SliceBrowser.java revision ac5fe7c617c66850fff75a9fce9979c6e5674b0f
1/* 2 * Copyright 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.example.androidx.slice.demos; 18 19import static com.example.androidx.slice.demos.SampleSliceProvider.URI_PATHS; 20import static com.example.androidx.slice.demos.SampleSliceProvider.getUri; 21 22import android.arch.lifecycle.LiveData; 23import android.content.ContentResolver; 24import android.content.Intent; 25import android.content.pm.ActivityInfo; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageInfo; 28import android.content.pm.PackageManager; 29import android.database.Cursor; 30import android.database.MatrixCursor; 31import android.net.Uri; 32import android.os.Bundle; 33import android.provider.BaseColumns; 34import androidx.annotation.NonNull; 35import androidx.annotation.RequiresApi; 36import androidx.appcompat.app.AppCompatActivity; 37import androidx.appcompat.widget.Toolbar; 38import android.util.ArrayMap; 39import android.util.Log; 40import android.view.Menu; 41import android.view.MenuItem; 42import android.view.SubMenu; 43import android.view.ViewGroup; 44import android.widget.CursorAdapter; 45import android.widget.SearchView; 46import android.widget.SimpleCursorAdapter; 47 48import java.util.ArrayList; 49import java.util.Comparator; 50import java.util.List; 51 52import androidx.slice.Slice; 53import androidx.slice.SliceItem; 54import androidx.slice.widget.EventInfo; 55import androidx.slice.widget.SliceLiveData; 56import androidx.slice.widget.SliceView; 57 58/** 59 * Example use of SliceView. Uses a search bar to select/auto-complete a slice uri which is 60 * then displayed in the selected mode with SliceView. 61 */ 62@RequiresApi(api = 28) 63public class SliceBrowser extends AppCompatActivity implements SliceView.OnSliceActionListener { 64 65 private static final String TAG = "SlicePresenter"; 66 67 private static final String SLICE_METADATA_KEY = "android.metadata.SLICE_URI"; 68 private static final boolean TEST_INTENT = false; 69 private static final boolean TEST_THEMES = false; 70 private static final boolean SCROLLING_ENABLED = true; 71 72 private ArrayList<Uri> mSliceUris = new ArrayList<Uri>(); 73 private int mSelectedMode; 74 private ViewGroup mContainer; 75 private SearchView mSearchView; 76 private SimpleCursorAdapter mAdapter; 77 private SubMenu mTypeMenu; 78 private LiveData<Slice> mSliceLiveData; 79 80 @Override 81 public void onCreate(Bundle savedInstanceState) { 82 super.onCreate(savedInstanceState); 83 setContentView(R.layout.activity_layout); 84 85 Toolbar toolbar = findViewById(R.id.search_toolbar); 86 setSupportActionBar(toolbar); 87 88 // Shows the slice 89 mContainer = findViewById(R.id.slice_preview); 90 mSearchView = findViewById(R.id.search_view); 91 92 final String[] from = new String[]{"uri"}; 93 final int[] to = new int[]{android.R.id.text1}; 94 mAdapter = new SimpleCursorAdapter(this, R.layout.simple_list_item_1, 95 null, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER); 96 mSearchView.setSuggestionsAdapter(mAdapter); 97 mSearchView.setIconifiedByDefault(false); 98 mSearchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() { 99 @Override 100 public boolean onSuggestionClick(int position) { 101 mSearchView.setQuery(((Cursor) mAdapter.getItem(position)).getString(1), true); 102 return true; 103 } 104 105 @Override 106 public boolean onSuggestionSelect(int position) { 107 mSearchView.setQuery(((Cursor) mAdapter.getItem(position)).getString(1), true); 108 return true; 109 } 110 }); 111 mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 112 @Override 113 public boolean onQueryTextSubmit(String s) { 114 addSlice(Uri.parse(s)); 115 mSearchView.clearFocus(); 116 return false; 117 } 118 119 @Override 120 public boolean onQueryTextChange(String s) { 121 populateAdapter(s); 122 return false; 123 } 124 }); 125 126 mSelectedMode = (savedInstanceState != null) 127 ? savedInstanceState.getInt("SELECTED_MODE", SliceView.MODE_LARGE) 128 : SliceView.MODE_LARGE; 129 if (savedInstanceState != null) { 130 mSearchView.setQuery(savedInstanceState.getString("SELECTED_QUERY"), true); 131 } 132 133 grantPackage(getPackageName()); 134 // TODO: Listen for changes. 135 updateAvailableSlices(); 136 if (TEST_INTENT) { 137 addSlice(new Intent("androidx.intent.SLICE_ACTION").setPackage(getPackageName())); 138 } 139 } 140 141 @Override 142 public boolean onCreateOptionsMenu(Menu menu) { 143 mTypeMenu = menu.addSubMenu("Type"); 144 mTypeMenu.setIcon(R.drawable.ic_large); 145 mTypeMenu.getItem().setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); 146 mTypeMenu.add("Shortcut"); 147 mTypeMenu.add("Small"); 148 mTypeMenu.add("Large"); 149 menu.add("Auth"); 150 super.onCreateOptionsMenu(menu); 151 return true; 152 } 153 154 @Override 155 public boolean onOptionsItemSelected(MenuItem item) { 156 switch (item.getTitle().toString()) { 157 case "Auth": 158 authAllSlices(); 159 return true; 160 case "Shortcut": 161 mTypeMenu.setIcon(R.drawable.ic_shortcut); 162 mSelectedMode = SliceView.MODE_SHORTCUT; 163 updateSliceModes(); 164 return true; 165 case "Small": 166 mTypeMenu.setIcon(R.drawable.ic_small); 167 mSelectedMode = SliceView.MODE_SMALL; 168 updateSliceModes(); 169 return true; 170 case "Large": 171 mTypeMenu.setIcon(R.drawable.ic_large); 172 mSelectedMode = SliceView.MODE_LARGE; 173 updateSliceModes(); 174 return true; 175 } 176 return super.onOptionsItemSelected(item); 177 } 178 179 @Override 180 protected void onSaveInstanceState(Bundle outState) { 181 super.onSaveInstanceState(outState); 182 outState.putInt("SELECTED_MODE", mSelectedMode); 183 outState.putString("SELECTED_QUERY", mSearchView.getQuery().toString()); 184 } 185 186 private void authAllSlices() { 187 List<ApplicationInfo> packages = getPackageManager().getInstalledApplications(0); 188 packages.forEach(info -> { 189 grantPackage(info.packageName); 190 }); 191 } 192 193 private void grantPackage(String packageName) { 194 for (int i = 0; i < URI_PATHS.length; i++) { 195 grantUriPermission(packageName, getUri(URI_PATHS[i], getApplicationContext()), 196 Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION 197 | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); 198 } 199 } 200 201 private void updateAvailableSlices() { 202 mSliceUris.clear(); 203 List<PackageInfo> packageInfos = getPackageManager() 204 .getInstalledPackages(PackageManager.GET_ACTIVITIES | PackageManager.GET_META_DATA); 205 for (PackageInfo pi : packageInfos) { 206 ActivityInfo[] activityInfos = pi.activities; 207 if (activityInfos != null) { 208 for (ActivityInfo ai : activityInfos) { 209 if (ai.metaData != null) { 210 String sliceUri = ai.metaData.getString(SLICE_METADATA_KEY); 211 if (sliceUri != null) { 212 mSliceUris.add(Uri.parse(sliceUri)); 213 } 214 } 215 } 216 } 217 } 218 for (int i = 0; i < URI_PATHS.length; i++) { 219 mSliceUris.add(getUri(URI_PATHS[i], getApplicationContext())); 220 } 221 populateAdapter(String.valueOf(mSearchView.getQuery())); 222 } 223 224 private void addSlice(Intent intent) { 225 SliceView v = createSliceView(); 226 v.setTag(intent); 227 mContainer.removeAllViews(); 228 mContainer.addView(v); 229 mSliceLiveData = SliceLiveData.fromIntent(this, intent); 230 v.setMode(mSelectedMode); 231 mSliceLiveData.observe(this, v); 232 } 233 234 private void addSlice(Uri uri) { 235 if (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) { 236 SliceView v = createSliceView(); 237 v.setTag(uri); 238 mContainer.removeAllViews(); 239 mContainer.addView(v); 240 mSliceLiveData = SliceLiveData.fromUri(this, uri); 241 v.setMode(mSelectedMode); 242 mSliceLiveData.observe(this, v); 243 } else { 244 Log.w(TAG, "Invalid uri, skipping slice: " + uri); 245 } 246 } 247 248 private void updateSliceModes() { 249 final int count = mContainer.getChildCount(); 250 for (int i = 0; i < count; i++) { 251 ((SliceView) mContainer.getChildAt(i)).setMode(mSelectedMode); 252 } 253 } 254 255 private void populateAdapter(String query) { 256 final MatrixCursor c = new MatrixCursor(new String[]{BaseColumns._ID, "uri"}); 257 ArrayMap<String, Integer> ranking = new ArrayMap<>(); 258 ArrayList<String> suggestions = new ArrayList(); 259 mSliceUris.forEach(uri -> { 260 String uriString = uri.toString(); 261 if (uriString.contains(query)) { 262 ranking.put(uriString, uriString.indexOf(query)); 263 suggestions.add(uriString); 264 } 265 }); 266 suggestions.sort(new Comparator<String>() { 267 @Override 268 public int compare(String o1, String o2) { 269 return Integer.compare(ranking.get(o1), ranking.get(o2)); 270 } 271 }); 272 for (int i = 0; i < suggestions.size(); i++) { 273 c.addRow(new Object[]{i, suggestions.get(i)}); 274 } 275 mAdapter.changeCursor(c); 276 } 277 278 @Override 279 public void onSliceAction(@NonNull EventInfo info, @NonNull SliceItem item) { 280 Log.w(TAG, "onSliceAction, info: " + info); 281 Log.w(TAG, "onSliceAction, sliceItem: \n" + item); 282 } 283 284 private SliceView createSliceView() { 285 SliceView v = TEST_THEMES 286 ? (SliceView) getLayoutInflater().inflate( 287 R.layout.slice_view, mContainer, false) 288 : new SliceView(getApplicationContext()); 289 v.setOnSliceActionListener(this); 290 if (mSliceLiveData != null) { 291 mSliceLiveData.removeObservers(this); 292 } 293 v.setScrollable(SCROLLING_ENABLED); 294 return v; 295 } 296} 297