Example usage for android.view ScaleGestureDetector ScaleGestureDetector

Introduction

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

Prototype

public ScaleGestureDetector(Context context, OnScaleGestureListener listener) 

Source Link

Document

Creates a ScaleGestureDetector with the supplied listener.

Usage

From source file:com.om.snipit.activities.BarcodeCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///from  w  ww.java  2s.com
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.activity_barcode_capture);

    ButterKnife.bind(this);

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

    setupToolbar(toolbar, getString(R.string.barcode_capture_activity), true,
            Constants.DEFAULT_ACTIVITY_TOOLBAR_COLORS);

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, false);
    boolean useFlash = getIntent().getBooleanExtra(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, R.string.capture_barcode_instructions, Snackbar.LENGTH_INDEFINITE).show();
}

---

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 v  a  2  s  .com
    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.cpen321.fridgemanager.OcrReader.OcrCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///from www.ja  va2  s. c  o  m
@Override
public void onCreate(Bundle bundle) {
    super.onCreate(bundle);
    setContentView(R.layout.ocr_capture);

    // Get Text
    if (getIntent().getStringArrayListExtra("texts") == null) {
        texts = new ArrayList<>();
    } else {
        texts = getIntent().getStringArrayListExtra("texts");
    }

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

    // Set good defaults for capturing text.
    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 Scan After Seeing Text Overlays. Pinch to Zoom.",
            Snackbar.LENGTH_LONG).show();

    SharedPreferences settings = getSharedPreferences("prefs", 0);
    boolean firstCamera = settings.getBoolean("firstCamera", false);
    if (firstCamera == false) {
        SharedPreferences.Editor editor = settings.edit();
        editor.putBoolean("firstCamera", true);
        editor.commit();

        showFirstTimeDialog();
    }

}

---

From source file:com.gmartinsribeiro.qrcodereader.BarcodeCaptureActivity.java

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

    mToolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(mToolbar);

    if (Build.VERSION.SDK_INT >= 21) {
        Window window = getWindow();
        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        window.setStatusBarColor(getResources().getColor(R.color.blue700));
    }

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

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, false);
    boolean useFlash = getIntent().getBooleanExtra(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, "Pinch/Stretch to zoom", Snackbar.LENGTH_LONG).show();
}

---

From source file:it.jaschke.alexandria.BarcodeScanner.BarcodeCaptureActivity.java

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

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

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, false);
    boolean useFlash = getIntent().getBooleanExtra(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, getApplicationContext().getString(R.string.tap_directions),
            Snackbar.LENGTH_INDEFINITE).show();
}

---

From source file:com.konker.konkersensors.BarcodeCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///ww w  .j  a v  a2 s .c  o m
@Override
public void onCreate(Bundle icicle) {
    // Obtain the FirebaseAnalytics instance.
    mFirebaseAnalytics = FirebaseAnalytics.getInstance(this);
    //Bundle bundle = new Bundle();
    //bundle.putString(FirebaseAnalytics.Param.ITEM_ID, "BarcodeCaptureActivity");
    //bundle.putString(FirebaseAnalytics.Param.CONTENT_TYPE, "activity");
    //mFirebaseAnalytics.logEvent(FirebaseAnalytics.Event.SELECT_CONTENT, bundle);

    super.onCreate(icicle);
    setContentView(R.layout.barcode_capture);

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

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, false);
    boolean useFlash = getIntent().getBooleanExtra(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:org.photosynq.android.photosynq.barcode.BarcodeCaptureActivity.java

/**
 * Initializes the UI and creates the detector pipeline.
 *///from w w  w .j a  va2s  .  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);

}

---

From source file:com.abct.tljr.news.widget.ZoomableImageView.java

private void init(Context context) {
    mPaint = new Paint();
    mPaint.setDither(true);//  w  w  w. ja v a2s.c  o  m
    mPaint.setFilterBitmap(true);
    mPaint.setAntiAlias(true);

    // Setup the refresh runnable
    mRefresh = new Runnable() {
        @Override
        public void run() {
            postInvalidate();
        }
    };

    // Setup the gesture and scale listeners
    mScaleDetector = new ScaleGestureDetector(context, new ScaleListener());
    mGestureDetector = new GestureDetector(context, new MyGestureListener());

    // Force hardware acceleration
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
        setLayerType(View.LAYER_TYPE_HARDWARE, null);
}

---

From source file:org.thoughtcrime.securesms.scribbles.widget.MotionView.java

private void init(@NonNull Context context, @Nullable AttributeSet attrs) {
    // I fucking love Android
    setWillNotDraw(false);//ww  w  . java 2  s .  c  o  m

    selectedLayerPaint = new Paint();
    selectedLayerPaint.setAlpha((int) (255 * Constants.SELECTED_LAYER_ALPHA));
    selectedLayerPaint.setAntiAlias(true);

    this.editText = new EditText(context, attrs);
    ViewCompat.setAlpha(this.editText, 0);
    this.editText.setLayoutParams(new LayoutParams(1, 1, Gravity.TOP | Gravity.LEFT));
    this.editText.setClickable(false);
    this.editText.setBackgroundColor(Color.TRANSPARENT);
    this.editText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 1);
    this.editText.setInputType(InputType.TYPE_TEXT_FLAG_MULTI_LINE | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS
            | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
    this.addView(editText);
    this.editText.clearFocus();
    this.editText.addTextChangedListener(this);

    // init listeners
    this.scaleGestureDetector = new ScaleGestureDetector(context, new ScaleListener());
    this.rotateGestureDetector = new RotateGestureDetector(context, new RotateListener());
    this.moveGestureDetector = new MoveGestureDetector(context, new MoveListener());
    this.gestureDetectorCompat = new GestureDetectorCompat(context, new TapsListener());

    setOnTouchListener(onTouchListener);

    updateUI();
}

---

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

/**
 * Initializes the UI and creates the detector pipeline.
 *///  w w w . j a v a 2 s.c o m
@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();
}

---

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