Prevent AutoCompleteTextView from opening a popup when it shouldn't

Bug #5553515

The People app is forcing ACTV to show the IME which had the side effect
of showing the drop down popup. ACTV was unfortunately not ready to show
the drop down if the filtering resulted in no results. Doing so was putting
ACTV in a weird state that in turn caused a window to be leaked and really
bad behavior to occur in the lower graphics levels.

Change-Id: I2ff146d5ae4e4a28edf6ea17039c9f8fdb710e4f

Author: Romain Guy

core/java/android/widget/AutoCompleteTextView.java

@@ -1031,7 +1031,9 @@ public void showDropDownAfterLayout() {
     public void ensureImeVisible(boolean visible) {
         mPopup.setInputMethodMode(visible
                 ? ListPopupWindow.INPUT_METHOD_NEEDED : ListPopupWindow.INPUT_METHOD_NOT_NEEDED);
-        showDropDown();
+        if (mPopup.isDropDownAlwaysVisible() || (mFilter != null && enoughToFilter())) {
+            showDropDown();
+        }
     }
 
     /**

tests/HwAccelerationTest/src/com/android/test/hwui/TextActivity.java

@@ -21,6 +21,7 @@
 import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.os.Bundle;
+import android.text.TextPaint;
 import android.view.View;
 
 @SuppressWarnings({"UnusedDeclaration"})
@@ -39,6 +40,7 @@ static class CustomTextView extends View {
         private final Paint mScaledPaint;
         private final Paint mSkewPaint;
         private final Paint mHugePaint;
+        private final TextPaint mEventPaint;
 
         CustomTextView(Context c) {
             super(c);
@@ -70,13 +72,20 @@ static class CustomTextView extends View {
             mHugePaint.setAntiAlias(true);
             mHugePaint.setColor(0xff000000);
             mHugePaint.setTextSize(300f);
+
+            mEventPaint = new TextPaint();
+            mEventPaint.setFakeBoldText(true);
+            mEventPaint.setAntiAlias(true);
+            mEventPaint.setTextSize(14);
         }
 
         @Override
         protected void onDraw(Canvas canvas) {
             super.onDraw(canvas);
             canvas.drawRGB(255, 255, 255);
 
+            canvas.drawText("Hello OpenGL renderer!", 300, 20, mEventPaint);
+            
             mMediumPaint.setStyle(Paint.Style.FILL_AND_STROKE);
             mMediumPaint.setStrokeWidth(2.0f);
             canvas.drawText("Hello OpenGL renderer!", 100, 20, mMediumPaint);