private boolean showSurface(float alpha) {
if (!mSurfaceVisible || mSurfaceAlpha != alpha) {
SurfaceControl.openTransaction();
try {
mSurfaceControl.setLayer(ELECTRON_BEAM_LAYER);
mSurfaceControl.setAlpha(alpha);
mSurfaceControl.show();
} finally {
SurfaceControl.closeTransaction();
}
mSurfaceVisible = true;
mSurfaceAlpha = alpha;
}
return true;
}
public ViewportWindow(Context context) {
SurfaceControl surfaceControl = null;
try {
mWindowManager.getDefaultDisplay().getRealSize(mTempPoint);
surfaceControl =
new SurfaceControl(
mWindowManagerService.mFxSession,
SURFACE_TITLE,
mTempPoint.x,
mTempPoint.y,
PixelFormat.TRANSLUCENT,
SurfaceControl.HIDDEN);
} catch (OutOfResourcesException oore) {
/* ignore */
}
mSurfaceControl = surfaceControl;
mSurfaceControl.setLayerStack(mWindowManager.getDefaultDisplay().getLayerStack());
mSurfaceControl.setLayer(
mWindowManagerService.mPolicy.windowTypeToLayerLw(
WindowManager.LayoutParams.TYPE_MAGNIFICATION_OVERLAY)
* WindowManagerService.TYPE_LAYER_MULTIPLIER);
mSurfaceControl.setPosition(0, 0);
mSurface.copyFrom(mSurfaceControl);
TypedValue typedValue = new TypedValue();
context.getTheme().resolveAttribute(R.attr.colorActivatedHighlight, typedValue, true);
final int borderColor = context.getResources().getColor(typedValue.resourceId);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeWidth(mBorderWidth);
mPaint.setColor(borderColor);
Interpolator interpolator = new DecelerateInterpolator(2.5f);
final long longAnimationDuration =
context.getResources().getInteger(com.android.internal.R.integer.config_longAnimTime);
mShowHideFrameAnimator =
ObjectAnimator.ofInt(this, PROPERTY_NAME_ALPHA, MIN_ALPHA, MAX_ALPHA);
mShowHideFrameAnimator.setInterpolator(interpolator);
mShowHideFrameAnimator.setDuration(longAnimationDuration);
mInvalidated = true;
}