android.widget.ImageView.setDrawingCacheEnabled()方法的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中android.widget.ImageView.setDrawingCacheEnabled()方法的一些代码示例，展示了ImageView.setDrawingCacheEnabled()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ImageView.setDrawingCacheEnabled()方法的具体详情如下：
包路径：android.widget.ImageView
类名称：ImageView
方法名：setDrawingCacheEnabled

ImageView.setDrawingCacheEnabled介绍

暂无

代码示例

代码示例来源：origin: fossasia/pslab-android

colorMap.setDrawingCacheEnabled(true);
Bitmap clickSpot = Bitmap.createBitmap(colorMap.getDrawingCache());
colorMap.setDrawingCacheEnabled(false);
try {
  int pixel = clickSpot.getPixel((int) event.getX(), (int) event.getY());

代码示例来源：origin: stackoverflow.com

ImageView view;
...
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
layoutParams.width = 400;
layoutParams.height = 400;
view.setLayoutParams(layoutParams);
Drawable drawable = view.getDrawable().mutate();//Vector
view.setImageDrawable(drawable);// <- that's a hack
view.setDrawingCacheEnabled(true);
Bitmap bitmap = container.getDrawingCache();

代码示例来源：origin: mylhyl/Android-Zxing

@Override
  public void onClick(View v) {
    imageView.setDrawingCacheEnabled(true);//step 1
    Bitmap bitmap = imageView.getDrawingCache();//step 2
    //step 3 转bytes
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
    DeCodeActivity.gotoActivity(MainActivity.this, baos.toByteArray());//step 4
    imageView.setDrawingCacheEnabled(false);//step 5
  }
});

代码示例来源：origin: stackoverflow.com

ImageView imageView=(ImageView)findViewById(R.id.image);
   imageView.setBackgroundResource(R.drawable.ic_launcher);
  imageView.setDrawingCacheEnabled(true);
  Drawable d=imageView.getBackground();

代码示例来源：origin: qyxxjd/BaseProject

/**
 * 将ImageView转换为Bitmap.
 *
 * @param view 要转换为bitmap的View
 * @return byte[] 图片的byte[]
 */
public static Bitmap imageView2Bitmap(@NonNull ImageView view) {
  Bitmap bitmap = null;
  try {
    bitmap = Bitmap.createBitmap(view.getDrawingCache());
    view.setDrawingCacheEnabled(false);
  } catch (Exception e) {
    e.printStackTrace();
  }
  return bitmap;
}

代码示例来源：origin: qyxxjd/AndroidBasicProject

/**
 * 将ImageView转换为Bitmap.
 *
 * @param view 要转换为bitmap的View
 * @return byte[] 图片的byte[]
 */
public static Bitmap imageView2Bitmap(ImageView view) {
  Bitmap bitmap = null;
  try {
    bitmap = Bitmap.createBitmap(view.getDrawingCache());
    view.setDrawingCacheEnabled(false);
  } catch (Exception e) {
    e.printStackTrace();
  }
  return bitmap;
}

代码示例来源：origin: microbit-foundation/microbit-blue

public int getHotspotColor (int hotspotId, int x, int y) {
  ImageView img = (ImageView) findViewById(hotspotId);
  img.setDrawingCacheEnabled(true);
  Bitmap hotspots = Bitmap.createBitmap(img.getDrawingCache());
  img.setDrawingCacheEnabled(false);
  if (x >= 0 && y >= 0 && x <= hotspots.getWidth() && y <= hotspots.getHeight()) {
    return hotspots.getPixel(x, y);
  } else {
    return 0;
  }
}

代码示例来源：origin: zxfnicholas/CameraSDK

private void getViewBitmap() {
  cropimage.setDrawingCacheEnabled(true);		
  Bitmap bitmap = Bitmap.createBitmap(cropimage.getDrawingCache());
  // 清缓存
  cropimage.destroyDrawingCache();
  int w = cropimage.getWidth();
  int h = cropimage.getHeight();
  //itbmp = Bitmap.createBitmap(bitmap, 0, 0, 640, 640);
  
  itbmp = Bitmap.createBitmap(bitmap, 0, 0, w, w);
  bitmap=ThumbnailUtils.extractThumbnail(bitmap, 640, 640);// 缩放图片到指定的宽高到640px
}

代码示例来源：origin: stackoverflow.com

final ImageView tempImageView = new ImageView(getActivity());
final Bitmap tmp = BitmapFactory.decodeFile(LayoutParams.WRAP_CONTENT);
tempImageView.setImageBitmap(tmp);
tempImageView.setDrawingCacheEnabled(true);

// resize and create canvas
tempImageView.measure(MeasureSpec.makeMeasureSpec(256, MeasureSpec.EXACTLY), MeasureSpec.makeMeasureSpec(256, MeasureSpec.EXACTLY));
tempImageView.layout(0, 0, tempImageView.getMeasuredWidth(), tempImageView.getMeasuredHeight()); 

tempImageView.buildDrawingCache(true);
final Bitmap resized_bm = Bitmap.createBitmap(tempImageView.getDrawingCache());
tempImageView.setDrawingCacheEnabled(false);

代码示例来源：origin: stackoverflow.com

ImageView img= new ImageView();
img=(ImageView) rrr.getChildAt(0);
    img.setRotation(90); 

img.setDrawingCacheEnabled(true);
    img.buildDrawingCache(); 
if(img.isDrawingCacheEnabled()){               
    Bitmap bitmap =img.getDrawingCache(true);             
}img.destroyDrawingCache();
    img.setDrawingCacheEnabled(false);
ByteArrayOutputStream bao = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 100,
                bao);

    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.postRotate(90);
    Bitmap rotatedBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
    BitmapDrawable bmd = new BitmapDrawable(rotatedBitmap); 
    rrr.removeViewAt(0);
    ImageView img_new=new ImageView(ImageSlideShow.this);
    img_new.setImageDrawable(bmd);
    img_new.setScaleType(ScaleType.CENTER);
    rrr.addView(img_new, new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));

代码示例来源：origin: stackoverflow.com

mImageView = new WeakReference<>(imageView);
imageView.setDrawingCacheEnabled(true);
imageView.setOnTouchListener(this);

代码示例来源：origin: wsy858/android-headimage-cliper

/**
 * 获取剪切图
 */
public Bitmap clip() {
  imageView.setDrawingCacheEnabled(true);
  imageView.buildDrawingCache();
  Rect rect = clipView.getClipRect();
  Bitmap cropBitmap = null;
  Bitmap zoomedCropBitmap = null;
  try {
    cropBitmap = Bitmap.createBitmap(imageView.getDrawingCache(), rect.left, rect.top, rect.width(), rect.height());
    zoomedCropBitmap = zoomBitmap(cropBitmap, 200, 200);
  } catch (Exception e) {
    e.printStackTrace();
  }
  if (cropBitmap != null) {
    cropBitmap.recycle();
  }
  // 释放资源
  imageView.destroyDrawingCache();
  return zoomedCropBitmap;
}

代码示例来源：origin: SwiftyWang/FingerColoring-Android

public PhotoViewAttacher(ImageView imageView, boolean zoomable) {
  mImageView = new WeakReference<>(imageView);
  imageView.setDrawingCacheEnabled(true);
  imageView.setOnTouchListener(this);
  ViewTreeObserver observer = imageView.getViewTreeObserver();
  if (null != observer)
    observer.addOnGlobalLayoutListener(this);
  // Make sure we using MATRIX Scale Type
  setImageViewScaleTypeMatrix(imageView);
  if (imageView.isInEditMode()) {
    return;
  }
  // Create Gesture Detectors...
  mScaleDragDetector = VersionedGestureDetector.newInstance(
      imageView.getContext(), this);
  mGestureDetector = new GestureDetector(imageView.getContext(),
      new GestureDetector.SimpleOnGestureListener() {
        // forward long click listener
        @Override
        public void onLongPress(MotionEvent e) {
          if (null != mLongClickListener) {
            mLongClickListener.onLongClick(getImageView());
          }
        }
      });
  //mGestureDetector.setOnDoubleTapListener(new DefaultOnDoubleTapListener(this));
  // Finally, update the UI so that we're zoomable
  setZoomable(zoomable);
}

代码示例来源：origin: tyhjh/JinyunEffect

private void setBackground() {
  Bitmap bitmap = BlurUtil.doBlur(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_show), 10, 30);
  iv_bg.setImageBitmap(bitmap);
  iv_bg.setDrawingCacheEnabled(true);
  getBitmap();
  ColorMatrix colorMatrix = new ColorMatrix();
  colorMatrix.setScale(0.7f, 0.7f, 0.7f, 1);
  ColorMatrixColorFilter colorFilter = new ColorMatrixColorFilter(colorMatrix);
  iv_bg.setColorFilter(colorFilter);
}

代码示例来源：origin: tyhjh/JinyunEffect

@Override
  public void run() {
    //启用DrawingCache并创建位图
    iv_bg.buildDrawingCache();
    while (iv_bg.getDrawingCache() == null) {
      iv_bg.buildDrawingCache();
      SystemClock.sleep(10);
    }
    Bitmap bitmap2 = Bitmap.createBitmap(iv_bg.getDrawingCache());
    bitmap2 = Bitmap.createBitmap(bitmap2, 0, jinyunView.getTop(), jinyunView.getWidth(), jinyunView.getHeight());
    jinyunView.setBitmapBg(bitmap2);
    iv_bg.setDrawingCacheEnabled(false);
  }
}).start();

代码示例来源：origin: JustinRoom/CameraMaskDemo

private void showCameraLensRectBitmap() {
    ivBackground.setDrawingCacheEnabled(true);
    Bitmap bitmap = ivBackground.getDrawingCache(true);
    bitmap = cameraLensView.cropCameraLensRectBitmap(bitmap, false);
    ImageView imageView = new ImageView(getContext());
    imageView.setImageBitmap(bitmap);
    BottomShowDialog dialog = new BottomShowDialog(getContext());
    dialog.setTitle("ShowBitmapInCameraLensRect");
    dialog.setBitmap(bitmap);
    dialog.show();
  }
}

代码示例来源：origin: MukeshKumar009/EcomSample

public PhotoViewAttacher(ImageView imageView, boolean zoomable) {
  mImageView = new WeakReference<>(imageView);
  imageView.setDrawingCacheEnabled(true);
  imageView.setOnTouchListener(this);
  ViewTreeObserver observer = imageView.getViewTreeObserver();
  if (null != observer)
    observer.addOnGlobalLayoutListener(this);
  // Make sure we using MATRIX Scale Type
  setImageViewScaleTypeMatrix(imageView);
  if (imageView.isInEditMode()) {
    return;
  }
  // Create Gesture Detectors...
  mScaleDragDetector = VersionedGestureDetector.newInstance(
      imageView.getContext(), this);
  mGestureDetector = new GestureDetector(imageView.getContext(),
      new GestureDetector.SimpleOnGestureListener() {
        // forward long click listener
        @Override
        public void onLongPress(MotionEvent e) {
          if (null != mLongClickListener) {
            mLongClickListener.onLongClick(getImageView());
          }
        }
      });
  mGestureDetector.setOnDoubleTapListener(new DefaultOnDoubleTapListener(this));
  // Finally, update the UI so that we're zoomable
  setZoomable(zoomable);
}

代码示例来源：origin: SuperKotlin/PictureViewer

public PhotoViewAttacher(ImageView imageView) {
  mImageView = new WeakReference<ImageView>(imageView);
  imageView.setDrawingCacheEnabled(true);
  imageView.setOnTouchListener(this);
  ViewTreeObserver observer = imageView.getViewTreeObserver();
  if (null != observer)
    observer.addOnGlobalLayoutListener(this);
  // Make sure we using MATRIX Scale Type
  setImageViewScaleTypeMatrix(imageView);
  if (imageView.isInEditMode()) {
    return;
  }
  // Create Gesture Detectors...
  mScaleDragDetector = VersionedGestureDetector.newInstance(
      imageView.getContext(), this);
  mGestureDetector = new GestureDetector(imageView.getContext(),
      new GestureDetector.SimpleOnGestureListener() {
        // forward long click listener
        @Override
        public void onLongPress(MotionEvent e) {
          if (null != mLongClickListener) {
            mLongClickListener.onLongClick(getImageView());
          }
        }
      });
  mGestureDetector.setOnDoubleTapListener(new DefaultOnDoubleTapListener(this));
  // Finally, update the UI so that we're zoomable
  setZoomable(true);
}

代码示例来源：origin: albinmathew/PhotoCrop

public PhotoViewAttacher(ImageView imageView) {
  mImageView = new WeakReference<>(imageView);
  imageView.setDrawingCacheEnabled(true);
  imageView.setOnTouchListener(this);

代码示例来源：origin: xingkongus/superXingPostCard

private void init() {
  ll = (LinearLayout) findViewById(R.id.ll);
  ll.setDrawingCacheEnabled(true);
  iv = (ImageView) findViewById(R.id.iv1);
  iv.setDrawingCacheEnabled(true);
  tv = (TextView) findViewById(R.id.tv1);
  tv2 = (TextView) findViewById(R.id.tv_date);
  getPhoto(iv);
}

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