aixan/lawnchair
1
0
Fork 0
mirror of https://github.com/LawnchairLauncher/lawnchair.git synced 2026-02-20 11:18:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

Adding support for extending the touch target in the touchDelegate

Browse Source 
Bug: 31458312
Change-Id: Ic819bdede2776ff63ec17053cc1326415edc1ca0
This commit is contained in:
Sunny Goyal
2016-09-15 12:32:28 -07:00
parent da1c17c492
commit 1cc48e1d0c
1 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/com/android/launcher3/util/TransformingTouchDelegate.java
View File

@@ -33,6 +33,10 @@ public class TransformingTouchDelegate extends TouchDelegate {
private final RectF mBounds;
private final RectF mTouchCheckBounds;
private float mTouchExtension;
private boolean mWasTouchOutsideBounds;
private View mDelegateView;
private boolean mDelegateTargeted;
@@ -41,10 +45,22 @@ public class TransformingTouchDelegate extends TouchDelegate {
mDelegateView = delegateView;
mBounds = new RectF();
mTouchCheckBounds = new RectF();
}
public void setBounds(int left, int top, int right, int bottom) {
mBounds.set(left, top, right, bottom);
updateTouchBounds();
}
public void extendTouchBounds(float extension) {
mTouchExtension = extension;
updateTouchBounds();
}
private void updateTouchBounds() {
mTouchCheckBounds.set(mBounds);
mTouchCheckBounds.inset(-mTouchExtension, -mTouchExtension);
}
public void setDelegateView(View view) {
@@ -62,8 +78,9 @@ public class TransformingTouchDelegate extends TouchDelegate {
boolean sendToDelegate = false;
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mDelegateTargeted = mBounds.contains(event.getX(), event.getY());
mDelegateTargeted = mTouchCheckBounds.contains(event.getX(), event.getY());
if (mDelegateTargeted) {
mWasTouchOutsideBounds = !mBounds.contains(event.getX(), event.getY());
sendToDelegate = true;
}
break;
@@ -78,9 +95,15 @@ public class TransformingTouchDelegate extends TouchDelegate {
}
boolean handled = false;
if (sendToDelegate) {
event.offsetLocation(-mBounds.left, -mBounds.top);
float x = event.getX();
float y = event.getY();
if (mWasTouchOutsideBounds) {
event.setLocation(mBounds.centerX(), mBounds.centerY());
} else {
event.offsetLocation(-mBounds.left, -mBounds.top);
}
handled = mDelegateView.dispatchTouchEvent(event);
event.offsetLocation(mBounds.left, mBounds.top);
event.setLocation(x, y);
}
return handled;
}