| /* |
| * Copyright (C) 2012 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.example.android.immersivemode; |
| |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.support.v4.app.Fragment; |
| import android.view.MenuItem; |
| import android.view.View; |
| |
| import com.example.android.common.logger.Log; |
| |
| public class ImmersiveModeFragment extends Fragment { |
| |
| public static final String TAG = "ImmersiveModeFragment"; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setHasOptionsMenu(true); |
| } |
| |
| @Override |
| public void onActivityCreated(Bundle savedInstanceState) { |
| super.onActivityCreated(savedInstanceState); |
| final View decorView = getActivity().getWindow().getDecorView(); |
| decorView.setOnSystemUiVisibilityChangeListener( |
| new View.OnSystemUiVisibilityChangeListener() { |
| @Override |
| public void onSystemUiVisibilityChange(int i) { |
| int height = decorView.getHeight(); |
| Log.i(TAG, "Current height: " + height); |
| } |
| }); |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| if (item.getItemId() == R.id.sample_action) { |
| toggleHideyBar(); |
| } |
| return true; |
| } |
| |
| /** |
| * Detects and toggles immersive mode (also known as "hidey bar" mode). |
| */ |
| public void toggleHideyBar() { |
| |
| // BEGIN_INCLUDE (get_current_ui_flags) |
| // The UI options currently enabled are represented by a bitfield. |
| // getSystemUiVisibility() gives us that bitfield. |
| int uiOptions = getActivity().getWindow().getDecorView().getSystemUiVisibility(); |
| int newUiOptions = uiOptions; |
| // END_INCLUDE (get_current_ui_flags) |
| // BEGIN_INCLUDE (toggle_ui_flags) |
| boolean isImmersiveModeEnabled = |
| ((uiOptions | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY) == uiOptions); |
| if (isImmersiveModeEnabled) { |
| Log.i(TAG, "Turning immersive mode mode off. "); |
| } else { |
| Log.i(TAG, "Turning immersive mode mode on."); |
| } |
| |
| // Navigation bar hiding: Backwards compatible to ICS. |
| if (Build.VERSION.SDK_INT >= 14) { |
| newUiOptions ^= View.SYSTEM_UI_FLAG_HIDE_NAVIGATION; |
| } |
| |
| // Status bar hiding: Backwards compatible to Jellybean |
| if (Build.VERSION.SDK_INT >= 16) { |
| newUiOptions ^= View.SYSTEM_UI_FLAG_FULLSCREEN; |
| } |
| |
| // Immersive mode: Backward compatible to KitKat. |
| // Note that this flag doesn't do anything by itself, it only augments the behavior |
| // of HIDE_NAVIGATION and FLAG_FULLSCREEN. For the purposes of this sample |
| // all three flags are being toggled together. |
| // Note that there are two immersive mode UI flags, one of which is referred to as "sticky". |
| // Sticky immersive mode differs in that it makes the navigation and status bars |
| // semi-transparent, and the UI flag does not get cleared when the user interacts with |
| // the screen. |
| if (Build.VERSION.SDK_INT >= 18) { |
| newUiOptions ^= View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY; |
| } |
| |
| getActivity().getWindow().getDecorView().setSystemUiVisibility(newUiOptions); |
| //END_INCLUDE (set_ui_flags) |
| } |
| } |