SpeechOrbView.java revision 49bd8747a667ae5f45a132d803cc18a80e963545 
1package android.support.v17.leanback.widget;
2
3import android.content.Context;
4import android.content.res.Resources;
5import android.graphics.Color;
6import android.support.v17.leanback.R;
7import android.util.AttributeSet;
8
9public class SpeechOrbView extends SearchOrbView {
10    private final float mSoundLevelMaxZoom;
11    private final Colors mListeningOrbColors;
12    private final Colors mNotListeningOrbColors;
13
14    private int mCurrentLevel = 0;
15    private boolean mListening = false;
16
17    public SpeechOrbView(Context context) {
18        this(context, null);
19    }
20
21    public SpeechOrbView(Context context, AttributeSet attrs) {
22        this(context, attrs, 0);
23    }
24
25    public SpeechOrbView(Context context, AttributeSet attrs, int defStyle) {
26        super(context, attrs, defStyle);
27
28        Resources resources = context.getResources();
29        mSoundLevelMaxZoom =
30                resources.getFraction(R.fraction.lb_search_bar_speech_orb_max_level_zoom, 1, 1);
31
32        mNotListeningOrbColors = new Colors(resources.getColor(R.color.lb_speech_orb_not_recording),
33                resources.getColor(R.color.lb_speech_orb_not_recording_pulsed),
34                resources.getColor(R.color.lb_speech_orb_not_recording_icon));
35        mListeningOrbColors = new Colors(resources.getColor(R.color.lb_speech_orb_recording),
36                resources.getColor(R.color.lb_speech_orb_recording),
37                Color.TRANSPARENT);
38
39        showNotListening();
40    }
41
42    @Override
43    int getLayoutResourceId() {
44        return R.layout.lb_speech_orb;
45    }
46
47    public void showListening() {
48        setOrbColors(mListeningOrbColors);
49        setOrbIcon(getResources().getDrawable(R.drawable.lb_ic_search_mic));
50        // Assume focused
51        animateOnFocus(true);
52        enableOrbColorAnimation(false);
53        scaleOrbViewOnly(1f);
54        mListening = true;
55    }
56
57    public void showNotListening() {
58        setOrbColors(mNotListeningOrbColors);
59        setOrbIcon(getResources().getDrawable(R.drawable.lb_ic_search_mic_out));
60        animateOnFocus(hasFocus());
61        scaleOrbViewOnly(1f);
62        mListening = false;
63    }
64
65    public void setSoundLevel(int level) {
66        if (!mListening) return;
67
68        // Either ease towards the target level, or decay away from it depending on whether
69        // its higher or lower than the current.
70        if (level > mCurrentLevel) {
71            mCurrentLevel = mCurrentLevel + ((level - mCurrentLevel) / 2);
72        } else {
73            mCurrentLevel = (int) (mCurrentLevel * 0.7f);
74        }
75
76        float zoom = getFocusedZoom() +
77                ((mSoundLevelMaxZoom - getFocusedZoom()) * mCurrentLevel) / 100;
78
79        scaleOrbViewOnly(zoom);
80    }
81}
82