{"id":29297,"date":"2024-11-25T15:35:12","date_gmt":"2024-11-25T07:35:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/29297\/"},"modified":"2024-11-25T15:35:12","modified_gmt":"2024-11-25T07:35:12","slug":"%e4%bd%bf%e7%94%a8android%e5%ae%9e%e7%8e%b0%e5%be%ae%e4%bf%a1%e5%b0%8f%e8%a7%86%e9%a2%91%e5%bd%95%e5%88%b6%e5%8a%9f%e8%83%bd%e8%af%a6%e7%bb%86%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/29297\/","title":{"rendered":"\u4f7f\u7528Android\u5b9e\u73b0\u5fae\u4fe1\u5c0f\u89c6\u9891\u5f55\u5236\u529f\u80fd\u8be6\u7ec6\u4ecb\u7ecd"},"content":{"rendered":"

\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4ecb\u7ecd\u4e86android \u5fae\u4fe1\u5c0f\u89c6\u9891\u5f55\u5236\u529f\u80fd\u5b9e\u73b0\u8be6\u89e3\u7684\u76f8\u5173\u8d44\u6599,\u8fd9\u91cc\u63d0\u4f9b\u4e86\u5177\u4f53\u7684\u5b9e\u73b0\u601d\u8def\u53ca\u4ee3\u7801\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e0b<\/p>\n

Android \u5fae\u4fe1\u5c0f\u89c6\u9891\u5f55\u5236\u529f\u80fd<\/strong><\/p>\n

\u5f00\u53d1\u4e4b\u524d<\/p>\n

\u8fd9\u51e0\u5929\u63a5\u89e6\u4e86\u4e00\u4e0b\u548c\u89c6\u9891\u76f8\u5173\u7684\u63a7\u4ef6, \u6240\u4ee5, \u7ee7\u4e4b\u524d\u7684\u5fae\u4fe1\u6447\u4e00\u6447, \u6211\u60f3\u5230\u4e86\u6765\u5b9e\u73b0\u4e00\u4e0b\u5fae\u4fe1\u5c0f\u89c6\u9891\u5f55\u5236\u7684\u529f\u80fd, \u5b83\u7684\u529f\u80fd\u70b9\u6bd4\u8f83\u591a, \u6211\u6bcf\u5929\u90fd\u62bd\u51fa\u70b9\u65f6\u95f4\u6765\u5199\u5199, \u8bf4\u5b9e\u8bdd, \u6709\u4e9b\u4e1c\u897f\u8fd8\u662f\u6bd4\u8f83\u8d39\u52b2, \u5e0c\u671b\u5927\u5bb6\u8ba4\u771f\u770b\u770b, \u8bf4\u5f97\u4e0d\u5bf9\u7684\u5730\u65b9\u8fd8\u8bf7\u5927\u5bb6\u5728\u8bc4\u8bba\u4e2d\u6307\u6b63. \u5e9f\u8bdd\u4e0d\u591a\u8bf4, \u8fdb\u5165\u6b63\u9898.<\/p>\n

\u5f00\u53d1\u73af\u5883<\/p>\n

\u70b9\u51fb\u4e0b\u8f7d<\/span>\u201c\u201d\uff1b<\/p>\n

\u6700\u8fd1\u521a\u66f4\u65b0\u7684, \u6ca1\u66f4\u65b0\u7684\u5c0f\u4f19\u4f34\u4eec\u6293\u7d27\u4e86<\/p>\n

    \n
  1. \n

    Android Studio 2.2.2<\/p>\n<\/li>\n

  2. \n

    JDK1.7<\/p>\n<\/li>\n

  3. \n

    API 24<\/p>\n<\/li>\n

  4. \n

    Gradle 2.2.2<\/p>\n<\/li>\n<\/ol>\n

    \u76f8\u5173\u77e5\u8bc6\u70b9<\/p>\n

      \n
    1. \n

      \u89c6\u9891\u5f55\u5236\u754c\u9762 SurfaceView \u7684\u4f7f\u7528<\/p>\n<\/li>\n

    2. \n

      Camera\u7684\u4f7f\u7528<\/p>\n<\/li>\n

    3. \n

      \u76f8\u673a\u7684\u5bf9\u7126, \u53d8\u7126<\/p>\n<\/li>\n

    4. \n

      \u89c6\u9891\u5f55\u5236\u63a7\u4ef6MediaRecorder\u7684\u4f7f\u7528<\/p>\n<\/li>\n

    5. \n

      \u7b80\u5355\u81ea\u5b9a\u4e49View<\/p>\n<\/li>\n

    6. \n

      GestureDetector(\u624b\u52bf\u68c0\u6d4b)\u7684\u4f7f\u7528<\/p>\n<\/li>\n<\/ol>\n

      \u7528\u5230\u7684\u4e1c\u897f\u771f\u4e0d\u5c11, \u4e0d\u8fc7\u522b\u7740\u6025, \u54b1\u4eec\u4e00\u4e2a\u4e00\u4e2a\u6765.<\/p>\n

      \u5f00\u59cb\u5f00\u53d1<\/p>\n

      \u6848\u4f8b\u5206\u6790<\/strong><\/p>\n

      \u5927\u5bb6\u53ef\u4ee5\u6253\u5f00\u81ea\u5df1\u5fae\u4fe1\u91cc\u9762\u7684\u5c0f\u89c6\u9891, \u4e00\u5757\u7b80\u5355\u7684\u5206\u6790\u4e00\u4e0b\u5b83\u7684\u529f\u80fd\u70b9\u6709\u54ea\u4e9b ?<\/p>\n

        \n
      1. \n

        \u57fa\u672c\u7684\u89c6\u9891\u9884\u89c8\u529f\u80fd<\/p>\n<\/li>\n

      2. \n

        \u957f\u6309 \u201c\u6309\u4f4f\u62cd\u201d \u5b9e\u73b0\u89c6\u9891\u7684\u5f55\u5236<\/p>\n<\/li>\n

      3. \n

        \u5f55\u5236\u8fc7\u7a0b\u4e2d\u7684\u8fdb\u5ea6\u6761\u4ece\u4e24\u4fa7\u5411\u4e2d\u95f4\u53d8\u77ed<\/p>\n<\/li>\n

      4. \n

        \u5f53\u677e\u624b\u6216\u8005\u8fdb\u5ea6\u6761\u8d70\u5230\u5c3d\u5934\u89c6\u9891\u505c\u6b62\u5f55\u5236 \u5e76\u4fdd\u5b58<\/p>\n<\/li>\n

      5. \n

        \u4ece \u201c\u6309\u4f4f\u62cd\u201d \u4e0a\u6ed1\u53d6\u6d88\u89c6\u9891\u7684\u5f55\u5236<\/p>\n<\/li>\n

      6. \n

        \u53cc\u51fb\u5c4f\u5e55 \u53d8\u7126 \u653e\u5927<\/p>\n<\/li>\n<\/ol>\n

        \u6839\u636e\u4e0a\u8ff0\u7684\u5206\u6790, \u6211\u4eec\u4e00\u6b65\u4e00\u6b65\u7684\u5b8c\u6210<\/p>\n

        \u642d\u5efa\u5e03\u5c40<\/strong><\/p>\n

        \u5e03\u5c40\u754c\u9762\u7684\u5b9e\u73b0\u8fd8\u53ef\u4ee5, \u96be\u5ea6\u4e0d\u5927<\/p>\n

        <\/p>\n

        <?xml  version=\"1.0\" encoding=\"utf-8\"?><framelayout>\r\n  <textview><\/textview>\r\n  <linearlayout>\r\n    <surfaceview><\/surfaceview>\r\n    <linearlayout>\r\n      <relativelayout>\r\n        <com.lulu.weichatsamplevideo.bothwayprogressbar><\/com.lulu.weichatsamplevideo.bothwayprogressbar>\r\n        <textview><\/textview>\r\n      <\/relativelayout>\r\n    <\/linearlayout>\r\n  <\/linearlayout><\/framelayout><\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u89c6\u9891\u9884\u89c8\u7684\u5b9e\u73b0<\/strong><\/p>\n
        step1: \u5f97\u5230SufaceView\u63a7\u4ef6, \u8bbe\u7f6e\u57fa\u672c\u5c5e\u6027\u548c\u76f8\u5e94\u76d1\u542c(\u8be5\u63a7\u4ef6\u7684\u521b\u5efa\u662f\u5f02\u6b65\u7684, \u53ea\u6709\u5728\u771f\u6b63\u201d\u51c6\u5907\u201d\u597d\u4e4b\u540e\u624d\u80fd\u8c03\u7528)<\/p>\n
        <\/p>\n
        mSurfaceView = (SurfaceView) findViewById(R.id.main_surface_view);\r\n \/\/\u8bbe\u7f6e\u5c4f\u5e55\u5206\u8fa8\u7387\r\nmSurfaceHolder.setFixedSize(videoWidth, videoHeight);\r\nmSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);\r\nmSurfaceHolder.addCallback(this);<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        step2: \u5b9e\u73b0\u63a5\u53e3\u7684\u65b9\u6cd5, surfaceCreated\u65b9\u6cd5\u4e2d\u5f00\u542f\u89c6\u9891\u7684\u9884\u89c8, \u5728surfaceDestroyed\u4e2d\u9500\u6bc1<\/p>\n
        <\/p>\n
        \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\n\/\/ SurfaceView\u56de\u8c03\r\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\n@Override\r\npublic void surfaceCreated(SurfaceHolder holder) {\r\n  mSurfaceHolder = holder;\r\n  startPreView(holder);\r\n}\r\n@Override\r\npublic void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {\r\n\r\n}\r\n\r\n@Override\r\npublic void surfaceDestroyed(SurfaceHolder holder) {\r\n  if (mCamera != null) {\r\n    Log.d(TAG, \"surfaceDestroyed: \");\r\n    \/\/\u505c\u6b62\u9884\u89c8\u5e76\u91ca\u653e\u6444\u50cf\u5934\u8d44\u6e90\r\n    mCamera.stopPreview();\r\n    mCamera.release();\r\n    mCamera = null;\r\n  }\r\n  if (mMediaRecorder != null) {\r\n    mMediaRecorder.release();\r\n    mMediaRecorder = null;\r\n  }\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        step3: \u5b9e\u73b0\u89c6\u9891\u9884\u89c8\u7684\u65b9\u6cd5<\/p>\n
        <\/p>\n
        \/**\r\n * \u5f00\u542f\u9884\u89c8\r\n *\r\n * @param holder\r\n *\/\r\nprivate void startPreView(SurfaceHolder holder) {\r\n  Log.d(TAG, \"startPreView: \");\r\n\r\n  if (mCamera == null) {\r\n    mCamera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK);\r\n  }\r\n  if (mMediaRecorder == null) {\r\n    mMediaRecorder = new MediaRecorder();\r\n  }\r\n  if (mCamera != null) {\r\n    mCamera.setDisplayOrientation(90);\r\n    try {\r\n      mCamera.setPreviewDisplay(holder);\r\n      Camera.Parameters parameters = mCamera.getParameters();\r\n      \/\/\u5b9e\u73b0Camera\u81ea\u52a8\u5bf9\u7126\r\n      List<string> focusModes = parameters.getSupportedFocusModes();\r\n      if (focusModes != null) {\r\n        for (String mode : focusModes) {\r\n          mode.contains(\"continuous-video\");\r\n          parameters.setFocusMode(\"continuous-video\");\r\n        }\r\n      }\r\n      mCamera.setParameters(parameters);\r\n      mCamera.startPreview();\r\n    } catch (IOException e) {\r\n      e.printStackTrace();\r\n    }\r\n  }\r\n\r\n}<\/string><\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        Note: \u4e0a\u9762\u6dfb\u52a0\u4e86\u81ea\u52a8\u5bf9\u7126\u7684\u4ee3\u7801, \u4f46\u662f\u90e8\u5206\u624b\u673a\u53ef\u80fd\u4e0d\u652f\u6301<\/p>\n
        \u81ea\u5b9a\u4e49\u53cc\u5411\u7f29\u51cf\u7684\u8fdb\u5ea6\u6761<\/strong><\/p>\n
        \u6709\u4e9b\u50cf\u6211\u4e00\u6837\u7684\u521d\u5b66\u8005\u4e00\u770b\u5230\u81ea\u5b9a\u4e49\u67d0\u67d0View, \u5c31\u89c9\u5f97\u6bd4\u8f83\u725bX. \u5176\u5b9e\u5462, Google\u5df2\u7ecf\u66ff\u6211\u4eec\u5199\u597d\u4e86\u5f88\u591a\u4ee3\u7801, \u6240\u4ee5\u6211\u4eec\u7528\u5c31\u884c\u4e86.\u800c\u4e14\u54b1\u4eec\u7684\u8fd9\u4e2a\u8fdb\u5ea6\u6761\u4e5f\u6ca1\u5565, \u4e0d\u5c31\u662f\u4e00\u6839\u7ebf, \u4eca\u5929\u54b1\u5c31\u6765\u8bf4\u8bf4.<\/p>\n
        step1: \u7ee7\u627fView, \u5b8c\u6210\u521d\u59cb\u5316<\/p>\n
        <\/p>\n
        private static final String TAG = \"BothWayProgressBar\";\r\n\/\/\u53d6\u6d88\u72b6\u6001\u4e3a\u7ea2\u8272bar, \u53cd\u4e4b\u4e3a\u7eff\u8272bar\r\nprivate boolean isCancel = false;\r\nprivate Context mContext;\r\n\/\/\u6b63\u5728\u5f55\u5236\u7684\u753b\u7b14\r\nprivate Paint mRecordPaint;\r\n\/\/\u4e0a\u6ed1\u53d6\u6d88\u65f6\u7684\u753b\u7b14\r\nprivate Paint mCancelPaint;\r\n\/\/\u662f\u5426\u663e\u793a\r\nprivate int mVisibility;\r\n\/\/ \u5f53\u524d\u8fdb\u5ea6\r\nprivate int progress;\r\n\/\/\u8fdb\u5ea6\u6761\u7ed3\u675f\u7684\u76d1\u542c\r\nprivate OnProgressEndListener mOnProgressEndListener;\r\n\r\npublic BothWayProgressBar(Context context) {\r\n   super(context, null);\r\n}\r\npublic BothWayProgressBar(Context context, AttributeSet attrs) {\r\n  super(context, attrs);\r\n  mContext = context;\r\n  init();\r\n}\r\nprivate void init() {\r\n  mVisibility = INVISIBLE;\r\n  mRecordPaint = new Paint();\r\n  mRecordPaint.setColor(Color.GREEN);\r\n  mCancelPaint = new Paint();\r\n  mCancelPaint.setColor(Color.RED);\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        Note: OnProgressEndListener, \u4e3b\u8981\u7528\u4e8e\u5f53\u8fdb\u5ea6\u6761\u8d70\u5230\u4e2d\u95f4\u4e86, \u597d\u901a\u77e5\u76f8\u673a\u505c\u6b62\u5f55\u5236, \u63a5\u53e3\u5982\u4e0b:<\/p>\n
        <\/p>\n
        public interface OnProgressEndListener{\r\n  void onProgressEndListener();\r\n}\r\n\/**\r\n * \u5f53\u8fdb\u5ea6\u6761\u7ed3\u675f\u540e\u7684 \u76d1\u542c\r\n * @param onProgressEndListener\r\n *\/\r\npublic void setOnProgressEndListener(OnProgressEndListener onProgressEndListener) {\r\n  mOnProgressEndListener = onProgressEndListener;\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        step2 :\u8bbe\u7f6eSetter\u65b9\u6cd5\u7528\u4e8e\u901a\u77e5\u6211\u4eec\u7684Progress\u6539\u53d8\u72b6\u6001<\/p>\n
        <\/p>\n
        \/**\r\n * \u8bbe\u7f6e\u8fdb\u5ea6\r\n * @param progress\r\n *\/\r\npublic void setProgress(int progress) {\r\n  this.progress = progress;\r\n  invalidate();\r\n}\r\n\r\n\/**\r\n * \u8bbe\u7f6e\u5f55\u5236\u72b6\u6001 \u662f\u5426\u4e3a\u53d6\u6d88\u72b6\u6001\r\n * @param isCancel\r\n *\/\r\npublic void setCancel(boolean isCancel) {\r\n  this.isCancel = isCancel;\r\n  invalidate();\r\n}\r\n\/**\r\n * \u91cd\u5199\u662f\u5426\u53ef\u89c1\u65b9\u6cd5\r\n * @param visibility\r\n *\/\r\n@Override\r\npublic void setVisibility(int visibility) {\r\n  mVisibility = visibility;\r\n  \/\/\u91cd\u65b0\u7ed8\u5236\r\n  invalidate();\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        step3 :\u6700\u91cd\u8981\u7684\u4e00\u6b65, \u753b\u51fa\u6211\u4eec\u7684\u8fdb\u5ea6\u6761,\u4f7f\u7528\u7684\u5c31\u662fView\u4e2d\u7684onDraw(Canvas canvas)\u65b9\u6cd5<\/p>\n
        <\/p>\n
        @Override\r\nprotected void onDraw(Canvas canvas) {\r\n  super.onDraw(canvas);\r\n  if (mVisibility == View.VISIBLE) {\r\n    int height = getHeight();\r\n    int width = getWidth();\r\n    int mid = width \/ 2;\r\n\r\n\r\n    \/\/\u753b\u51fa\u8fdb\u5ea6\u6761\r\n    if (progress <p>\u5f55\u5236\u4e8b\u4ef6\u7684\u5904\u7406<\/p><p>\u5f55\u5236\u4e2d\u89e6\u53d1\u7684\u4e8b\u4ef6\u5305\u62ec\u56db\u4e2a:<\/p><ol class=\" list-paddingleft-2\">\n<li><p>\u957f\u6309\u5f55\u5236<\/p><\/li>\n<li><p>\u62ac\u8d77\u4fdd\u5b58<\/p><\/li>\n<li><p>\u4e0a\u6ed1\u53d6\u6d88<\/p><\/li>\n<li><p>\u53cc\u51fb\u653e\u5927(\u53d8\u7126) <\/p><\/li>\n<\/ol><p> \u73b0\u5728\u5bf9\u8fd94\u4e2a\u4e8b\u4ef6\u9010\u4e2a\u5206\u6790: <br>\u524d\u4e09\u8fd9\u4e2a\u4e8b\u4ef6, \u6211\u90fd\u653e\u5728\u4e86\u4e00\u4e2aonTouch()\u56de\u8c03\u65b9\u6cd5\u4e2d\u4e86 <br>\u5bf9\u4e8e\u7b2c4\u4e2a, \u6211\u4eec\u5f85\u4f1a\u8c08 <br>\u6211\u4eec\u5148\u628aonTouch()\u4e2d\u5c40\u90e8\u53d8\u91cf\u5217\u4e3e\u4e00\u4e0b:<\/p><p class=\"jb51code\"><br><\/p><pre class=\"brush:java;\">@Override\r\npublic boolean onTouch(View v, MotionEvent event) {\r\n  boolean ret = false;\r\n  int action = event.getAction();\r\n  float ey = event.getY();\r\n  float ex = event.getX();\r\n  \/\/\u53ea\u76d1\u542c\u4e2d\u95f4\u7684\u6309\u94ae\u5904\r\n  int vW = v.getWidth();\r\n  int left = LISTENER_START;\r\n  int right = vW - LISTENER_START;\r\n  float downY = 0;\r\n  \/\/ ...\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u957f\u6309\u5f55\u5236<\/strong><\/p>\n
        \u957f\u6309\u5f55\u5236\u6211\u4eec\u9700\u8981\u76d1\u542cACTION_DOWN\u4e8b\u4ef6, \u4f7f\u7528\u7ebf\u7a0b\u5ef6\u8fdf\u53d1\u9001Handler\u6765\u5b9e\u73b0\u8fdb\u5ea6\u6761\u7684\u66f4\u65b0<\/p>\n
        <\/p>\n
        switch (action) {\r\n case MotionEvent.ACTION_DOWN:\r\n   if (ex &gt; left &amp;&amp; ex <p>Note: startRecord()\u8fd9\u4e2a\u65b9\u6cd5\u5148\u4e0d\u8bf4, \u6211\u4eec\u53ea\u9700\u8981\u77e5\u9053\u6267\u884c\u4e86\u5b83\u5c31\u53ef\u4ee5\u5f55\u5236\u4e86, \u4f46\u662fHandler\u4e8b\u4ef6\u8fd8\u662f\u8981\u8bf4\u7684, \u5b83\u53ea\u8d1f\u8d23\u66f4\u65b0\u8fdb\u5ea6\u6761\u7684\u8fdb\u5ea6<\/p><p class=\"jb51code\"><br><\/p><pre class=\"brush:java;\">\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\n\/\/ Handler\u5904\u7406\r\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\nprivate static class MyHandler extends Handler {\r\n  private WeakReference<mainactivity> mReference;\r\n  private MainActivity mActivity;\r\n\r\n  public MyHandler(MainActivity activity) {\r\n    mReference = new WeakReference<mainactivity>(activity);\r\n    mActivity = mReference.get();\r\n  }\r\n\r\n  @Override\r\n  public void handleMessage(Message msg) {\r\n    switch (msg.what) {\r\n      case 0:\r\n        mActivity.mProgressBar.setProgress(mActivity.mProgress);\r\n        break;\r\n    }\r\n  }\r\n}<\/mainactivity><\/mainactivity><\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u62ac\u8d77\u4fdd\u5b58<\/strong><\/p>\n
        \u540c\u6837\u6211\u4eec\u8fd9\u513f\u9700\u8981\u76d1\u542cACTION_UP\u4e8b\u4ef6, \u4f46\u662f\u8981\u8003\u8651\u5f53\u7528\u6237\u62ac\u8d77\u8fc7\u5feb\u65f6(\u5f55\u5236\u7684\u65f6\u95f4\u8fc7\u77ed), \u4e0d\u9700\u8981\u4fdd\u5b58. \u800c\u4e14, \u5728\u8fd9\u4e2a\u4e8b\u4ef6\u4e2d\u5305\u542b\u4e86\u53d6\u6d88\u72b6\u6001\u7684\u62ac\u8d77, \u89e3\u91ca\u4e00\u4e0b: \u5c31\u662f\u5f53\u4e0a\u6ed1\u53d6\u6d88\u65f6\u62ac\u8d77\u7684\u4e00\u77ac\u95f4\u53d6\u6d88\u5f55\u5236, \u5927\u5bb6\u770b\u4ee3\u7801<\/p>\n
        <\/p>\n
        case MotionEvent.ACTION_UP:\r\n if (ex &gt; left &amp;&amp; ex <p>Note: \u540c\u6837\u7684, \u5185\u90e8\u7684stopRecordUnSave()\u548cstopRecordSave();\u5927\u5bb6\u5148\u4e0d\u8981\u8003\u8651, \u6211\u4eec\u4f1a\u5728\u540e\u9762\u4ecb\u7ecd, \u4ed6\u4fe9\u4ece\u540d\u5b57\u5c31\u80fd\u770b\u51fa \u524d\u8005\u7528\u6765\u505c\u6b62\u5f55\u5236\u4f46\u4e0d\u4fdd\u5b58, \u540e\u8005\u505c\u6b62\u5f55\u5236\u5e76\u4fdd\u5b58<br><\/p><p><strong>\u4e0a\u6ed1\u53d6\u6d88<\/strong><\/p><p>\u914d\u5408\u4e0a\u4e00\u90e8\u5206\u8bf4\u5f97\u62ac\u8d77\u53d6\u6d88\u4e8b\u4ef6, \u5b9e\u73b0\u4e0a\u6ed1\u53d6\u6d88<\/p><p class=\"jb51code\"><br><\/p><pre class=\"brush:java;\">case MotionEvent.ACTION_MOVE:\r\n if (ex &gt; left &amp;&amp; ex  10) {\r\n     isCancel = true;\r\n     mProgressBar.setCancel(true);\r\n   }\r\n }\r\n break;<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        Note: \u4e3b\u8981\u539f\u7406\u4e0d\u96be, \u53ea\u8981\u6309\u4e0b\u5e76\u4e14\u5411\u4e0a\u79fb\u52a8\u4e00\u5b9a\u8ddd\u79bb \u5c31\u4f1a\u89e6\u53d1,\u5f53\u624b\u62ac\u8d77\u65f6\u89c6\u9891\u5f55\u5236\u53d6\u6d88<\/p>\n
        \u53cc\u51fb\u653e\u5927(\u53d8\u7126)<\/strong><\/p>\n
        \u8fd9\u4e2a\u4e8b\u4ef6\u6bd4\u8f83\u7279\u6b8a, \u4f7f\u7528\u4e86Google\u63d0\u4f9b\u7684GestureDetector\u624b\u52bf\u68c0\u6d4b \u6765\u5224\u65ad\u53cc\u51fb\u4e8b\u4ef6<\/p>\n
        step1: \u5bf9SurfaceView\u8fdb\u884c\u5355\u72ec\u7684Touch\u4e8b\u4ef6\u76d1\u542c, why? \u56e0\u4e3aGestureDetector\u9700\u8981Touch\u4e8b\u4ef6\u7684\u5b8c\u5168\u6258\u7ba1, \u5982\u679c\u53ea\u7ed9\u5b83\u4f20\u90e8\u5206\u4e8b\u4ef6\u4f1a\u9020\u6210\u67d0\u4e9b\u4e8b\u4ef6\u5931\u6548<\/p>\n
        <\/p>\n
        mDetector = new GestureDetector(this, new ZoomGestureListener());\r\n\/**\r\n * \u5355\u72ec\u5904\u7406mSurfaceView\u7684\u53cc\u51fb\u4e8b\u4ef6\r\n *\/\r\nmSurfaceView.setOnTouchListener(new View.OnTouchListener() {\r\n  @Override\r\n  public boolean onTouch(View v, MotionEvent event) {\r\n    mDetector.onTouchEvent(event);\r\n    return true;\r\n  }\r\n});<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        step2: \u91cd\u5199GestureDetector.SimpleOnGestureListener, \u5b9e\u73b0\u53cc\u51fb\u4e8b\u4ef6<\/p>\n
        <\/p>\n
        \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\n\/\/ \u53d8\u7126\u624b\u52bf\u5904\u7406\u7c7b\r\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\nclass ZoomGestureListener extends GestureDetector.SimpleOnGestureListener {\r\n  \/\/\u53cc\u51fb\u624b\u52bf\u4e8b\u4ef6\r\n  @Override\r\n  public boolean onDoubleTap(MotionEvent e) {\r\n    super.onDoubleTap(e);\r\n    Log.d(TAG, \"onDoubleTap: \u53cc\u51fb\u4e8b\u4ef6\");\r\n    if (mMediaRecorder != null) {\r\n      if (!isZoomIn) {\r\n        setZoom(20);\r\n        isZoomIn = true;\r\n      } else {\r\n        setZoom(0);\r\n        isZoomIn = false;\r\n      }\r\n    }\r\n    return true;\r\n  }\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        step3: \u5b9e\u73b0\u76f8\u673a\u7684\u53d8\u7126\u7684\u65b9\u6cd5<\/p>\n
        <\/p>\n
        \/**\r\n * \u76f8\u673a\u53d8\u7126\r\n *\r\n * @param zoomValue\r\n *\/\r\npublic void setZoom(int zoomValue) {\r\n  if (mCamera != null) {\r\n    Camera.Parameters parameters = mCamera.getParameters();\r\n    if (parameters.isZoomSupported()) {\/\/\u5224\u65ad\u662f\u5426\u652f\u6301\r\n      int maxZoom = parameters.getMaxZoom();\r\n      if (maxZoom == 0) {\r\n        return;\r\n      }\r\n      if (zoomValue &gt; maxZoom) {\r\n        zoomValue = maxZoom;\r\n      }\r\n      parameters.setZoom(zoomValue);\r\n      mCamera.setParameters(parameters);\r\n    }\r\n  }\r\n\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        Note: \u81f3\u6b64\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86\u5bf9\u6240\u6709\u4e8b\u4ef6\u7684\u76d1\u542c, \u770b\u5230\u8fd9\u91cc\u5927\u5bb6\u4e5f\u8bb8\u6709\u4e9b\u75b2\u60eb\u4e86, \u4e0d\u8fc7\u4e0d\u8981\u7070\u5fc3, \u73b0\u5728\u5b8c\u6210\u6211\u4eec\u7684\u6838\u5fc3\u90e8\u5206, \u5b9e\u73b0\u89c6\u9891\u7684\u5f55\u5236<\/p>\n
        \u5b9e\u73b0\u89c6\u9891\u7684\u5f55\u5236<\/strong><\/p>\n
        \u8bf4\u662f\u6838\u5fc3\u529f\u80fd, \u4e5f\u53ea\u4e0d\u8fc7\u662f\u6211\u4eec\u4e0d\u77e5\u9053\u67d0\u4e9bAPI\u65b9\u6cd5\u7f62\u4e86, \u4e0b\u9762\u4ee3\u7801\u4e2d\u6211\u5df2\u7ecf\u52a0\u4e86\u8be6\u7ec6\u7684\u6ce8\u91ca, \u90e8\u5206\u4e0d\u80fd\u7406\u89e3\u7684\u8bb0\u4f4f\u5c31\u597d^v^<\/p>\n
        <\/p>\n
        \/**\r\n * \u5f00\u59cb\u5f55\u5236\r\n *\/\r\nprivate void startRecord() {\r\n  if (mMediaRecorder != null) {\r\n    \/\/\u6ca1\u6709\u5916\u7f6e\u5b58\u50a8, \u76f4\u63a5\u505c\u6b62\u5f55\u5236\r\n    if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {\r\n      return;\r\n    }\r\n    try {\r\n      \/\/mMediaRecorder.reset();\r\n      mCamera.unlock();\r\n      mMediaRecorder.setCamera(mCamera);\r\n      \/\/\u4ece\u76f8\u673a\u91c7\u96c6\u89c6\u9891\r\n      mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);\r\n      \/\/ \u4ece\u9ea6\u514b\u91c7\u96c6\u97f3\u9891\u4fe1\u606f\r\n      mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);\r\n      \/\/ TODO: 2016\/10\/20 \u8bbe\u7f6e\u89c6\u9891\u683c\u5f0f\r\n      mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);\r\n      mMediaRecorder.setVideoSize(videoWidth, videoHeight);\r\n      \/\/\u6bcf\u79d2\u7684\u5e27\u6570\r\n      mMediaRecorder.setVideoFrameRate(24);\r\n      \/\/\u7f16\u7801\u683c\u5f0f\r\n      mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);\r\n      mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);\r\n      \/\/ \u8bbe\u7f6e\u5e27\u9891\u7387\uff0c\u7136\u540e\u5c31\u6e05\u6670\u4e86\r\n      mMediaRecorder.setVideoEncodingBitRate(1 * 1024 * 1024 * 100);\r\n      \/\/ TODO: 2016\/10\/20 \u4e34\u65f6\u5199\u4e2a\u6587\u4ef6\u5730\u5740, \u7a0d\u5019\u8be5!!!\r\n      File targetDir = Environment.\r\n          getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);\r\n      mTargetFile = new File(targetDir,\r\n          SystemClock.currentThreadTimeMillis() + \".mp4\");\r\n      mMediaRecorder.setOutputFile(mTargetFile.getAbsolutePath());\r\n      mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());\r\n      mMediaRecorder.prepare();\r\n      \/\/\u6b63\u5f0f\u5f55\u5236\r\n      mMediaRecorder.start();\r\n      isRecording = true;\r\n    } catch (Exception e) {\r\n      e.printStackTrace();\r\n    }\r\n\r\n  }\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u5b9e\u73b0\u89c6\u9891\u7684\u505c\u6b62<\/strong><\/p>\n
        \u5927\u5bb6\u53ef\u80fd\u4f1a\u95ee, \u89c6\u9891\u7684\u505c\u6b62\u4e3a\u4ec0\u4e48\u5355\u72ec\u62bd\u51fa\u6765\u8bf4\u5462? \u4ed4\u7ec6\u7684\u540c\u5b66\u770b\u4e0a\u9762\u4ee3\u7801\u4f1a\u770b\u5230\u8fd9\u4e24\u4e2a\u65b9\u6cd5: stopRecordSave\u548cstopRecordUnSave, \u4e00\u4e2a\u505c\u6b62\u4fdd\u5b58, \u4e00\u4e2a\u662f\u505c\u6b62\u4e0d\u4fdd\u5b58, \u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u8865\u4e0a\u8fd9\u4e2a\u5751<\/p>\n
        \u505c\u6b62\u5e76\u4fdd\u5b58<\/strong><\/p>\n
        <\/p>\n
        private void stopRecordSave() {\r\n  if (isRecording) {\r\n    isRunning = false;\r\n    mMediaRecorder.stop();\r\n    isRecording = false;\r\n    Toast.makeText(this, \"\u89c6\u9891\u5df2\u7ecf\u653e\u81f3\" + mTargetFile.getAbsolutePath(), Toast.LENGTH_SHORT).show();\r\n  }\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u505c\u6b62\u4e0d\u4fdd\u5b58<\/strong><\/p>\n
        <\/p>\n
        private void stopRecordUnSave() {\r\n  if (isRecording) {\r\n    isRunning = false;\r\n    mMediaRecorder.stop();\r\n    isRecording = false;\r\n    if (mTargetFile.exists()) {\r\n      \/\/\u4e0d\u4fdd\u5b58\u76f4\u63a5\u5220\u6389\r\n      mTargetFile.delete();\r\n    }\r\n  }\r\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        Note: \u8fd9\u4e2a\u505c\u6b62\u4e0d\u4fdd\u5b58\u662f\u6211\u81ea\u5df1\u7684\u4e00\u79cd\u60f3\u6cd5, \u5982\u679c\u5927\u5bb6\u6709\u66f4\u597d\u7684\u60f3\u6cd5, \u6b22\u8fce\u5927\u5bb6\u5230\u8bc4\u8bba\u4e2d\u6307\u51fa, \u4e0d\u80dc\u611f\u6fc0<\/p>\n
        \u4ee5\u4e0a\u5c31\u662f\u4f7f\u7528Android\u5b9e\u73b0\u5fae\u4fe1\u5c0f\u89c6\u9891\u5f55\u5236\u529f\u80fd\u8be6\u7ec6\u4ecb\u7ecd\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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