Java tutorial
/* * Copyright (c) 2011, 2012 Roberto Tyley * * This file is part of 'Agit' - an Android Git client. * * Agit is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Agit is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see http://www.gnu.org/licenses/ . */ package com.madgag.agit; import static android.text.format.DateUtils.FORMAT_SHOW_TIME; import static android.text.format.DateUtils.formatDateTime; import static android.widget.Toast.LENGTH_SHORT; import static com.google.common.collect.Lists.newArrayList; import static com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener; import static com.madgag.agit.CommitViewerActivity.commitViewIntentFor; import static com.madgag.agit.GitIntents.GITDIR; import static com.madgag.agit.GitIntents.PATH; import static com.madgag.agit.GitIntents.UNTIL_REVS; import static com.madgag.android.listviews.ViewInflator.viewInflatorFor; import static java.lang.System.currentTimeMillis; import static org.eclipse.jgit.lib.Constants.DEFAULT_REMOTE_NAME; import android.os.Bundle; import android.support.v4.content.Loader; import android.util.Log; import android.view.View; import android.widget.ListView; import android.widget.Toast; import com.google.common.base.Stopwatch; import com.google.inject.Inject; import com.handmark.pulltorefresh.library.PullToRefreshBase; import com.handmark.pulltorefresh.library.PullToRefreshListView; import com.handmark.pulltorefresh.library.R; import com.handmark.pulltorefresh.library.support.PullToRefreshListLoadingFragment; import com.madgag.agit.operation.lifecycle.CasualShortTermLifetime; import com.madgag.agit.operations.Fetch; import com.madgag.agit.operations.GitAsyncTaskFactory; import com.madgag.agit.operations.OpNotification; import com.madgag.android.listviews.ViewHoldingListAdapter; import javax.annotation.Nullable; import java.io.File; import java.util.List; import org.eclipse.jgit.api.Git; import org.eclipse.jgit.api.LogCommand; import org.eclipse.jgit.lib.Repository; import org.eclipse.jgit.revwalk.RevCommit; import org.eclipse.jgit.storage.file.FileRepository; public class LogFragment extends PullToRefreshListLoadingFragment<RevCommit> { private static final String TAG = "LogFragment"; public static LogFragment newInstance(File gitdir, List<String> untilRevs, @Nullable String path) { LogFragment f = new LogFragment(); Bundle args = new Bundle(); args.putString(GITDIR, gitdir.getAbsolutePath()); args.putStringArrayList(UNTIL_REVS, newArrayList(untilRevs)); args.putString(PATH, path); f.setArguments(args); return f; } @Inject GitAsyncTaskFactory gitAsyncTaskFactory; @Inject CommitViewHolderFactory commitViewHolderFactory; @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); final PullToRefreshListView pullToRefreshView = getPullToRefreshListView(); pullToRefreshView.setShowIndicator(false); pullToRefreshView.setOnRefreshListener(new OnRefreshListener() { public void onRefresh(PullToRefreshBase refreshView) { try { Fetch fetch = new Fetch(new FileRepository(getArguments().getString(GITDIR)), DEFAULT_REMOTE_NAME); gitAsyncTaskFactory.createTaskFor(fetch, new CasualShortTermLifetime() { public void error(OpNotification errorNotification) { pullToRefreshView .setLastUpdatedLabel("Last Fetch failed: " + errorNotification.getTickerText()); pullToRefreshView.onRefreshComplete(); Toast.makeText(getActivity(), errorNotification.getTickerText(), LENGTH_SHORT).show(); } public void success(OpNotification completionNotification) { pullToRefreshView.setLastUpdatedLabel("Last Fetch: " + formatDateTime(getActivity(), currentTimeMillis(), FORMAT_SHOW_TIME)); refresh(); } }).execute(); } catch (Exception e) { throw new RuntimeException(e); } } }); getListView().setFastScrollEnabled(true); } @Override public Loader<List<RevCommit>> onCreateLoader(int id, Bundle args) { return new AsyncLoader<List<RevCommit>>(getActivity()) { public List<RevCommit> loadInBackground() { Stopwatch stopwatch = new Stopwatch().start(); Bundle args = getArguments(); try { Repository repo = new FileRepository(args.getString(GITDIR)); LogCommand log = new Git(repo).log(); List<String> untilRevs = getArguments().getStringArrayList(UNTIL_REVS); if (untilRevs == null || untilRevs.isEmpty()) { log.all(); } else { for (String untilRev : untilRevs) { log.add(repo.resolve(untilRev)); } } List<RevCommit> sampleRevCommits = newArrayList(log.call()); Log.d(TAG, "Found " + sampleRevCommits.size() + " commits " + stopwatch); return sampleRevCommits; } catch (Exception e) { throw new RuntimeException(e); } } }; } @Override public void onLoadFinished(Loader<List<RevCommit>> loader, List<RevCommit> items) { super.onLoadFinished(loader, items); getPullToRefreshListView().onRefreshComplete(); } @Override protected ViewHoldingListAdapter<RevCommit> adapterFor(List<RevCommit> items) { return new ViewHoldingListAdapter<RevCommit>(items, viewInflatorFor(getActivity(), R.layout.rev_commit_list_item), commitViewHolderFactory); } @Override public void onListItemClick(ListView l, View v, int positionDisturbedByPullToRefresh, long id) { RevCommit commit = ((CommitViewHolder) v.getTag()).getCommit(); startActivity(commitViewIntentFor(getArguments()).commit(commit).toIntent()); } }