SliceBrowser.java revision 731b13dc17ec2ef2d83efdffde6e1c22a2bd2190
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 android.support.annotation.NonNull; 35import android.support.annotation.RequiresApi; 36import android.support.v7.app.AppCompatActivity; 37import android.support.v7.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.app.slice.Slice; 53import androidx.app.slice.SliceItem; 54import androidx.app.slice.widget.EventInfo; 55import androidx.app.slice.widget.SliceLiveData; 56import androidx.app.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.SliceObserver { 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 70 private ArrayList<Uri> mSliceUris = new ArrayList<Uri>(); 71 private int mSelectedMode; 72 private ViewGroup mContainer; 73 private SearchView mSearchView; 74 private SimpleCursorAdapter mAdapter; 75 private SubMenu mTypeMenu; 76 private LiveData<Slice> mSliceLiveData; 77 78 @Override 79 public void onCreate(Bundle savedInstanceState) { 80 super.onCreate(savedInstanceState); 81 setContentView(R.layout.activity_layout); 82 83 Toolbar toolbar = findViewById(R.id.search_toolbar); 84 setSupportActionBar(toolbar); 85 86 // Shows the slice 87 mContainer = findViewById(R.id.slice_preview); 88 mSearchView = findViewById(R.id.search_view); 89 90 final String[] from = new String[]{"uri"}; 91 final int[] to = new int[]{android.R.id.text1}; 92 mAdapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, 93 null, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER); 94 mSearchView.setSuggestionsAdapter(mAdapter); 95 mSearchView.setIconifiedByDefault(false); 96 mSearchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() { 97 @Override 98 public boolean onSuggestionClick(int position) { 99 mSearchView.setQuery(((Cursor) mAdapter.getItem(position)).getString(1), true); 100 return true; 101 } 102 103 @Override 104 public boolean onSuggestionSelect(int position) { 105 mSearchView.setQuery(((Cursor) mAdapter.getItem(position)).getString(1), true); 106 return true; 107 } 108 }); 109 mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 110 @Override 111 public boolean onQueryTextSubmit(String s) { 112 addSlice(Uri.parse(s)); 113 mSearchView.clearFocus(); 114 return false; 115 } 116 117 @Override 118 public boolean onQueryTextChange(String s) { 119 populateAdapter(s); 120 return false; 121 } 122 }); 123 124 mSelectedMode = (savedInstanceState != null) 125 ? savedInstanceState.getInt("SELECTED_MODE", SliceView.MODE_SHORTCUT) 126 : SliceView.MODE_SHORTCUT; 127 if (savedInstanceState != null) { 128 mSearchView.setQuery(savedInstanceState.getString("SELECTED_QUERY"), true); 129 } 130 131 grantPackage(getPackageName()); 132 // TODO: Listen for changes. 133 updateAvailableSlices(); 134 if (TEST_INTENT) { 135 addSlice(new Intent("androidx.intent.SLICE_ACTION").setPackage(getPackageName())); 136 } 137 } 138 139 @Override 140 public boolean onCreateOptionsMenu(Menu menu) { 141 mTypeMenu = menu.addSubMenu("Type"); 142 mTypeMenu.setIcon(R.drawable.ic_shortcut); 143 mTypeMenu.getItem().setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); 144 mTypeMenu.add("Shortcut"); 145 mTypeMenu.add("Small"); 146 mTypeMenu.add("Large"); 147 menu.add("Auth"); 148 super.onCreateOptionsMenu(menu); 149 return true; 150 } 151 152 @Override 153 public boolean onOptionsItemSelected(MenuItem item) { 154 switch (item.getTitle().toString()) { 155 case "Auth": 156 authAllSlices(); 157 return true; 158 case "Shortcut": 159 mTypeMenu.setIcon(R.drawable.ic_shortcut); 160 mSelectedMode = SliceView.MODE_SHORTCUT; 161 updateSliceModes(); 162 return true; 163 case "Small": 164 mTypeMenu.setIcon(R.drawable.ic_small); 165 mSelectedMode = SliceView.MODE_SMALL; 166 updateSliceModes(); 167 return true; 168 case "Large": 169 mTypeMenu.setIcon(R.drawable.ic_large); 170 mSelectedMode = SliceView.MODE_LARGE; 171 updateSliceModes(); 172 return true; 173 } 174 return super.onOptionsItemSelected(item); 175 } 176 177 @Override 178 protected void onSaveInstanceState(Bundle outState) { 179 super.onSaveInstanceState(outState); 180 outState.putInt("SELECTED_MODE", mSelectedMode); 181 outState.putString("SELECTED_QUERY", mSearchView.getQuery().toString()); 182 } 183 184 private void authAllSlices() { 185 List<ApplicationInfo> packages = getPackageManager().getInstalledApplications(0); 186 packages.forEach(info -> { 187 grantPackage(info.packageName); 188 }); 189 } 190 191 private void grantPackage(String packageName) { 192 for (int i = 0; i < URI_PATHS.length; i++) { 193 grantUriPermission(packageName, getUri(URI_PATHS[i], getApplicationContext()), 194 Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION 195 | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); 196 } 197 } 198 199 private void updateAvailableSlices() { 200 mSliceUris.clear(); 201 List<PackageInfo> packageInfos = getPackageManager() 202 .getInstalledPackages(PackageManager.GET_ACTIVITIES | PackageManager.GET_META_DATA); 203 for (PackageInfo pi : packageInfos) { 204 ActivityInfo[] activityInfos = pi.activities; 205 if (activityInfos != null) { 206 for (ActivityInfo ai : activityInfos) { 207 if (ai.metaData != null) { 208 String sliceUri = ai.metaData.getString(SLICE_METADATA_KEY); 209 if (sliceUri != null) { 210 mSliceUris.add(Uri.parse(sliceUri)); 211 } 212 } 213 } 214 } 215 } 216 for (int i = 0; i < URI_PATHS.length; i++) { 217 mSliceUris.add(getUri(URI_PATHS[i], getApplicationContext())); 218 } 219 populateAdapter(String.valueOf(mSearchView.getQuery())); 220 } 221 222 private void addSlice(Intent intent) { 223 SliceView v = new SliceView(getApplicationContext()); 224 v.setSliceObserver(this); 225 v.setTag(intent); 226 if (mSliceLiveData != null) { 227 mSliceLiveData.removeObservers(this); 228 } 229 mContainer.removeAllViews(); 230 mContainer.addView(v); 231 mSliceLiveData = SliceLiveData.fromIntent(this, intent); 232 v.setMode(mSelectedMode); 233 mSliceLiveData.observe(this, v); 234 } 235 236 private void addSlice(Uri uri) { 237 if (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) { 238 SliceView v = new SliceView(getApplicationContext()); 239 v.setSliceObserver(this); 240 v.setTag(uri); 241 if (mSliceLiveData != null) { 242 mSliceLiveData.removeObservers(this); 243 } 244 mContainer.removeAllViews(); 245 mContainer.addView(v); 246 mSliceLiveData = SliceLiveData.fromUri(this, uri); 247 v.setMode(mSelectedMode); 248 mSliceLiveData.observe(this, v); 249 } else { 250 Log.w(TAG, "Invalid uri, skipping slice: " + uri); 251 } 252 } 253 254 private void updateSliceModes() { 255 final int count = mContainer.getChildCount(); 256 for (int i = 0; i < count; i++) { 257 ((SliceView) mContainer.getChildAt(i)).setMode(mSelectedMode); 258 } 259 } 260 261 private void populateAdapter(String query) { 262 final MatrixCursor c = new MatrixCursor(new String[]{BaseColumns._ID, "uri"}); 263 ArrayMap<String, Integer> ranking = new ArrayMap<>(); 264 ArrayList<String> suggestions = new ArrayList(); 265 mSliceUris.forEach(uri -> { 266 String uriString = uri.toString(); 267 if (uriString.contains(query)) { 268 ranking.put(uriString, uriString.indexOf(query)); 269 suggestions.add(uriString); 270 } 271 }); 272 suggestions.sort(new Comparator<String>() { 273 @Override 274 public int compare(String o1, String o2) { 275 return Integer.compare(ranking.get(o1), ranking.get(o2)); 276 } 277 }); 278 for (int i = 0; i < suggestions.size(); i++) { 279 c.addRow(new Object[]{i, suggestions.get(i)}); 280 } 281 mAdapter.changeCursor(c); 282 } 283 284 @Override 285 public void onSliceAction(@NonNull EventInfo info, @NonNull SliceItem item) { 286 Log.w(TAG, "onSliceAction, info: " + info); 287 Log.w(TAG, "onSliceAction, sliceItem: \n" + item); 288 } 289} 290