| /* |
| * Copyright (C) 2020 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.providers.media.tools.dialogs; |
| |
| import static android.Manifest.permission.READ_EXTERNAL_STORAGE; |
| import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE; |
| import static android.content.pm.PackageManager.PERMISSION_GRANTED; |
| |
| import android.app.Activity; |
| import android.app.PendingIntent; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.provider.MediaStore; |
| import android.provider.MediaStore.Files.FileColumns; |
| import android.widget.Button; |
| import android.widget.LinearLayout; |
| import android.widget.NumberPicker; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| |
| public class DialogsActivity extends Activity { |
| private LinearLayout mBody; |
| private LinearLayout mSpinners; |
| |
| private NumberPicker mAudioCount; |
| private NumberPicker mVideoCount; |
| private NumberPicker mImageCount; |
| |
| private final ArrayList<Uri> mAudio = new ArrayList<>(); |
| private final ArrayList<Uri> mVideo = new ArrayList<>(); |
| private final ArrayList<Uri> mImage = new ArrayList<>(); |
| |
| private final Supplier<Collection<Uri>> mRequestItems = () -> { |
| final ArrayList<Uri> uris = new ArrayList<>(); |
| uris.addAll(mAudio.stream().limit(mAudioCount.getValue()).collect(Collectors.toList())); |
| uris.addAll(mVideo.stream().limit(mVideoCount.getValue()).collect(Collectors.toList())); |
| uris.addAll(mImage.stream().limit(mImageCount.getValue()).collect(Collectors.toList())); |
| return uris; |
| }; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| if (checkSelfPermission(READ_EXTERNAL_STORAGE) != PERMISSION_GRANTED |
| || checkSelfPermission(WRITE_EXTERNAL_STORAGE) != PERMISSION_GRANTED) { |
| requestPermissions(new String[] { READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE }, 42); |
| finish(); |
| return; |
| } |
| |
| mBody = new LinearLayout(this); |
| mBody.setOrientation(LinearLayout.VERTICAL); |
| setContentView(mBody); |
| |
| final TextView header = new TextView(this); |
| header.setText("Select the number of items to include in the request using the spinners " |
| + "below; each spinnner in order selects the number audio, video, " |
| + "and image items, respectively."); |
| mBody.addView(header); |
| |
| mSpinners = new LinearLayout(this); |
| mSpinners.setOrientation(LinearLayout.HORIZONTAL); |
| mBody.addView(mSpinners); |
| |
| mAudioCount = addSpinner(); |
| mVideoCount = addSpinner(); |
| mImageCount = addSpinner(); |
| |
| addAction("Request write", () -> { |
| return MediaStore.createWriteRequest(getContentResolver(), mRequestItems.get()); |
| }); |
| addAction("Request trash", () -> { |
| return MediaStore.createTrashRequest(getContentResolver(), mRequestItems.get(), true); |
| }); |
| addAction("Request untrash", () -> { |
| return MediaStore.createTrashRequest(getContentResolver(), mRequestItems.get(), false); |
| }); |
| addAction("Request delete", () -> { |
| return MediaStore.createDeleteRequest(getContentResolver(), mRequestItems.get()); |
| }); |
| |
| new BackgroundTask().execute(); |
| } |
| |
| private class BackgroundTask extends AsyncTask<Void, Void, Void> { |
| @Override |
| protected Void doInBackground(Void... params) { |
| try (Cursor c = getContentResolver().query( |
| MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY), |
| new String[] { FileColumns._ID, FileColumns.MEDIA_TYPE }, null, null, null)) { |
| while (c.moveToNext()) { |
| final long id = c.getLong(0); |
| final int mediaType = c.getInt(1); |
| switch (mediaType) { |
| case FileColumns.MEDIA_TYPE_AUDIO: |
| mAudio.add(MediaStore.Audio.Media |
| .getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY, id)); |
| break; |
| case FileColumns.MEDIA_TYPE_VIDEO: |
| mVideo.add(MediaStore.Video.Media |
| .getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY, id)); |
| break; |
| case FileColumns.MEDIA_TYPE_IMAGE: |
| mImage.add(MediaStore.Images.Media |
| .getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY, id)); |
| break; |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| protected void onPostExecute(Void results) { |
| mAudioCount.setMaxValue(mAudio.size()); |
| mVideoCount.setMaxValue(mVideo.size()); |
| mImageCount.setMaxValue(mImage.size()); |
| } |
| } |
| |
| private NumberPicker addSpinner() { |
| final NumberPicker spinner = new NumberPicker(this); |
| spinner.setValue(0); |
| spinner.setMaxValue(0); |
| mSpinners.addView(spinner); |
| return spinner; |
| } |
| |
| private Button addAction(String title, Supplier<PendingIntent> supplier) { |
| final Button button = new Button(this); |
| button.setText(title); |
| button.setOnClickListener((v) -> { |
| try { |
| startIntentSenderForResult(supplier.get().getIntentSender(), 42, null, 0, 0, 0); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| }); |
| mBody.addView(button); |
| return button; |
| } |
| } |