Update sdk.atree and samples/browseable for lastest samples release
Synced to developers/samples/android commit 97b2cfe5ba6d8fa8daaf3273141b321b5fe9e910. Change-Id: I360cfa147e71dd519b841df41b4e878f86b9b27b
This commit is contained in:
Trevor Johns
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.directoryselection;
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/**
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* Entity class that represents an directory entry.
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*/
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public class DirectoryEntry {
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public String fileName;
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public String mimeType;
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}
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@@ -0,0 +1,100 @@
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.directoryselection;
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import android.support.v7.widget.RecyclerView;
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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.widget.ImageView;
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import android.widget.TextView;
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import java.util.List;
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/**
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* Provide views to RecyclerView with the directory entries.
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*/
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public class DirectoryEntryAdapter extends RecyclerView.Adapter<DirectoryEntryAdapter.ViewHolder> {
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static final String DIRECTORY_MIME_TYPE = "vnd.android.document/directory";
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private List<DirectoryEntry> mDirectoryEntries;
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/**
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* Provide a reference to the type of views that you are using (custom ViewHolder)
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*/
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public static class ViewHolder extends RecyclerView.ViewHolder {
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private final TextView mFileName;
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private final TextView mMimeType;
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private final ImageView mImageView;
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public ViewHolder(View v) {
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super(v);
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mFileName = (TextView) v.findViewById(R.id.textview_filename);
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mMimeType = (TextView) v.findViewById(R.id.textview_mimetype);
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mImageView = (ImageView) v.findViewById(R.id.entry_image);
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}
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public TextView getFileName() {
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return mFileName;
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}
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public TextView getMimeType() {
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return mMimeType;
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}
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public ImageView getImageView() {
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return mImageView;
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}
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}
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/**
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* Initialize the directory entries of the Adapter.
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*
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* @param directoryEntries an array of {@link DirectoryEntry}.
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*/
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public DirectoryEntryAdapter(List<DirectoryEntry> directoryEntries) {
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mDirectoryEntries = directoryEntries;
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}
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@Override
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public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
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View v = LayoutInflater.from(viewGroup.getContext())
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.inflate(R.layout.directory_item, viewGroup, false);
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return new ViewHolder(v);
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}
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@Override
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public void onBindViewHolder(ViewHolder viewHolder, final int position) {
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viewHolder.getFileName().setText(mDirectoryEntries.get(position).fileName);
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viewHolder.getMimeType().setText(mDirectoryEntries.get(position).mimeType);
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if (DIRECTORY_MIME_TYPE.equals(mDirectoryEntries.get(position).mimeType)) {
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viewHolder.getImageView().setImageResource(R.drawable.ic_folder_grey600_36dp);
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} else {
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viewHolder.getImageView().setImageResource(R.drawable.ic_description_grey600_36dp);
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}
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}
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@Override
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public int getItemCount() {
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return mDirectoryEntries.size();
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}
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public void setDirectoryEntries(List<DirectoryEntry> directoryEntries) {
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mDirectoryEntries = directoryEntries;
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}
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}
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@@ -0,0 +1,37 @@
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/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.directoryselection;
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import android.os.Bundle;
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import android.support.v4.app.FragmentActivity;
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/**
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* Launcher Activity for the Directory Selection sample app.
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*/
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public class DirectorySelectionActivity extends FragmentActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_directory_selection);
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if (savedInstanceState == null) {
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getSupportFragmentManager().beginTransaction()
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.add(R.id.container, DirectorySelectionFragment.newInstance())
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.commit();
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}
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}
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}
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/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.directoryselection;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.content.ContentResolver;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.provider.DocumentsContract;
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import android.provider.DocumentsContract.Document;
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import android.support.v4.app.Fragment;
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import android.support.v7.widget.LinearLayoutManager;
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import android.support.v7.widget.RecyclerView;
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import android.util.Log;
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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.widget.Button;
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import android.widget.EditText;
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import android.widget.TextView;
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import android.widget.Toast;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Fragment that demonstrates how to use Directory Selection API.
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*/
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public class DirectorySelectionFragment extends Fragment {
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private static final String TAG = DirectorySelectionFragment.class.getSimpleName();
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public static final int REQUEST_CODE_OPEN_DIRECTORY = 1;
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Uri mCurrentDirectoryUri;
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TextView mCurrentDirectoryTextView;
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Button mCreateDirectoryButton;
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RecyclerView mRecyclerView;
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DirectoryEntryAdapter mAdapter;
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RecyclerView.LayoutManager mLayoutManager;
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/**
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* Use this factory method to create a new instance of
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* this fragment using the provided parameters.
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*
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* @return A new instance of fragment {@link DirectorySelectionFragment}.
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*/
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public static DirectorySelectionFragment newInstance() {
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DirectorySelectionFragment fragment = new DirectorySelectionFragment();
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return fragment;
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}
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public DirectorySelectionFragment() {
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// Required empty public constructor
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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// Inflate the layout for this fragment
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return inflater.inflate(R.layout.fragment_directory_selection, container, false);
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}
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@Override
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public void onViewCreated(View rootView, Bundle savedInstanceState) {
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super.onViewCreated(rootView, savedInstanceState);
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rootView.findViewById(R.id.button_open_directory)
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.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
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startActivityForResult(intent, REQUEST_CODE_OPEN_DIRECTORY);
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}
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});
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mCurrentDirectoryTextView = (TextView) rootView
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.findViewById(R.id.textview_current_directory);
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mCreateDirectoryButton = (Button) rootView.findViewById(R.id.button_create_directory);
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mCreateDirectoryButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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final EditText editView = new EditText(getActivity());
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new AlertDialog.Builder(getActivity())
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.setTitle(R.string.create_directory)
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.setView(editView)
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.setPositiveButton(android.R.string.ok,
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new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int whichButton) {
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createDirectory(mCurrentDirectoryUri,
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editView.getText().toString());
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updateDirectoryEntries(mCurrentDirectoryUri);
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}
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})
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.setNegativeButton(android.R.string.cancel,
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new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int whichButton) {
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}
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})
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.show();
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}
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});
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mRecyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerview_directory_entries);
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mLayoutManager = new LinearLayoutManager(getActivity());
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mRecyclerView.setLayoutManager(mLayoutManager);
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mRecyclerView.scrollToPosition(0);
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mAdapter = new DirectoryEntryAdapter(new ArrayList<DirectoryEntry>());
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mRecyclerView.setAdapter(mAdapter);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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if (requestCode == REQUEST_CODE_OPEN_DIRECTORY && resultCode == Activity.RESULT_OK) {
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Log.d(TAG, String.format("Open Directory result Uri : %s", data.getData()));
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updateDirectoryEntries(data.getData());
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mAdapter.notifyDataSetChanged();
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}
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}
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/**
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* Updates the current directory of the uri passed as an argument and its children directories.
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* And updates the {@link #mRecyclerView} depending on the contents of the children.
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*
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* @param uri The uri of the current directory.
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*/
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//VisibileForTesting
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void updateDirectoryEntries(Uri uri) {
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ContentResolver contentResolver = getActivity().getContentResolver();
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Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
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DocumentsContract.getTreeDocumentId(uri));
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Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
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DocumentsContract.getTreeDocumentId(uri));
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Cursor docCursor = contentResolver.query(docUri, new String[]{
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Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
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try {
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while (docCursor.moveToNext()) {
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Log.d(TAG, "found doc =" + docCursor.getString(0) + ", mime=" + docCursor
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.getString(1));
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mCurrentDirectoryUri = uri;
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mCurrentDirectoryTextView.setText(docCursor.getString(0));
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mCreateDirectoryButton.setEnabled(true);
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}
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} finally {
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closeQuietly(docCursor);
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}
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Cursor childCursor = contentResolver.query(childrenUri, new String[]{
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Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
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try {
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List<DirectoryEntry> directoryEntries = new ArrayList<>();
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while (childCursor.moveToNext()) {
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Log.d(TAG, "found child=" + childCursor.getString(0) + ", mime=" + childCursor
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.getString(1));
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DirectoryEntry entry = new DirectoryEntry();
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entry.fileName = childCursor.getString(0);
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entry.mimeType = childCursor.getString(1);
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directoryEntries.add(entry);
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}
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mAdapter.setDirectoryEntries(directoryEntries);
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mAdapter.notifyDataSetChanged();
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} finally {
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closeQuietly(childCursor);
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}
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}
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/**
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* Creates a directory under the directory represented as the uri in the argument.
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*
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* @param uri The uri of the directory under which a new directory is created.
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* @param directoryName The directory name of a new directory.
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*/
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//VisibileForTesting
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void createDirectory(Uri uri, String directoryName) {
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ContentResolver contentResolver = getActivity().getContentResolver();
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Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
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DocumentsContract.getTreeDocumentId(uri));
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Uri directoryUri = DocumentsContract
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.createDocument(contentResolver, docUri, Document.MIME_TYPE_DIR, directoryName);
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if (directoryUri != null) {
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Log.i(TAG, String.format(
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"Created directory : %s, Document Uri : %s, Created directory Uri : %s",
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directoryName, docUri, directoryUri));
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Toast.makeText(getActivity(), String.format("Created a directory [%s]",
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directoryName), Toast.LENGTH_SHORT).show();
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} else {
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Log.w(TAG, String.format("Failed to create a directory : %s, Uri %s", directoryName,
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docUri));
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Toast.makeText(getActivity(), String.format("Failed to created a directory [%s] : ",
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directoryName), Toast.LENGTH_SHORT).show();
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}
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}
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public void closeQuietly(AutoCloseable closeable) {
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if (closeable != null) {
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try {
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closeable.close();
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} catch (RuntimeException rethrown) {
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throw rethrown;
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} catch (Exception ignored) {
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}
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}
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}
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}
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Reference in New Issue
Block a user