1 /* 2 * Copyright (C) 2019 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 package android.textclassifier.cts2; 17 18 import android.app.Activity; 19 import android.app.PendingIntent; 20 import android.app.PendingIntent.CanceledException; 21 import android.content.Intent; 22 import android.os.Bundle; 23 import android.util.Log; 24 import android.view.textclassifier.TextClassificationManager; 25 import android.view.textclassifier.TextClassifier; 26 import android.view.textclassifier.TextLanguage; 27 28 /** 29 * An activity that queries the device's TextClassifierService when started and immediately 30 * terminates itself. 31 */ 32 public final class QueryTextClassifierServiceActivity extends Activity { 33 34 private static final String TAG = QueryTextClassifierServiceActivity.class.getSimpleName(); 35 private PendingIntent mPendingIntent; 36 37 @Override onCreate(Bundle savedInstanceState)38 protected void onCreate(Bundle savedInstanceState) { 39 super.onCreate(savedInstanceState); 40 final Intent intent = getIntent(); 41 mPendingIntent = intent.getParcelableExtra("finishBroadcast"); 42 } 43 44 @Override onResume()45 protected void onResume() { 46 super.onResume(); 47 // Do a TextClassifier call 48 detectLanguageAndFinish(); 49 } 50 detectLanguageAndFinish()51 private void detectLanguageAndFinish() { 52 final String text = "An email address is [email protected]."; 53 new Thread(() -> { 54 final TextLanguage.Request textLanguageRequest = 55 new TextLanguage.Request.Builder(text) 56 .build(); 57 TextClassifier textClassifier = getClassifier(); 58 textClassifier.detectLanguage(textLanguageRequest); 59 // Send finish broadcast 60 if (mPendingIntent != null) { 61 try { 62 mPendingIntent.send(); 63 } catch (CanceledException e) { 64 Log.w(TAG, "Pending intent " + mPendingIntent + " canceled"); 65 } 66 } 67 finish(); 68 }).start(); 69 } 70 getClassifier()71 private TextClassifier getClassifier() { 72 final TextClassificationManager tcm = getSystemService(TextClassificationManager.class); 73 return tcm != null ? tcm.getTextClassifier() : TextClassifier.NO_OP; 74 } 75 } 76