95 lines
3.4 KiB
Java
95 lines
3.4 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.animation.AnimationUtils;
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import org.sufficientlysecure.keychain.R;
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/**
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* This is a fragment helper class, which implements a generic
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* progressbar/container view.
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* <p/>
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* To use it in a fragment, simply subclass, use onCreateView to create the
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* layout's root view, and ues getContainer() as root view of your subclass.
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* The layout shows a progress bar by default, and can be switched to the
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* actual contents by calling setContentShown().
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*/
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public class LoaderFragment extends Fragment {
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private boolean mContentShown;
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private View mProgressContainer;
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private ViewGroup mContainer;
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View root = inflater.inflate(R.layout.loader_layout, container, false);
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mContentShown = true;
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mContainer = (ViewGroup) root.findViewById(R.id.loader_container);
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mProgressContainer = root.findViewById(R.id.loader_progress);
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// content is not shown (by visibility statuses in the layout files)
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mContentShown = false;
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return root;
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}
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protected ViewGroup getContainer() {
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return mContainer;
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}
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public void setContentShown(boolean shown, boolean animate) {
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if (mContentShown == shown) {
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return;
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}
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mContentShown = shown;
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if (shown) {
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if (animate) {
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mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
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getActivity(), android.R.anim.fade_out));
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mContainer.startAnimation(AnimationUtils.loadAnimation(
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getActivity(), android.R.anim.fade_in));
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}
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mProgressContainer.setVisibility(View.GONE);
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mContainer.setVisibility(View.VISIBLE);
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} else {
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if (animate) {
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mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
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getActivity(), android.R.anim.fade_in));
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mContainer.startAnimation(AnimationUtils.loadAnimation(
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getActivity(), android.R.anim.fade_out));
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}
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mProgressContainer.setVisibility(View.VISIBLE);
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mContainer.setVisibility(View.INVISIBLE);
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}
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}
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public void setContentShown(boolean shown) {
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setContentShown(shown, true);
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}
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public void setContentShownNoAnimation(boolean shown) {
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setContentShown(shown, false);
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}
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}
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