commit 6c04339c5aadb5118b0e0a8178b3d569956bbad7
author Seigo Nonaka <nona@google.com> Mon Dec 07 19:03:50 2015 -0800
committer Seigo Nonaka <nona@google.com> Tue Dec 08 19:36:30 2015 -0800
tree e60da58f580b4d290aa10df980da9ce71049c24f
parent 5765a98b594134cf4875c1205c94639da9fd427b

Change NavigationBar invisible if the input view is not shown.

The opaque navigation bar guard view does not make much sense when the
IME does not show software keyboard at all.  LatinIME does not show
any UI when the hardware keyboard is connected.

With Iea77915ecc55eedaf19899e72c44f704ba9d852c, input method can change
the navigation bar visibility.  This CL changes navigation bar invisible
when the hardware keyboard is connected.

Bug:22564251
Change-Id: I14d9490e00caa852035a05830e76114cbe6af8f2

java/src/com/android/inputmethod/latin/LatinIME.java

diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index 25a5de2..f3cf6cd 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -30,6 +30,7 @@
 import android.content.IntentFilter;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.graphics.Color;
 import android.inputmethodservice.InputMethodService;
 import android.media.AudioManager;
 import android.os.Debug;
@@ -968,12 +969,19 @@
     }
 
     @Override
+    public void onWindowShown() {
+        super.onWindowShown();
+        setNavigationBarVisibility(isInputViewShown());
+    }
+
+    @Override
     public void onWindowHidden() {
         super.onWindowHidden();
         final MainKeyboardView mainKeyboardView = mKeyboardSwitcher.getMainKeyboardView();
         if (mainKeyboardView != null) {
             mainKeyboardView.closing();
         }
+        setNavigationBarVisibility(false);
     }
 
     void onFinishInputInternal() {
@@ -1865,4 +1873,9 @@
         }
         return mRichImm.shouldOfferSwitchingToNextInputMethod(token, fallbackValue);
     }
+
+    private void setNavigationBarVisibility(final boolean visible) {
+        // Color.BLACK is ignored and default IME navigation bar color is used.
+        getWindow().getWindow().setNavigationBarColor(visible ? Color.BLACK : Color.TRANSPARENT);
+    }
 }