Example usage for android.view GestureDetector GestureDetector

Introduction

In this page you can find the example usage for android.view GestureDetector GestureDetector.

Prototype

public GestureDetector(Context context, OnGestureListener listener) 

Source Link

Document

Creates a GestureDetector with the supplied listener.

Usage

From source file:org.photosynq.android.photosynq.barcode.BarcodeCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *//* w w w. j a va  2 s. c o m*/
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.activity_barcode_capture);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<BarcodeGraphic>) findViewById(R.id.graphicOverlay);

    // read parameters from intent and preferences
    boolean autoFocus = getIntent().getBooleanExtra(INTENT_AUTOFOCUS, false);
    boolean useFlash;
    if (getIntent().hasExtra(INTENT_FLASH)) {
        useFlash = getIntent().getBooleanExtra(INTENT_FLASH, false);
    } else {
        useFlash = getPreferences(MODE_PRIVATE).getBoolean(getString(R.string.settings_barcode_flash), false);
    }

    mAutoCapture = getIntent().getBooleanExtra(INTENT_AUTOCAPTURE, false);

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    mFlashlightButton = (ImageButton) findViewById(R.id.ib_flashlight);
    mFlashlightButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mFlashlight = !mFlashlight;
            switchFlashlight(mFlashlight);
        }
    });

    mFlashlight = useFlash;
    switchFlashlight(mFlashlight);

}

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From source file:com.ttxgps.zoom.GestureImageViewTouchListener.java

public GestureImageViewTouchListener(final GestureImageView image, int displayWidth, int displayHeight,
        ViewPager pager) {//ww w . j  a  v  a  2  s .  c om
    super();
    this.image = image;
    mPager = pager;
    this.displayWidth = displayWidth;
    this.displayHeight = displayHeight;

    this.centerX = (float) displayWidth / 2.0f;
    this.centerY = (float) displayHeight / 2.0f;

    this.imageWidth = image.getImageWidth();
    this.imageHeight = image.getImageHeight();

    startingScale = image.getScale();

    currentScale = startingScale;
    lastScale = startingScale;

    boundaryRight = displayWidth;
    boundaryBottom = displayHeight;
    boundaryLeft = 0;
    boundaryTop = 0;

    next.x = image.getImageX();
    next.y = image.getImageY();

    flingListener = new FlingListener();
    flingAnimation = new FlingAnimation();
    zoomAnimation = new ZoomAnimation();
    moveAnimation = new MoveAnimation();

    flingAnimation.setListener(new FlingAnimationListener() {
        @Override
        public void onMove(float x, float y) {
            handleDrag(current.x + x, current.y + y);
        }

        @Override
        public void onComplete() {
        }
    });

    zoomAnimation.setZoom(2.0f);
    zoomAnimation.setZoomAnimationListener(new ZoomAnimationListener() {
        @Override
        public void onZoom(float scale, float x, float y) {
            if (scale <= maxScale && scale >= minScale) {
                handleScale(scale, x, y);
            }
        }

        @Override
        public void onComplete() {
            inZoom = false;
            handleUp();
        }
    });

    moveAnimation.setMoveAnimationListener(new MoveAnimationListener() {

        @Override
        public void onMove(float x, float y) {
            image.setPosition(x, y);
            image.redraw();
        }
    });

    tapDetector = new GestureDetector(image.getContext(), new SimpleOnGestureListener() {
        @Override
        public boolean onDoubleTap(MotionEvent e) {
            // if (mPager != null
            // && mPager.getOnViewListener() != null) {
            // mPager.getOnViewListener().onDoubleTap();
            // if (image.zoom) {
            // startZoom(e);
            // }
            // }
            return true;
        }

        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            // if (mPager != null
            // && mPager.getOnViewListener() != null) {
            // mPager.getOnViewListener().onSingleTapConfirmed();
            // }
            if (!inZoom) {
                if (onClickListener != null) {
                    onClickListener.onClick(image);
                    return true;
                }
            }

            return false;
        }

        @Override
        public void onLongPress(MotionEvent e) {
            // if (mPager != null
            // && mPager.getOnViewListener() != null) {
            // mPager.getOnViewListener().onLongPress();
            // }
            super.onLongPress(e);
        }

    });

    flingDetector = new GestureDetector(image.getContext(), flingListener);
    imageListener = image.getGestureImageViewListener();

    calculateBoundaries();
}

---

From source file:com.guodong.sun.guodong.widget.ZoomImageView.java

private void init(Context context) {
    mSmoothMatrix = new Matrix();
    mPaint = new Paint();
    mPaint.setColor(mBgColor);/*from w w w  .  ja  va  2  s. co  m*/
    mPaint.setStyle(Style.FILL);
    //      setBackgroundColor(mBgColor);

    mScaleMatrix = new Matrix();
    setScaleType(ScaleType.MATRIX);

    mScaleGestureDetector = new ScaleGestureDetector(context, this);

    setOnTouchListener(this);

    mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();

    mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
        public boolean onDoubleTap(MotionEvent e) {

            if (isAutoScale == true) {
                return true;
            }

            float X = e.getX();
            float Y = e.getY();

            if (getScale() < mMidScale) {

                postDelayed(new AutoScaleRunnable(mMidScale, X, Y), 16);
                isAutoScale = true;

            } else if ((getScale() >= mMidScale) && (getScale() < mMaxScale)) {

                postDelayed(new AutoScaleRunnable(mMaxScale, X, Y), 16);
                isAutoScale = true;

            } else {

                postDelayed(new AutoScaleRunnable(mMinScale, X, Y), 5);
                isAutoScale = true;

            }
            return true;
        }

        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            if (mClickListener != null)
                mClickListener.onClick(ZoomImageView.this);
            return super.onSingleTapUp(e);
        }

        @Override
        public void onLongPress(MotionEvent e) {
            if (mLongClickListener != null)
                mLongClickListener.onLongClick(ZoomImageView.this);
        }
    });
}

---

From source file:com.appolica.interactiveinfowindow.InfoWindowManager.java

/**
 * Call this method if you are not using
 * {@link com.appolica.interactiveinfowindow.fragment.MapInfoWindowFragment}. If you are calling
 * it from a Fragment we suggest you to call it in {@link Fragment#onViewCreated(View, Bundle)}
 * and if you are calling it from an Activity you should call it in
 * {@link android.app.Activity#onCreate(Bundle)}.
 *
 * @param parent             The parent of your {@link com.google.android.gms.maps.MapView} or
 *                           {@link com.google.android.gms.maps.SupportMapFragment}.
 * @param savedInstanceState The saved state Bundle from your Fragment/Activity.
 *//* w  w w.  j ava 2s  .c o m*/
public void onParentViewCreated(@NonNull final TouchInterceptFrameLayout parent,
        @Nullable final Bundle savedInstanceState) {

    this.parent = parent;
    this.idProvider = new FragmentContainerIdProvider(savedInstanceState);
    this.containerSpec = generateDefaultContainerSpecs(parent.getContext());

    parent.setDetector(new GestureDetector(parent.getContext(), new GestureDetector.SimpleOnGestureListener() {

        @Override
        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {

            if (isOpen()) {
                centerInfoWindow(currentWindow, currentContainer);
            }

            return true;
        }

        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {

            if (isOpen()) {
                if (hideOnFling) {
                    hide(currentWindow);
                } else {
                    centerInfoWindow(currentWindow, currentContainer);
                }
            }

            return true;
        }

        @Override
        public boolean onDoubleTap(MotionEvent e) {

            if (isOpen()) {
                centerInfoWindow(currentWindow, currentContainer);
            }

            return true;
        }
    }));

    currentContainer = parent.findViewById(idProvider.currentId);

    if (currentContainer == null) {
        currentContainer = createContainer(parent);

        parent.addView(currentContainer);
    }

    final Fragment oldFragment = fragmentManager.findFragmentByTag(FRAGMENT_TAG_INFO);
    if (oldFragment != null) {
        fragmentManager.beginTransaction().remove(oldFragment).commitNow();
    }

}

---

From source file:com.bayarchain.OCR.OcrCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *//*  w  ww . j a  v a  2 s  . c om*/
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.ocr_capture2);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);
    demoName = (EditText) findViewById(R.id.editText);
    clear_btn = (Button) findViewById(R.id.clear_button);
    continue_btn = (Button) findViewById(R.id.continue_button);

    continue_btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            if (!demoName.getText().toString().equals("")) {
                Intent returnIntent = new Intent();
                returnIntent.putExtra("result", demoName.getText().toString().replace("$", ""));
                setResult(Activity.RESULT_OK, returnIntent);
                OcrCaptureActivity.this.finish();
            } else
                Toast.makeText(OcrCaptureActivity.this, "Please enter only numbers!", Toast.LENGTH_SHORT)
                        .show();
        }
    });
    clear_btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            demoName.setText("");
        }
    });

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = true;
    boolean useFlash = false;

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    Snackbar.make(mGraphicOverlay, "Tap to capture. Pinch/Stretch to zoom", Snackbar.LENGTH_LONG).show();
}

---

From source file:com.example.android.foldinglayout.FoldingLayoutActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_fold);

    mImageView = (ImageView) findViewById(R.id.image_view);
    mImageView.setPadding(ANTIALIAS_PADDING, ANTIALIAS_PADDING, ANTIALIAS_PADDING, ANTIALIAS_PADDING);
    mImageView.setScaleType(ImageView.ScaleType.FIT_XY);
    mImageView.setImageDrawable(getResources().getDrawable(R.drawable.image));

    if (hasApiLevel(Build.VERSION_CODES.ICE_CREAM_SANDWICH)) {
        initTextureView();// www.j  a  v a2s.  co m
    }

    mAnchorSeekBar = (SeekBar) findViewById(R.id.anchor_seek_bar);
    mFoldLayout = (FoldingLayout) findViewById(R.id.fold_view);
    mFoldLayout.setBackgroundColor(Color.BLACK);
    mFoldLayout.setFoldListener(mOnFoldListener);

    mTouchSlop = ViewConfiguration.get(this).getScaledTouchSlop();

    mAnchorSeekBar.setOnSeekBarChangeListener(mSeekBarChangeListener);

    mScrollGestureDetector = new GestureDetector(this, new ScrollGestureDetector());
    mItemSelectedListener = new ItemSelectedListener();

    mDefaultPaint = new Paint();
    mSepiaPaint = new Paint();

    ColorMatrix m1 = new ColorMatrix();
    ColorMatrix m2 = new ColorMatrix();
    m1.setSaturation(0);
    m2.setScale(1f, .95f, .82f, 1.0f);
    m1.setConcat(m2, m1);
    mSepiaPaint.setColorFilter(new ColorMatrixColorFilter(m1));
}

---

From source file:com.cqyw.goheadlines.widget.horizonListView.HorizontalListView.java

private synchronized void initView() {
    mLeftViewIndex = -1;//from w  ww.j  av  a  2 s. c  om
    mRightViewIndex = 0;
    mDisplayOffset = 0;
    mCurrentX = 0;
    mNextX = 0;
    mMaxX = Integer.MAX_VALUE;
    mScroller = new Scroller(getContext());
    mGesture = new GestureDetector(getContext(), mOnGesture);
}

---

From source file:com.huyn.demogroup.zoomageview.view.PhotoViewAttacher.java

public PhotoViewAttacher(ImageView imageView) {
    mImageView = imageView;/* w  ww.ja  v a  2  s  . c  o m*/
    View parent = (View) mImageView.getParent();
    parent.setOnTouchListener(this);
    parent.addOnLayoutChangeListener(this);

    if (imageView.isInEditMode()) {
        return;
    }

    mBaseRotation = 0.0f;

    // Create Gesture Detectors...
    mScaleDragDetector = new CustomGestureDetector(imageView.getContext(), this);

    mGestureDetector = new GestureDetector(imageView.getContext(),
            new GestureDetector.SimpleOnGestureListener() {

                // forward long click listener
                @Override
                public void onLongPress(MotionEvent e) {
                    if (mLongClickListener != null) {
                        mLongClickListener.onLongClick(mImageView);
                    }
                }

                @Override
                public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
                    if (mSingleFlingListener != null) {
                        if (getScale() > DEFAULT_MIN_SCALE) {
                            return false;
                        }

                        if (MotionEventCompat.getPointerCount(e1) > SINGLE_TOUCH
                                || MotionEventCompat.getPointerCount(e2) > SINGLE_TOUCH) {
                            return false;
                        }

                        return mSingleFlingListener.onFling(e1, e2, velocityX, velocityY);
                    }
                    return false;
                }
            });

    mGestureDetector.setOnDoubleTapListener(new GestureDetector.OnDoubleTapListener() {
        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            if (mIsDragging) {
                return false;
            }
            if (mOnClickListener != null) {
                mOnClickListener.onClick(mImageView);
            }
            final RectF displayRect = getDisplayRect();

            if (displayRect != null) {
                final float x = e.getX(), y = e.getY();

                // Check to see if the user tapped on the photo
                if (displayRect.contains(x, y)) {

                    float xResult = (x - displayRect.left) / displayRect.width();
                    float yResult = (y - displayRect.top) / displayRect.height();

                    if (mPhotoTapListener != null) {
                        mPhotoTapListener.onPhotoTap(mImageView, xResult, yResult);
                    }
                    return true;
                } else {
                    if (mOutsidePhotoTapListener != null) {
                        mOutsidePhotoTapListener.onOutsidePhotoTap(mImageView);
                    }
                }
            }
            return false;
        }

        @Override
        public boolean onDoubleTap(MotionEvent ev) {
            try {
                float scale = getScale();
                float x = ev.getX();
                float y = ev.getY();

                if (scale < getMediumScale()) {
                    setScale(getMediumScale(), x, y, true);
                } else if (scale >= getMediumScale() && scale < getMaximumScale()) {
                    setScale(getMaximumScale(), x, y, true);
                } else {
                    setScale(getMinimumScale(), x, y, true);
                }
            } catch (ArrayIndexOutOfBoundsException e) {
                // Can sometimes happen when getX() and getY() is called
            }

            return true;
        }

        @Override
        public boolean onDoubleTapEvent(MotionEvent e) {
            // Wait for the confirmed onDoubleTap() instead
            return false;
        }
    });
}

---

From source file:com.example.android.enghack_receipt_scanner.OcrCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///from www .j a  va  2  s .  c o m
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.ocr_capture);

    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);

    ActionBar topBar = getSupportActionBar();
    if (topBar != null) {
        topBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#6A8347")));
    }

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, true);
    boolean useFlash = getIntent().getBooleanExtra(UseFlash, false);

    // Check for the ocr_capture permission before accessing the ocr_capture.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    Snackbar.make(mGraphicOverlay, "Tap to capture. Pinch/Stretch to zoom", Snackbar.LENGTH_LONG).show();
}

---

From source file:com.example.sherrychuang.splitsmart.Activity.OcrCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///from w w  w .j  a  v a  2s .com
@Override
public void onCreate(Bundle bundle) {
    super.onCreate(bundle);
    setContentView(R.layout.ocr_capture);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);
    itemInputs = new ArrayList<>();
    e = (Event) getIntent().getSerializableExtra("event");
    itemInputsTest = new ArrayList<>();
    String s = "Apple";
    List<Tag> tmp = new ArrayList<Tag>();
    itemInputsTest.add(new ItemInput(false, s, "", tmp));
    // Set good defaults for capturing text.
    itemInputsTest.get(0).setPrice("2");

    ItemAr = new String[itemInputs.size()];
    PriceAr = new String[itemInputs.size()];
    for (int j = 0; j < itemInputs.size(); j++) {
        ItemAr[j] = itemInputs.get(j).getItemName();
        PriceAr[j] = itemInputs.get(j).getPrice();
    }

    boolean autoFocus = true;
    boolean useFlash = false;

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    // TODO: Set up the Text To Speech engine.
    TextToSpeech.OnInitListener listener = new TextToSpeech.OnInitListener() {
        @Override
        public void onInit(final int status) {
            if (status == TextToSpeech.SUCCESS) {
                Log.d("TTS", "Text to speech engine started successfully.");
                tts.setLanguage(Locale.US);
            } else {
                Log.d("TTS", "Error starting the text to speech engine.");
            }
        }
    };
    tts = new TextToSpeech(this.getApplicationContext(), listener);
    //button for saving item and price
    Button btn = (Button) findViewById(R.id.done);
    btn.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view) {
            Log.d("OcrCaptureActivity", "done");
            Intent myIntent = new Intent(OcrCaptureActivity.this, BillPage.class);
            myIntent.putExtra("Event", e);
            myIntent.putExtra("ItemInput", ItemAr);
            myIntent.putExtra("PriceInput", PriceAr);
            onPause();
            OcrCaptureActivity.this.startActivity(myIntent);

            /*if(itemInputs!=null) {
            Intent myIntent = new Intent(view.getContext(), BillContentPage.class);
            myIntent.putExtra("ItemInput", itemInputsTest);
            OcrCaptureActivity.this.startActivity(myIntent);
            }*/

        }

    });
}

---

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