent”android:visibility=”gone” ><Button===”takepicture”android:text=”@string/takepicture” /><Button===></FrameLayout>
二、MainActivity.java
import java.io.File;import java.io.FileOutputStream;import android.app.Activity;import android.hardware.Camera;import android.hardware.Camera.PictureCallback;import android.os.Bundle;import android.os.Environment;import android.view.MotionEvent;import android.view.SurfaceHolder;import android.view.SurfaceHolder.Callback;import android.view.SurfaceView;import android.view.View;import android.view.ViewGroup;import android.view.Window;import android.view.WindowManager;{private View layout;private Camera camera;(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);setContentView(R.layout.main);layout = this.findViewById(R.id.buttonlayout);SurfaceView surfaceView = (SurfaceView) this.findViewById(R.id.surfaceView);surfaceView.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);surfaceView.getHolder().setFixedSize(176, 144);surfaceView.getHolder().setKeepScreenOn(true);surfaceView.getHolder().addCallback(new SurfaceCallback());}(View v) {if (camera != null) {switch (v.getId()) {case R.id.takepicture:camera.takePicture(null, null, new MyPictureCallback());break;case R.id.autofocus:camera.autoFocus(null);break;}}}{(byte[] data, Camera camera) {try {File jpgFile = new File(Environment.getExternalStorageDirectory(),System.currentTimeMillis() + “.jpg”);FileOutputStream outStream = new FileOutputStream(jpgFile);outStream.write(data);outStream.close();camera.startPreview();} catch (Exception e) {e.printStackTrace();}}}{(SurfaceHolder holder) {try {camera = Camera.open();// 打开摄像头Camera.Parameters parameters = camera.getParameters();// Log.i(“MainActivity”, parameters.flatten());parameters.setPreviewSize(800, 480);parameters.setPreviewFrameRate(5);parameters.setPictureSize(1024, 768);parameters.setJpegQuality(80);camera.setParameters(parameters);camera.setPreviewDisplay(holder);camera.startPreview();// 开始预览} catch (Exception e) {e.printStackTrace();}}(SurfaceHolder holder, int format, int width,int height) {}(SurfaceHolder holder) {if (camera != null) {camera.release();camera = null;}}}(MotionEvent event) {if (event.getAction() == MotionEvent.ACTION_DOWN) {layout.setVisibility(ViewGroup.VISIBLE);return true;}return super.onTouchEvent(event);}}
三、添加权限
==”android.permission.WRITE_EXTERNAL_STORAGE” />
效果如下：
，击败不等于击倒，跌倒了，爬起来，想一想，为什么跌倒了，
