SpeechOrbView.java revision 9325acc6799fbb0bef84a5ac9b25bfca0701420f 
1package android.support.v17.leanback.widget;
2
3import android.content.Context;
4import android.content.res.Resources;
5import android.graphics.Rect;
6import android.graphics.drawable.GradientDrawable;
7import android.support.v17.leanback.R;
8import android.util.AttributeSet;
9import android.view.LayoutInflater;
10import android.view.View;
11import android.widget.FrameLayout;
12import android.widget.ImageView;
13
14public class SpeechOrbView extends FrameLayout implements View.OnClickListener {
15    private OnClickListener mListener;
16    private View mSpeechOrbView;
17    private final float mFocusedZoom;
18    private final float mSoundLevelMaxZoom;
19    private final int mNotRecordingColor;
20    private final int mRecordingColor;
21    private final int mNotRecordingIconColor;
22    private ImageView mIcon;
23
24    private int mCurrentLevel = 0;
25    private boolean mListening = false;
26
27    public SpeechOrbView(Context context) {
28        this(context, null);
29    }
30
31    public SpeechOrbView(Context context, AttributeSet attrs) {
32        this(context, attrs, 0);
33    }
34
35    public SpeechOrbView(Context context, AttributeSet attrs, int defStyle) {
36        super(context, attrs, defStyle);
37
38        LayoutInflater inflater = (LayoutInflater) context
39                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
40        View root = inflater.inflate(R.layout.lb_speech_orb, this, true);
41        mSpeechOrbView = root.findViewById(R.id.lb_speech_orb);
42        mIcon = (ImageView)root.findViewById(R.id.lb_speech_icon);
43
44        setFocusable(true);
45        setClipChildren(false);
46
47        Resources resources = context.getResources();
48        mFocusedZoom =
49                resources.getFraction(R.fraction.lb_search_bar_speech_orb_focused_zoom, 1, 1);
50        mSoundLevelMaxZoom =
51                resources.getFraction(R.fraction.lb_search_bar_speech_orb_max_level_zoom, 1, 1);
52        mNotRecordingColor = resources.getColor(R.color.lb_speech_orb_not_recording);
53        mRecordingColor = resources.getColor(R.color.lb_speech_orb_recording);
54        mNotRecordingIconColor = resources.getColor(R.color.lb_speech_orb_not_recording_icon);
55
56        setOnClickListener(this);
57        showNotListening();
58    }
59
60    @Override
61    public void onClick(View view) {
62        if (null != mListener) {
63            mListener.onClick(view);
64        }
65    }
66
67    @Override
68    protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) {
69        super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
70        final float zoom = gainFocus ? mFocusedZoom : 1f;
71        mSpeechOrbView.animate().scaleX(zoom).scaleY(zoom).setDuration(200).start();
72    }
73
74    /**
75     * Set the on click listener for the orb
76     * @param listener The listener.
77     */
78    public void setOnOrbClickedListener(OnClickListener listener) {
79        mListener = listener;
80    }
81
82    public void showListening() {
83        setOrbColor(mRecordingColor);
84        mIcon.setImageResource(R.drawable.lb_ic_search_mic);
85        mIcon.setColorFilter(android.graphics.Color.TRANSPARENT);
86        mSpeechOrbView.setScaleX(1f);
87        mSpeechOrbView.setScaleY(1f);
88        mListening = true;
89    }
90
91    public void showNotListening() {
92        setOrbColor(mNotRecordingColor);
93        mIcon.setImageResource(R.drawable.lb_ic_search_mic_out);
94        mIcon.setColorFilter(mNotRecordingIconColor);
95        mSpeechOrbView.setScaleX(1f);
96        mSpeechOrbView.setScaleY(1f);
97        mListening = false;
98    }
99
100    public void setSoundLevel(int level) {
101        if (!mListening) return;
102
103        // Either ease towards the target level, or decay away from it depending on whether
104        // its higher or lower than the current.
105        if (level > mCurrentLevel) {
106            mCurrentLevel = mCurrentLevel + ((level - mCurrentLevel) / 4);
107        } else {
108            mCurrentLevel = (int) (mCurrentLevel * 0.95f);
109        }
110
111        float zoom = mFocusedZoom + ((mSoundLevelMaxZoom - mFocusedZoom) * mCurrentLevel) / 100;
112        mSpeechOrbView.setScaleX(zoom);
113        mSpeechOrbView.setScaleY(zoom);
114    }
115
116    public void setOrbColor(int color) {
117        if (mSpeechOrbView.getBackground() instanceof GradientDrawable) {
118            ((GradientDrawable) mSpeechOrbView.getBackground()).setColor(color);
119        }
120    }
121
122}
123