/**
* Starts a drag.
*
* @param b The bitmap to display as the drag image. It will be re-scaled to the enlarged size.
* @param screenX The x position on screen of the left-top of the bitmap.
* @param screenY The y position on screen of the left-top of the bitmap.
* @param textureLeft The left edge of the region inside b to use.
* @param textureTop The top edge of the region inside b to use.
* @param textureWidth The width of the region inside b to use.
* @param textureHeight The height of the region inside b to use.
* @param source An object representing where the drag originated
* @param dragInfo The data associated with the object that is being dragged
* @param dragAction The drag action: either {@link #DRAG_ACTION_MOVE} or {@link
* #DRAG_ACTION_COPY}
*/
public void startDrag(
Bitmap b,
int screenX,
int screenY,
int textureLeft,
int textureTop,
int textureWidth,
int textureHeight,
DragSource source,
Object dragInfo,
int dragAction) {
if (PROFILE_DRAWING_DURING_DRAG) {
android.os.Debug.startMethodTracing("Launcher");
}
// Hide soft keyboard, if visible
if (mInputMethodManager == null) {
mInputMethodManager =
(InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
}
mInputMethodManager.hideSoftInputFromWindow(mWindowToken, 0);
if (mListener != null) {
mListener.onDragStart(source, dragInfo, dragAction);
}
int registrationX = ((int) mMotionDownX) - screenX;
int registrationY = ((int) mMotionDownY) - screenY;
mTouchOffsetX = mMotionDownX - screenX;
mTouchOffsetY = mMotionDownY - screenY;
mDragging = true;
mDragSource = source;
mDragInfo = dragInfo;
mVibrator.vibrate(VIBRATE_DURATION);
DragView dragView =
mDragView =
new DragView(
mContext,
b,
registrationX,
registrationY,
textureLeft,
textureTop,
textureWidth,
textureHeight);
if (mDragView != null) {
mDragView.setmOriginalWidth(textureWidth);
mDragView.setmOriginalHeight(textureHeight);
dragView.setmOriginalWidth(textureWidth);
dragView.setmOriginalHeight(textureHeight);
}
dragView.show(mWindowToken, (int) mMotionDownX, (int) mMotionDownY);
}
/**
* Starts a drag.
*
* @param b The bitmap to display as the drag image. It will be re-scaled to the enlarged size.
* @param dragLayerX The x position in the DragLayer of the left-top of the bitmap.
* @param dragLayerY The y position in the DragLayer of the left-top of the bitmap.
* @param source An object representing where the drag originated
* @param dragInfo The data associated with the object that is being dragged
* @param dragAction The drag action: either {@link #DRAG_ACTION_MOVE} or {@link
* #DRAG_ACTION_COPY}
* @param dragRegion Coordinates within the bitmap b for the position of item being dragged. Makes
* dragging feel more precise, e.g. you can clip out a transparent border
*/
public void startDrag(
Bitmap b,
int dragLayerX,
int dragLayerY,
DragSource source,
Object dragInfo,
int dragAction,
Point dragOffset,
Rect dragRegion,
float initialDragViewScale) {
if (PROFILE_DRAWING_DURING_DRAG) {
android.os.Debug.startMethodTracing("Launcher");
}
// Hide soft keyboard, if visible
if (mInputMethodManager == null) {
mInputMethodManager =
(InputMethodManager) mLauncher.getSystemService(Context.INPUT_METHOD_SERVICE);
}
mInputMethodManager.hideSoftInputFromWindow(mWindowToken, 0);
for (DragListener listener : mListeners) {
listener.onDragStart(source, dragInfo, dragAction);
}
final int registrationX = mMotionDownX - dragLayerX;
final int registrationY = mMotionDownY - dragLayerY;
final int dragRegionLeft = dragRegion == null ? 0 : dragRegion.left;
final int dragRegionTop = dragRegion == null ? 0 : dragRegion.top;
mDragging = true;
mDragObject = new DropTarget.DragObject();
mDragObject.dragComplete = false;
mDragObject.xOffset = mMotionDownX - (dragLayerX + dragRegionLeft);
mDragObject.yOffset = mMotionDownY - (dragLayerY + dragRegionTop);
mDragObject.dragSource = source;
mDragObject.dragInfo = dragInfo;
final DragView dragView =
mDragObject.dragView =
new DragView(
mLauncher,
b,
registrationX,
registrationY,
0,
0,
b.getWidth(),
b.getHeight(),
initialDragViewScale);
if (dragOffset != null) {
dragView.setDragVisualizeOffset(new Point(dragOffset));
}
if (dragRegion != null) {
dragView.setDragRegion(new Rect(dragRegion));
}
mLauncher.getDragLayer().performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
dragView.show(mMotionDownX, mMotionDownY);
handleMoveEvent(mMotionDownX, mMotionDownY);
}
public void startDrag(View v, DragSource source, Object dragInfo, int dragAction) {
if (PROFILE_DRAWING_DURING_DRAG) {
android.os.Debug.startMethodTracing("Launcher");
}
mTagPopup = v.getTag(R.id.TAG_PREVIEW);
// Hide soft keyboard, if visible
if (mInputMethodManager == null) {
mInputMethodManager =
(InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
}
mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0);
// Faruq: ArrayList For Each
for (DragListener l : mListener) {
l.onDragStart(v, source, dragInfo, dragAction);
}
Rect r = mDragRect;
r.set(v.getScrollX(), v.getScrollY(), 0, 0);
mOriginalX = mLastMotionX;
mOriginalY = mLastMotionY;
offsetDescendantRectToMyCoords(v, r);
mTouchOffsetX = mLastMotionX - r.left;
mTouchOffsetY = mLastMotionY - r.top;
v.clearFocus();
v.setPressed(false);
boolean willNotCache = v.willNotCacheDrawing();
v.setWillNotCacheDrawing(false);
// Reset the drawing cache background color to fully transparent
// for the duration of this operation
int color = v.getDrawingCacheBackgroundColor();
v.setDrawingCacheBackgroundColor(0);
if (color != 0) {
v.destroyDrawingCache();
}
v.buildDrawingCache();
Bitmap viewBitmap = v.getDrawingCache();
if (viewBitmap != null) {
mDrawModeBitmap = true;
int width = viewBitmap.getWidth();
int height = viewBitmap.getHeight();
Matrix scale = new Matrix();
float scaleFactor = v.getWidth();
scaleFactor = (scaleFactor + DRAG_SCALE) / scaleFactor;
scale.setScale(scaleFactor, scaleFactor);
mAnimationTo = 1.0f;
mAnimationFrom = 1.0f / scaleFactor;
mAnimationDuration = ANIMATION_SCALE_UP_DURATION;
mAnimationState = ANIMATION_STATE_STARTING;
mAnimationType = ANIMATION_TYPE_SCALE;
try {
mDragBitmap = Bitmap.createBitmap(viewBitmap, 0, 0, width, height, scale, true);
final Bitmap dragBitmap = mDragBitmap;
mBitmapOffsetX = (dragBitmap.getWidth() - width) / 2;
mBitmapOffsetY = (dragBitmap.getHeight() - height) / 2;
} catch (OutOfMemoryError e) {
mDrawModeBitmap = false;
width = v.getWidth();
height = v.getHeight();
scaleFactor = v.getWidth();
scaleFactor = (scaleFactor + DRAG_SCALE) / scaleFactor;
mDrawWidth = (int) (v.getWidth() * scaleFactor);
mDrawHeight = (int) (v.getHeight() * scaleFactor);
mAnimationTo = 1.0f;
mAnimationFrom = 1.0f / scaleFactor;
mAnimationDuration = ANIMATION_SCALE_UP_DURATION;
mAnimationState = ANIMATION_STATE_STARTING;
mAnimationType = ANIMATION_TYPE_SCALE;
mBitmapOffsetX = (mDrawWidth - width) / 2;
mBitmapOffsetY = (mDrawHeight - height) / 2;
}
v.destroyDrawingCache();
v.setWillNotCacheDrawing(willNotCache);
v.setDrawingCacheBackgroundColor(color);
} else {
mDrawModeBitmap = false;
int width = v.getWidth();
int height = v.getHeight();
float scaleFactor = v.getWidth();
scaleFactor = (scaleFactor + DRAG_SCALE) / scaleFactor;
mDrawWidth = (int) (v.getWidth() * scaleFactor);
mDrawHeight = (int) (v.getHeight() * scaleFactor);
mAnimationTo = 1.0f;
mAnimationFrom = 1.0f / scaleFactor;
mAnimationDuration = ANIMATION_SCALE_UP_DURATION;
mAnimationState = ANIMATION_STATE_STARTING;
mAnimationType = ANIMATION_TYPE_SCALE;
mBitmapOffsetX = (mDrawWidth - width) / 2;
mBitmapOffsetY = (mDrawHeight - height) / 2;
}
if (dragAction == DRAG_ACTION_MOVE) {
v.setVisibility(GONE);
}
mDragPaint = null;
mDragging = true;
mShouldDrop = true;
mOriginator = v;
mDragSource = source;
mDragInfo = dragInfo;
performHapticFeedback(
HapticFeedbackConstants.LONG_PRESS, HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
mEnteredRegion = false;
invalidate();
}