/slidetext/src/com/google/marvin/slidetext/SlideText.java

 1package com.google.marvin.slidetext;
 2
 3
 4import com.google.tts.TTS;
 5
 6import android.app.Activity;
 7import android.media.AudioManager;
 8import android.os.Bundle;
 9import android.view.View;
10
11/**
12 * Enables the user to type text without looking at the phone.
13 * 
14 * There are 4 layers, with each layer having 8 characters arranged in a ring.
15 * Each layer has 2 entry points, arranged at opposite sides of the ring. When
16 * you first touch down, you choose which layer you want to enter by selecting
17 * either of the entry points. The entry points are letters themselves, so after
18 * entering a layer, if you immediately lift up, you will type the character you
19 * entered on. Otherwise, you can proceed through the ring, move over the letter
20 * that you want, and lift up.
21 * 
22 * ASCII diagrams of the layers: Layer 0: a i q _ y u m e
23 * 
24 * Layer 1: a b c h d g f e
25 * 
26 * Layer 2: p i j o k n m l
27 * 
28 * Layer 3: w x q v r u t s
29 * 
30 * Layer 4: , ! MODE _ y . ? z
31 * 
32 * @author clchen@google.com (Charles L. Chen)
33 */
34public class SlideText extends Activity {
35
36  private SlideText self;
37  private SlideTextView mView;
38  public TTS tts;
39
40
41  /** Called when the activity is first created. */
42  @Override
43  public void onCreate(Bundle savedInstanceState) {
44    super.onCreate(savedInstanceState);
45    self = this;
46    tts = new TTS(this, ttsInitListener, true);
47    setVolumeControlStream(AudioManager.STREAM_MUSIC);
48  }
49
50
51  private TTS.InitListener ttsInitListener = new TTS.InitListener() {
52    public void onInit(int version) {
53      String pkgName = SlideText.class.getPackage().getName();
54
55      tts.addSpeech("Nothing to delete", pkgName, R.raw.nothing_to_delete);
56
57      if (mView != null) {
58        mView.setVisibility(View.GONE);
59      }
60      mView = new SlideTextView(self);
61      self.setContentView(mView);
62    }
63  };
64  
65  @Override
66  protected void onDestroy() {
67    tts.shutdown();
68    super.onDestroy();
69  }
70}