| /* |
| * Copyright (C) 2015 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.packageinstaller.permission.ui.handheld; |
| |
| import android.os.Bundle; |
| import android.preference.PreferenceFragment; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.animation.Animation; |
| import android.view.animation.Animation.AnimationListener; |
| import android.view.animation.AnimationUtils; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| import com.android.packageinstaller.R; |
| |
| public abstract class PermissionsFrameFragment extends PreferenceFragment { |
| private ViewGroup mPreferencesContainer; |
| |
| private View mLoadingView; |
| private ViewGroup mPrefsView; |
| private boolean mIsLoading; |
| |
| /** |
| * Returns the view group that holds the preferences objects. This will |
| * only be set after {@link #onCreateView} has been called. |
| */ |
| protected final ViewGroup getPreferencesContainer() { |
| return mPreferencesContainer; |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.permissions_frame, container, |
| false); |
| mPrefsView = (ViewGroup) rootView.findViewById(R.id.prefs_container); |
| if (mPrefsView == null) { |
| mPrefsView = rootView; |
| } |
| mLoadingView = rootView.findViewById(R.id.loading_container); |
| mPreferencesContainer = (ViewGroup) super.onCreateView( |
| inflater, mPrefsView, savedInstanceState); |
| setLoading(mIsLoading, false, true /* force */); |
| mPrefsView.addView(mPreferencesContainer); |
| return rootView; |
| } |
| |
| protected void setLoading(boolean loading, boolean animate) { |
| setLoading(loading, animate, false); |
| } |
| |
| private void setLoading(boolean loading, boolean animate, boolean force) { |
| if (mIsLoading != loading || force) { |
| mIsLoading = loading; |
| if (getView() == null) { |
| // If there is no created view, there is no reason to animate. |
| animate = false; |
| } |
| if (mPrefsView != null) { |
| setViewShown(mPrefsView, !loading, animate); |
| } |
| if (mLoadingView != null) { |
| setViewShown(mLoadingView, loading, animate); |
| } |
| } |
| } |
| |
| @Override |
| public ListView getListView() { |
| ListView listView = super.getListView(); |
| if (listView.getEmptyView() == null) { |
| TextView emptyView = (TextView) getView().findViewById(R.id.no_permissions); |
| listView.setEmptyView(emptyView); |
| } |
| return listView; |
| } |
| |
| private void setViewShown(final View view, boolean shown, boolean animate) { |
| if (animate) { |
| Animation animation = AnimationUtils.loadAnimation(getContext(), |
| shown ? android.R.anim.fade_in : android.R.anim.fade_out); |
| if (shown) { |
| view.setVisibility(View.VISIBLE); |
| } else { |
| animation.setAnimationListener(new AnimationListener() { |
| @Override |
| public void onAnimationStart(Animation animation) { |
| } |
| |
| @Override |
| public void onAnimationRepeat(Animation animation) { |
| } |
| |
| @Override |
| public void onAnimationEnd(Animation animation) { |
| view.setVisibility(View.INVISIBLE); |
| } |
| }); |
| } |
| view.startAnimation(animation); |
| } else { |
| view.clearAnimation(); |
| view.setVisibility(shown ? View.VISIBLE : View.INVISIBLE); |
| } |
| } |
| } |