SliceBrowser.java revision c939d23976c29c0a60c6fca760e9fcb53d8f987e
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.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 71 private ArrayList<Uri> mSliceUris = new ArrayList<Uri>(); 72 private int mSelectedMode; 73 private ViewGroup mContainer; 74 private SearchView mSearchView; 75 private SimpleCursorAdapter mAdapter; 76 private SubMenu mTypeMenu; 77 private LiveData<Slice> mSliceLiveData; 78 79 @Override 80 public void onCreate(Bundle savedInstanceState) { 81 super.onCreate(savedInstanceState); 82 setContentView(R.layout.activity_layout); 83 84 Toolbar toolbar = findViewById(R.id.search_toolbar); 85 setSupportActionBar(toolbar); 86 87 // Shows the slice 88 mContainer = findViewById(R.id.slice_preview); 89 mSearchView = findViewById(R.id.search_view); 90 91 final String[] from = new String[]{"uri"}; 92 final int[] to = new int[]{android.R.id.text1}; 93 mAdapter = new SimpleCursorAdapter(this, R.layout.simple_list_item_1, 94 null, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER); 95 mSearchView.setSuggestionsAdapter(mAdapter); 96 mSearchView.setIconifiedByDefault(false); 97 mSearchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() { 98 @Override 99 public boolean onSuggestionClick(int position) { 100 mSearchView.setQuery(((Cursor) mAdapter.getItem(position)).getString(1), true); 101 return true; 102 } 103 104 @Override 105 public boolean onSuggestionSelect(int position) { 106 mSearchView.setQuery(((Cursor) mAdapter.getItem(position)).getString(1), true); 107 return true; 108 } 109 }); 110 mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 111 @Override 112 public boolean onQueryTextSubmit(String s) { 113 addSlice(Uri.parse(s)); 114 mSearchView.clearFocus(); 115 return false; 116 } 117 118 @Override 119 public boolean onQueryTextChange(String s) { 120 populateAdapter(s); 121 return false; 122 } 123 }); 124 125 mSelectedMode = (savedInstanceState != null) 126 ? savedInstanceState.getInt("SELECTED_MODE", SliceView.MODE_LARGE) 127 : SliceView.MODE_LARGE; 128 if (savedInstanceState != null) { 129 mSearchView.setQuery(savedInstanceState.getString("SELECTED_QUERY"), true); 130 } 131 132 grantPackage(getPackageName()); 133 // TODO: Listen for changes. 134 updateAvailableSlices(); 135 if (TEST_INTENT) { 136 addSlice(new Intent("androidx.intent.SLICE_ACTION").setPackage(getPackageName())); 137 } 138 } 139 140 @Override 141 public boolean onCreateOptionsMenu(Menu menu) { 142 mTypeMenu = menu.addSubMenu("Type"); 143 mTypeMenu.setIcon(R.drawable.ic_large); 144 mTypeMenu.getItem().setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); 145 mTypeMenu.add("Shortcut"); 146 mTypeMenu.add("Small"); 147 mTypeMenu.add("Large"); 148 menu.add("Auth"); 149 super.onCreateOptionsMenu(menu); 150 return true; 151 } 152 153 @Override 154 public boolean onOptionsItemSelected(MenuItem item) { 155 switch (item.getTitle().toString()) { 156 case "Auth": 157 authAllSlices(); 158 return true; 159 case "Shortcut": 160 mTypeMenu.setIcon(R.drawable.ic_shortcut); 161 mSelectedMode = SliceView.MODE_SHORTCUT; 162 updateSliceModes(); 163 return true; 164 case "Small": 165 mTypeMenu.setIcon(R.drawable.ic_small); 166 mSelectedMode = SliceView.MODE_SMALL; 167 updateSliceModes(); 168 return true; 169 case "Large": 170 mTypeMenu.setIcon(R.drawable.ic_large); 171 mSelectedMode = SliceView.MODE_LARGE; 172 updateSliceModes(); 173 return true; 174 } 175 return super.onOptionsItemSelected(item); 176 } 177 178 @Override 179 protected void onSaveInstanceState(Bundle outState) { 180 super.onSaveInstanceState(outState); 181 outState.putInt("SELECTED_MODE", mSelectedMode); 182 outState.putString("SELECTED_QUERY", mSearchView.getQuery().toString()); 183 } 184 185 private void authAllSlices() { 186 List<ApplicationInfo> packages = getPackageManager().getInstalledApplications(0); 187 packages.forEach(info -> { 188 grantPackage(info.packageName); 189 }); 190 } 191 192 private void grantPackage(String packageName) { 193 for (int i = 0; i < URI_PATHS.length; i++) { 194 grantUriPermission(packageName, getUri(URI_PATHS[i], getApplicationContext()), 195 Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION 196 | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); 197 } 198 } 199 200 private void updateAvailableSlices() { 201 mSliceUris.clear(); 202 List<PackageInfo> packageInfos = getPackageManager() 203 .getInstalledPackages(PackageManager.GET_ACTIVITIES | PackageManager.GET_META_DATA); 204 for (PackageInfo pi : packageInfos) { 205 ActivityInfo[] activityInfos = pi.activities; 206 if (activityInfos != null) { 207 for (ActivityInfo ai : activityInfos) { 208 if (ai.metaData != null) { 209 String sliceUri = ai.metaData.getString(SLICE_METADATA_KEY); 210 if (sliceUri != null) { 211 mSliceUris.add(Uri.parse(sliceUri)); 212 } 213 } 214 } 215 } 216 } 217 for (int i = 0; i < URI_PATHS.length; i++) { 218 mSliceUris.add(getUri(URI_PATHS[i], getApplicationContext())); 219 } 220 populateAdapter(String.valueOf(mSearchView.getQuery())); 221 } 222 223 private void addSlice(Intent intent) { 224 SliceView v = createSliceView(); 225 v.setTag(intent); 226 mContainer.removeAllViews(); 227 mContainer.addView(v); 228 mSliceLiveData = SliceLiveData.fromIntent(this, intent); 229 v.setMode(mSelectedMode); 230 mSliceLiveData.observe(this, v); 231 } 232 233 private void addSlice(Uri uri) { 234 if (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) { 235 SliceView v = createSliceView(); 236 v.setTag(uri); 237 mContainer.removeAllViews(); 238 mContainer.addView(v); 239 mSliceLiveData = SliceLiveData.fromUri(this, uri); 240 v.setMode(mSelectedMode); 241 mSliceLiveData.observe(this, v); 242 } else { 243 Log.w(TAG, "Invalid uri, skipping slice: " + uri); 244 } 245 } 246 247 private void updateSliceModes() { 248 final int count = mContainer.getChildCount(); 249 for (int i = 0; i < count; i++) { 250 ((SliceView) mContainer.getChildAt(i)).setMode(mSelectedMode); 251 } 252 } 253 254 private void populateAdapter(String query) { 255 final MatrixCursor c = new MatrixCursor(new String[]{BaseColumns._ID, "uri"}); 256 ArrayMap<String, Integer> ranking = new ArrayMap<>(); 257 ArrayList<String> suggestions = new ArrayList(); 258 mSliceUris.forEach(uri -> { 259 String uriString = uri.toString(); 260 if (uriString.contains(query)) { 261 ranking.put(uriString, uriString.indexOf(query)); 262 suggestions.add(uriString); 263 } 264 }); 265 suggestions.sort(new Comparator<String>() { 266 @Override 267 public int compare(String o1, String o2) { 268 return Integer.compare(ranking.get(o1), ranking.get(o2)); 269 } 270 }); 271 for (int i = 0; i < suggestions.size(); i++) { 272 c.addRow(new Object[]{i, suggestions.get(i)}); 273 } 274 mAdapter.changeCursor(c); 275 } 276 277 @Override 278 public void onSliceAction(@NonNull EventInfo info, @NonNull SliceItem item) { 279 Log.w(TAG, "onSliceAction, info: " + info); 280 Log.w(TAG, "onSliceAction, sliceItem: \n" + item); 281 } 282 283 private SliceView createSliceView() { 284 SliceView v = TEST_THEMES 285 ? (SliceView) getLayoutInflater().inflate( 286 R.layout.slice_view, mContainer, false) 287 : new SliceView(getApplicationContext()); 288 v.setOnSliceActionListener(this); 289 if (mSliceLiveData != null) { 290 mSliceLiveData.removeObservers(this); 291 } 292 return v; 293 } 294} 295