SignalTileView.java revision c737b9bd5a0bc60fd92150d55f8ddb530697b987 
1/*
2 * Copyright (C) 2014 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.android.systemui.qs;
18
19import android.animation.ValueAnimator;
20import android.content.Context;
21import android.graphics.drawable.Drawable;
22import android.view.View;
23import android.widget.FrameLayout;
24import android.widget.ImageView;
25
26import com.android.systemui.R;
27import com.android.systemui.qs.QSTile.SignalState;
28
29/** View that represents a custom quick settings tile for displaying signal info (wifi/cell). **/
30public final class SignalTileView extends QSTileView {
31    private static final long DEFAULT_DURATION = new ValueAnimator().getDuration();
32    private static final long SHORT_DURATION = DEFAULT_DURATION / 3;
33
34    private FrameLayout mIconFrame;
35    private ImageView mSignal;
36    private ImageView mOverlay;
37    private ImageView mIn;
38    private ImageView mOut;
39
40    private int mWideOverlayIconStartPadding;
41
42    public SignalTileView(Context context) {
43        super(context);
44
45        mIn = addTrafficView(R.drawable.ic_qs_signal_in);
46        mOut = addTrafficView(R.drawable.ic_qs_signal_out);
47
48        mWideOverlayIconStartPadding = context.getResources().getDimensionPixelSize(
49                R.dimen.wide_type_icon_start_padding_qs);
50    }
51
52    private ImageView addTrafficView(int icon) {
53        final ImageView traffic = new ImageView(mContext);
54        traffic.setImageResource(icon);
55        traffic.setAlpha(0f);
56        addView(traffic);
57        return traffic;
58    }
59
60    @Override
61    protected View createIcon() {
62        mIconFrame = new FrameLayout(mContext);
63        mSignal = new ImageView(mContext);
64        mIconFrame.addView(mSignal);
65        mOverlay = new ImageView(mContext);
66        mIconFrame.addView(mOverlay, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
67        return mIconFrame;
68    }
69
70    @Override
71    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
72        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
73        int hs = MeasureSpec.makeMeasureSpec(mIconFrame.getMeasuredHeight(), MeasureSpec.EXACTLY);
74        int ws = MeasureSpec.makeMeasureSpec(mIconFrame.getMeasuredHeight(), MeasureSpec.AT_MOST);
75        mIn.measure(ws, hs);
76        mOut.measure(ws, hs);
77    }
78
79    @Override
80    protected void onLayout(boolean changed, int l, int t, int r, int b) {
81        super.onLayout(changed, l, t, r, b);
82        layoutIndicator(mIn);
83        layoutIndicator(mOut);
84    }
85
86    private void layoutIndicator(View indicator) {
87        boolean isRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
88        int left, right;
89        if (isRtl) {
90            right = mIconFrame.getLeft();
91            left = right - indicator.getMeasuredWidth();
92        } else {
93            left = mIconFrame.getRight();
94            right = left + indicator.getMeasuredWidth();
95        }
96        indicator.layout(
97                left,
98                mIconFrame.getBottom() - indicator.getMeasuredHeight(),
99                right,
100                mIconFrame.getBottom());
101    }
102
103    @Override
104    protected void handleStateChanged(QSTile.State state) {
105        super.handleStateChanged(state);
106        final SignalState s = (SignalState) state;
107        mSignal.setImageResource(s.iconId);
108        if (s.overlayIconId > 0) {
109            mOverlay.setVisibility(VISIBLE);
110            mOverlay.setImageResource(s.overlayIconId);
111        } else {
112            mOverlay.setVisibility(GONE);
113        }
114        if (s.overlayIconId > 0 && s.isOverlayIconWide) {
115            mSignal.setPaddingRelative(mWideOverlayIconStartPadding, 0, 0, 0);
116        } else {
117            mSignal.setPaddingRelative(0, 0, 0, 0);
118        }
119        Drawable drawable = mSignal.getDrawable();
120        if (state.autoMirrorDrawable && drawable != null) {
121            drawable.setAutoMirrored(true);
122        }
123        final boolean shown = isShown();
124        setVisibility(mIn, shown, s.activityIn);
125        setVisibility(mOut, shown, s.activityOut);
126    }
127
128    private void setVisibility(View view, boolean shown, boolean visible) {
129        final float newAlpha = shown && visible ? 1 : 0;
130        if (view.getAlpha() == newAlpha) return;
131        if (shown) {
132            view.animate()
133                .setDuration(visible ? SHORT_DURATION : DEFAULT_DURATION)
134                .alpha(newAlpha)
135                .withLayer()
136                .start();
137        } else {
138            view.setAlpha(newAlpha);
139        }
140    }
141}