Android 偷拍功能/手機關閉能拍照
效果如下：
其實偷拍與偷錄實現方式是一樣的，都是使用到的WindowManager來繪制桌面小控件的原理。那我就不多說了…
一、首先我們需要一個SurfaceView：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/small_window_layout" android:layout_width="1dip" android:layout_height="1dip" > <FrameLayout android:id="@+id/percent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center" /></LinearLayout>
二、然后進行的操作就是生產這個小控件了：
public PhotoWindowSmallView(Context context) { super(context); windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); LayoutInflater.from(context).inflate(R.layout.float_window_small, this); View view = findViewById(R.id.small_window_layout); viewWidth = view.getLayoutParams().width; viewHeight = view.getLayoutParams().height;// SurfaceView percentView = (SurfaceView) findViewById(R.id.percent);// percentView.setText(MyWindowManager.getUsedPercentValue(context)); } /** * 將小懸浮窗的參數傳入，用于更新小懸浮窗的位置。 * * @param params 小懸浮窗的參數 */ public void setParams(WindowManager.LayoutParams params) { mParams = params; }三、那桌面控件有了，下面當然就是使用WindowManager添加到桌面上了：
/** * 創建一個小懸浮窗。初始位置為屏幕的右部中間位置。 * * @param context 必須為應用程序的Context. */ public void createSmallWindow(Context context) { mContext = context; WindowManager windowManager = getWindowManager(context); int screenWidth = windowManager.getDefaultDisplay().getWidth(); int screenHeight = windowManager.getDefaultDisplay().getHeight(); if (smallWindow == null) { smallWindow = new PhotoWindowSmallView(context); if (smallWindowParams == null) { smallWindowParams = new LayoutParams(); smallWindowParams.type = LayoutParams.TYPE_PHONE; smallWindowParams.format = PixelFormat.RGBA_8888; smallWindowParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL | LayoutParams.FLAG_NOT_FOCUSABLE; smallWindowParams.gravity = Gravity.LEFT | Gravity.TOP; smallWindowParams.width = PhotoWindowSmallView.viewWidth; smallWindowParams.height = PhotoWindowSmallView.viewHeight; smallWindowParams.x = screenWidth; smallWindowParams.y = screenHeight / 2; } smallWindow.setParams(smallWindowParams); windowManager.addView(smallWindow, smallWindowParams); mSurfaceview = (FrameLayout) smallWindow.findViewById(R.id.percent); } } /** * 將小懸浮窗從屏幕上移除。 * * @param context 必須為應用程序的Context. */ public void removeSmallWindow(Context context) { if (smallWindow != null) { WindowManager windowManager = getWindowManager(context); windowManager.removeView(smallWindow); smallWindow = null; } }四、這個時候我們需要的SurfaceView就有了，那么，怎么在后臺進行操作呢？自然而然就想到了Service了
在Service中執行桌面控件的操作：
@Override public int onStartCommand(Intent intent, int flags, int startId) { myWindowManager = new MyPhotoWindowManager(); createWindow(); return super.onStartCommand(intent, flags, startId); } @Override public void onDestroy() { super.onDestroy(); } private void createWindow() { // 當前界面是桌面，且沒有懸浮窗顯示，則創建懸浮窗。 myWindowManager.removeSmallWindow(getApplicationContext()); myWindowManager.createSmallWindow(getApplicationContext()); }五、在activity中對Service綁定，進行拍照的操作
private class MyServiceConn implements ServiceConnection { @Override public void onServiceConnected(ComponentName name, IBinder service) { // TODO Auto-generated method stub binder = (PhotoWindowService.myServiceBinder) service; if (isVedio) { binder.startCarema(); } else { binder.stopCarema(); } } @Override public void onServiceDisconnected(ComponentName name) { // TODO Auto-generated method stub } }六、在Service中控制myWindowManager中的拍照的開始和結束
public class myServiceBinder extends Binder { public void startCarema() { myWindowManager.startCarema(); } public void stopCarema() { myWindowManager.stopCarema(); } }七、在MyPhotoWindowManager開啟或終止拍照操作
public void startCarema() { itt = InitTimetoTakePic.getInstance(mContext); itt.initView(mSurfaceview); itt.start(); } public void stopCarema() { if (itt != null) itt.releaseCarema(); }八、在InitTimetoTakePic進行拍照的相關處理
package com.ddv.www.candidphotodemo;import android.annotation.TargetApi;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.pm.PackageManager;import android.hardware.Camera;import android.hardware.Camera.AutoFocusCallback;import android.hardware.Camera.PictureCallback;import android.os.Build;import android.os.Handler;import android.os.Message;import android.widget.FrameLayout;import java.io.File;import java.io.FileOutputStream;/** * 設置定時拍照功能 * * @author <p> * 創建定時拍照任務 * cameraType 攝像頭 * resolutionString 分辨率 * tvSaveLocation 保存地址 * etExtension 拓展名 * cameraStart, 開始拍攝時間 * cameraNumber, 拍攝次數 * cameraStop 拍攝張數 */public class InitTimetoTakePic { private static InitTimetoTakePic mInstance; private static int cameraType = 1; Context mContext; static FrameLayout mSurfaceViewFrame; private static Camera mCamera; private static CameraPreview mPreview; private static String resolutionString = "1920x1080"; private static String saveLocation = AppUtils.getSDCardPath(); private static String extension = "JPG"; private static String cameraStart = "1"; private static String cameraNumber = "1"; private static String cameraStop = "10"; private static int number = 0; private static boolean clearVoice = false; private Intent intent; private InitTimetoTakePic(Context context) { this.mContext = context; } public synchronized static InitTimetoTakePic getInstance(Context context) { mInstance = null; mInstance = new InitTimetoTakePic(context); return mInstance; } public void initView(FrameLayout surfaceViewFrame) { mSurfaceViewFrame = surfaceViewFrame; } /** * 啟動定時拍照并上傳功能 */ Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case 1: LogUtils.v("開始拍照"); initCarema(); break; case 2: if (mCamera == null) { releaseCarema(); number = 0; mHandler.removeCallbacksAndMessages(null); } else { if (number < Integer.valueOf(cameraStop)) { mCamera.autoFocus(new AutoFocusCallback() { @Override public void onAutoFocus(boolean success, Camera camera) { // 從Camera捕獲圖片 LogUtils.v("自動聚焦111" + success); try { mCamera.takePicture(null, null, mPicture); mHandler.sendEmptyMessageDelayed(1, Integer.valueOf(cameraNumber) * 1000); } catch (Exception e) { releaseCarema(); mHandler.removeCallbacksAndMessages(null); } } }); } else { releaseCarema(); number = 0; mHandler.removeCallbacksAndMessages(null); } } break; } } }; public void start() { mHandler.sendEmptyMessageDelayed(1, 1 * 1000); //7s 后開始啟動相機 } private void initCarema() { LogUtils.v("initCarema"); if (mCamera == null) { LogUtils.v("camera=null"); mCamera = getCameraInstance(); mPreview = new CameraPreview(mContext, mCamera); mSurfaceViewFrame.removeAllViews(); mSurfaceViewFrame.addView(mPreview); } LogUtils.v(mCamera == null ? "mCamera is null" : "mCamera is not null"); mCamera.startPreview(); mHandler.sendEmptyMessageDelayed(2, Integer.valueOf(cameraStart) * 1000); //3s后拍照 } /** * 檢測設備是否存在Camera硬件 */ private boolean checkCameraHardware(Context context) { if (context.getPackageManager().hasSystemFeature( PackageManager.FEATURE_CAMERA)) { // 存在 return true; } else { // 不存在 return false; } } /** * 打開一個Camera */ @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) public static Camera getCameraInstance() { Camera c = null; try { c = Camera.open(cameraType); c.setDisplayOrientation(90); Camera.Parameters mParameters = c.getParameters(); //快門聲音 c.enableShutterSound(clearVoice); //可以用得到當前所支持的照片大小，然后 //List<Size> ms = mParameters.getSupportedPictureSizes(); //mParameters.setPictureSize(ms.get(0).width, ms.get(0).height); //默認最大拍照取最大清晰度的照片 String[] xes = resolutionString.split("x"); // LogUtils.i("ms.get(0).width==>"+ms.get(0).width); // LogUtils.i("ms.get(0).height==>"+ms.get(0).height); // LogUtils.i("Integer.valueOf(xes[0])==>"+Integer.valueOf(xes[0])); // LogUtils.i("Integer.valueOf(xes[1])==>"+Integer.valueOf(xes[1])); mParameters.setPictureSize(Integer.valueOf(xes[0]), Integer.valueOf(xes[1])); //默認最大拍照取最大清晰度的照片 c.setParameters(mParameters); } catch (Exception e) { LogUtils.v("打開Camera失敗失敗"); } return c; } private PictureCallback mPicture = new PictureCallback() { @Override public void onPictureTaken(byte[] data, Camera camera) { // 獲取Jpeg圖片，并保存在sd卡上 String path = saveLocation; File dirF = new File(path); if (!dirF.exists()) { dirF.mkdirs(); } File pictureFile = new File(path + "/" + System.currentTimeMillis() + "." + extension);//擴展名 try { FileOutputStream fos = new FileOutputStream(pictureFile); fos.write(data); fos.close(); LogUtils.v("保存圖成功"); number++; intent = new Intent(); intent.setAction("CameraFragment.start"); intent.putExtra("number", number); mContext.sendBroadcast(intent); } catch (Exception e) { LogUtils.v("保存圖片失敗"); e.printStackTrace(); } releaseCarema(); } }; public void releaseCarema() { if (mCamera != null) { mCamera.stopPreview(); mCamera.release(); mCamera = null; } }}demo下載地址：//m.survivalescaperooms.com/softs/519032.html
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