diff options
Diffstat (limited to 'src/com/android/launcher3/TransparentBars.java')
-rw-r--r-- | src/com/android/launcher3/TransparentBars.java | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/com/android/launcher3/TransparentBars.java b/src/com/android/launcher3/TransparentBars.java new file mode 100644 index 000000000..a12da9e6f --- /dev/null +++ b/src/com/android/launcher3/TransparentBars.java @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.launcher3; + +import android.view.View; + +public class TransparentBars { + private static final int SYSTEM_UI_FLAG_TRANSPARENT_STATUS = 0x00001000; + private static final int SYSTEM_UI_FLAG_TRANSPARENT_NAVIGATION = 0x00002000; + + // Behave properly on early K builds. Replace with api check once sdk is baked. + public static final boolean SUPPORTED = !hasSystemUiFlag("ALLOW_TRANSIENT") + && hasSystemUiFlag("TRANSPARENT_STATUS") + && hasSystemUiFlag("TRANSPARENT_NAVIGATION"); + + private final View mTarget; + + public TransparentBars(View target) { + mTarget = target; + } + + public void requestTransparentBars(boolean transparent) { + if (!SUPPORTED) return; + int flags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE + | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN + | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; + if (transparent) { + flags |= SYSTEM_UI_FLAG_TRANSPARENT_STATUS | SYSTEM_UI_FLAG_TRANSPARENT_NAVIGATION; + } + mTarget.setSystemUiVisibility(flags); + } + + private static boolean hasSystemUiFlag(String name) { + try { + return View.class.getField("SYSTEM_UI_FLAG_" + name) != null; + } catch (NoSuchFieldException e) { + return false; + } + } +} |