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/*
* 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.app.Activity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
public class TranslucentDecor {
private static final int SYSTEM_UI_FLAG_TRANSPARENT_STATUS = 0x00001000;
private static final int SYSTEM_UI_FLAG_TRANSPARENT_NAVIGATION = 0x00002000;
// Replace with SDK constants when available.
public static final int FLAG_TRANSLUCENT_STATUS = 0x04000000;
public static final int FLAG_TRANSLUCENT_NAVIGATION = 0x08000000;
// Behave properly on early K builds.
public static final boolean SYSUI_SUPPORTED = !hasSystemUiFlag("ALLOW_TRANSIENT") &&
hasSystemUiFlag("TRANSPARENT_STATUS") &&
hasSystemUiFlag("TRANSPARENT_NAVIGATION");
public static final boolean WM_SUPPORTED =
hasWindowManagerFlag("TRANSLUCENT_STATUS") &&
hasWindowManagerFlag("TRANSLUCENT_NAVIGATION");
private final View mTarget;
public TranslucentDecor(View target) {
mTarget = target;
}
public void requestTranslucentDecor(boolean translucent) {
int sysui = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
if (WM_SUPPORTED && mTarget.getContext() instanceof Activity) {
Window w = ((Activity) mTarget.getContext()).getWindow();
int wmFlags = FLAG_TRANSLUCENT_STATUS | FLAG_TRANSLUCENT_NAVIGATION;
if (translucent) {
w.addFlags(wmFlags);
} else {
w.clearFlags(wmFlags);
}
} else if (SYSUI_SUPPORTED) { // Remove when droidfood platform is updated
if (translucent) {
sysui |= SYSTEM_UI_FLAG_TRANSPARENT_STATUS | SYSTEM_UI_FLAG_TRANSPARENT_NAVIGATION;
}
}
mTarget.setSystemUiVisibility(sysui);
}
private static boolean hasWindowManagerFlag(String name) {
try {
return WindowManager.LayoutParams.class.getField("FLAG_" + name) != null;
} catch (NoSuchFieldException e) {
return false;
}
}
private static boolean hasSystemUiFlag(String name) {
try {
return View.class.getField("SYSTEM_UI_FLAG_" + name) != null;
} catch (NoSuchFieldException e) {
return false;
}
}
}
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