1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.test.hwui;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Bundle;
import android.view.View;
@SuppressWarnings({"UnusedDeclaration"})
public class ScaledTextActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final ScaledTextView view = new ScaledTextView(this);
setContentView(view);
ObjectAnimator animation = ObjectAnimator.ofFloat(view, "textScale", 1.0f, 10.0f);
animation.setDuration(3000);
animation.setRepeatCount(ObjectAnimator.INFINITE);
animation.setRepeatMode(ObjectAnimator.REVERSE);
animation.start();
}
public static class ScaledTextView extends View {
private final Paint mPaint;
private float mScale = 1.0f;
public ScaledTextView(Context c) {
super(c);
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setTextSize(20.0f);
}
public float getTextScale() {
return mScale;
}
public void setTextScale(float scale) {
mScale = scale;
invalidate();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawARGB(255, 255, 255, 255);
canvas.drawText("Hello libhwui!", 30.0f, 30.0f, mPaint);
canvas.translate(0.0f, 50.0f);
canvas.save();
canvas.scale(mScale, mScale);
canvas.drawText("Hello libhwui!", 30.0f, 30.0f, mPaint);
canvas.restore();
}
}
}
|
