Example usage for android.widget ImageView getDrawable

Introduction

In this page you can find the example usage for android.widget ImageView getDrawable.

Prototype

public Drawable getDrawable()

Source Link

Document

Gets the current Drawable, or null if no Drawable has been assigned.

Usage

From source file:Main.java

public static void unbindImageDrawables(View view) {
    if (null == view) {
        return;/*from   w  ww.j a  v a  2  s . c  o m*/
    }

    if (view instanceof ImageView) {
        ImageView imageView = (ImageView) view;

        if (imageView.getDrawable() != null) {
            imageView.getDrawable().setCallback(null);
            imageView.setImageDrawable(null);
        }
    }
    if (view instanceof ViewGroup) {
        for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
            unbindImageDrawables(((ViewGroup) view).getChildAt(i));
        }
    }
}

From source file:Main.java

public static Bitmap getBitmapFromImageView(final ImageView imageView) {
    return imageView == null ? null : ((BitmapDrawable) imageView.getDrawable()).getBitmap();
}

From source file:Main.java

/**
 * Entfernt ein zur ImageView zugeordnetes Bitmap aus dem Speicher
 * @param imageView ImageView welches das Bitmap anzeigt
 *///w  w w . ja  v  a2  s  .  c o  m
public static void recycleBitmapFromImageView(ImageView imageView) {
    if (imageView != null && imageView.getDrawable() != null
            && imageView.getDrawable() instanceof BitmapDrawable) {
        final Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
        recycleBitmap(bitmap);
        imageView.setImageBitmap(null);
    }
}

From source file:Main.java

public static void unbindDrawables(View view) {
    if (null == view) {
        return;/*from   w w w  .jav  a2 s  .  co  m*/
    }
    if (view.getBackground() != null) {
        view.getBackground().setCallback(null);
        if (Build.VERSION.SDK_INT >= 16)
            view.setBackground(null);
        else
            view.setBackgroundDrawable(null);
    }
    if (view instanceof ImageView) {
        ImageView imageView = (ImageView) view;

        if (imageView.getDrawable() != null) {
            imageView.getDrawable().setCallback(null);
            imageView.setImageDrawable(null);
        }
    }
    if (view instanceof ViewGroup) {
        for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
            unbindDrawables(((ViewGroup) view).getChildAt(i));
        }
        if (!(view instanceof AdapterView<?>)) {
            ((ViewGroup) view).removeAllViews();
        }
    }
}

From source file:Main.java

public static void unbindInvisibleImageDrawables(View view) {
    if (null == view) {
        return;//from   w w w. j a  v  a  2 s.co m
    }

    if (view instanceof ImageView) {
        ImageView imageView = (ImageView) view;

        if (imageView.getDrawable() != null && isInVisisble(imageView)) {
            imageView.getDrawable().setCallback(null);
            imageView.setImageDrawable(null);
        }
    }
    if (view instanceof ViewGroup) {
        for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
            unbindInvisibleImageDrawables(((ViewGroup) view).getChildAt(i));
        }
    }
}

From source file:Main.java

public static void recycleImageViewBitmap(ImageView imageView) {
    if (imageView == null)
        return;//from   w  w w  . j  a  va2  s .c  o m
    Drawable drawable = imageView.getDrawable();
    if (drawable != null && drawable instanceof BitmapDrawable) {
        BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
        Bitmap bitmap = bitmapDrawable.getBitmap();
        if (bitmap != null && !bitmap.isRecycled()) {
            bitmap.recycle();
        }
    }
}

From source file:Main.java

/**
 * release all image resource bind on view
 * @param view/*from   ww  w . j  a  v  a 2 s .  c om*/
 */
@SuppressWarnings("deprecation")
public static void unbindDrawables(View view) {
    if (null == view) {
        return;
    }
    if (view.getBackground() != null) {
        view.getBackground().setCallback(null);
        if (Build.VERSION.SDK_INT >= 16)
            view.setBackground(null);
        else
            view.setBackgroundDrawable(null);
    }
    if (view instanceof ImageView) {
        ImageView imageView = (ImageView) view;

        if (imageView.getDrawable() != null) {
            imageView.getDrawable().setCallback(null);
            imageView.setImageDrawable(null);
        }
    }
    if (view instanceof ViewGroup) {
        for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
            unbindDrawables(((ViewGroup) view).getChildAt(i));
        }
        if (!(view instanceof AdapterView<?>)) {
            ((ViewGroup) view).removeAllViews();
        }
    }
}

From source file:Main.java

public static void releaseImageView(ImageView imageView) {
    if (imageView != null) {
        BitmapDrawable bitmapDrawable = (BitmapDrawable) (imageView.getDrawable());
        if (bitmapDrawable != null) {
            bitmapDrawable.setCallback(null);
        }//  ww  w. j  av a 2  s . c om
        imageView.setImageBitmap(null);
    }
}

From source file:Main.java

public static BitmapDrawable sizeChanger(Context context, ImageView imageView, int sizeOnDps, int orientation) {
    Drawable drawing = imageView.getDrawable();
    if (drawing == null) {
        return null;
    }/*w ww.  j  av  a  2  s.c o  m*/
    Bitmap bitmap = ((BitmapDrawable) drawing).getBitmap();

    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int bounding = dpToPx(250, context);

    float xScale = ((float) bounding) / width;
    float yScale = ((float) bounding) / height;
    float scale = (xScale <= yScale) ? xScale : yScale;

    Matrix matrix = new Matrix();
    matrix.postScale(scale, scale);
    matrix.postRotate(orientation, imageView.getDrawable().getBounds().width() / 2,
            imageView.getDrawable().getBounds().height() / 2);

    Bitmap scaledBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
    width = scaledBitmap.getWidth();
    height = scaledBitmap.getHeight();
    return new BitmapDrawable(scaledBitmap);
}

From source file:Main.java

public static Rect getBitmapRectFromImageView(ImageView imageView) {
    Drawable drawable = imageView.getDrawable();
    Bitmap bitmap = null;//from  w  ww.  ja va  2s . c  om
    if (drawable instanceof BitmapDrawable) {
        bitmap = ((BitmapDrawable) drawable).getBitmap();
    }

    Rect rect = new Rect();
    boolean isVisible = imageView.getGlobalVisibleRect(rect);
    if (!isVisible) {
        int[] location = new int[2];
        imageView.getLocationOnScreen(location);

        rect.left = location[0];
        rect.top = location[1];
        rect.right = rect.left + imageView.getWidth();
        rect.bottom = rect.top + imageView.getHeight();
    }

    if (bitmap != null) {

        int bitmapWidth = bitmap.getWidth();
        int bitmapHeight = bitmap.getHeight();

        int imageViewWidth = imageView.getWidth() - imageView.getPaddingLeft() - imageView.getPaddingRight();
        int imageviewHeight = imageView.getHeight() - imageView.getPaddingTop() - imageView.getPaddingBottom();

        float startScale;
        if ((float) imageViewWidth / bitmapWidth > (float) imageviewHeight / bitmapHeight) {
            // Extend start bounds horizontally
            startScale = (float) imageviewHeight / bitmapHeight;
        } else {
            startScale = (float) imageViewWidth / bitmapWidth;
        }

        bitmapHeight = (int) (bitmapHeight * startScale);
        bitmapWidth = (int) (bitmapWidth * startScale);

        int deltaX = (imageViewWidth - bitmapWidth) / 2;
        int deltaY = (imageviewHeight - bitmapHeight) / 2;

        rect.set(rect.left + deltaX, rect.top + deltaY, rect.right - deltaX, rect.bottom - deltaY);

        return rect;
    } else {
        return null;
    }
}