Add support for floating IME to split-screen
This basically converts a floating IME into what looks like
an ime that has some small size below the bottom of the screen
so that it animates to 0.
Also added alpha for this case. Would add it for all cases,
but that doesn't work well for split-screen since it translates
windows rather than insetting them so you see black flickers.
Bug: 159459047
Test: Use an expanded-ui ime in landscape and see a shortened
animation + fade-in.
Change-Id: Ib1da2750689a4bd4d3a3d4e9bc1e29aa8d41376c
diff --git a/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java b/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java
index 7b11452..8ba5b99 100644
--- a/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java
+++ b/packages/SystemUI/src/com/android/systemui/wm/DisplayImeController.java
@@ -56,12 +56,14 @@
private static final boolean DEBUG = false;
+ // NOTE: All these constants came from InsetsController.
public static final int ANIMATION_DURATION_SHOW_MS = 275;
public static final int ANIMATION_DURATION_HIDE_MS = 340;
public static final Interpolator INTERPOLATOR = new PathInterpolator(0.4f, 0f, 0.2f, 1f);
private static final int DIRECTION_NONE = 0;
private static final int DIRECTION_SHOW = 1;
private static final int DIRECTION_HIDE = 2;
+ private static final int FLOATING_IME_BOTTOM_INSET = -80;
SystemWindows mSystemWindows;
final Handler mHandler;
@@ -271,8 +273,16 @@
}
// Set frame, but only if the new frame isn't empty -- this maintains continuity
final Rect newFrame = imeSource.getFrame();
- if (newFrame.height() != 0) {
+ mImeFrame.set(newFrame);
+ final boolean isFloating = newFrame.height() == 0;
+ if (isFloating) {
+ // This is likely a "floating" or "expanded" IME, so to get animations, just
+ // pretend the ime has some size just below the screen.
mImeFrame.set(newFrame);
+ final int floatingInset = (int) (
+ mSystemWindows.mDisplayController.getDisplayLayout(mDisplayId).density()
+ * FLOATING_IME_BOTTOM_INSET);
+ mImeFrame.bottom -= floatingInset;
}
if (DEBUG) {
Slog.d(TAG, "Run startAnim show:" + show + " was:"
@@ -316,6 +326,8 @@
SurfaceControl.Transaction t = mTransactionPool.acquire();
float value = (float) animation.getAnimatedValue();
t.setPosition(mImeSourceControl.getLeash(), x, value);
+ final float alpha = isFloating ? (value - hiddenY) / (shownY - hiddenY) : 1.f;
+ t.setAlpha(mImeSourceControl.getLeash(), alpha);
dispatchPositionChanged(mDisplayId, imeTop(value), t);
t.apply();
mTransactionPool.release(t);
@@ -327,6 +339,8 @@
public void onAnimationStart(Animator animation) {
SurfaceControl.Transaction t = mTransactionPool.acquire();
t.setPosition(mImeSourceControl.getLeash(), x, startY);
+ final float alpha = isFloating ? (startY - hiddenY) / (shownY - hiddenY) : 1.f;
+ t.setAlpha(mImeSourceControl.getLeash(), alpha);
if (DEBUG) {
Slog.d(TAG, "onAnimationStart d:" + mDisplayId + " top:"
+ imeTop(hiddenY) + "->" + imeTop(shownY)
@@ -351,6 +365,7 @@
SurfaceControl.Transaction t = mTransactionPool.acquire();
if (!mCancelled) {
t.setPosition(mImeSourceControl.getLeash(), x, endY);
+ t.setAlpha(mImeSourceControl.getLeash(), 1.f);
}
dispatchEndPositioning(mDisplayId, mCancelled, t);
if (mAnimationDirection == DIRECTION_HIDE && !mCancelled) {