Android波纹扩散效果之仿支付宝咻一咻功能实现波纹扩散特效

package com.lgl.whew;

/**
* 圆形头像
* Created by LGL on 2016/1/12.
*/
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.NinePatchDrawable;
import android.util.AttributeSet;
import android.widget.ImageView;
/**
* 圆形ImageView，可设置最多两个宽度不同且颜色不同的圆形边框。
*
* 设置颜色在xml布局文件中由自定义属性配置参数指定
*/
public class RoundImageView extends ImageView {
private int mBorderThickness = 0;
private Context mContext;
private int defaultColor = 0xFFFFFFFF;
// 如果只有其中一个有值，则只画一个圆形边框
private int mBorderOutsideColor = 0;
private int mBorderInsideColor = 0;
// 控件默认长、宽
private int defaultWidth = 0;
private int defaultHeight = 0;
public RoundImageView(Context context) {
super(context);
mCOntext= context;
}
public RoundImageView(Context context, AttributeSet attrs) {
super(context, attrs);
mCOntext= context;
setCustomAttributes(attrs);
}
public RoundImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mCOntext= context;
setCustomAttributes(attrs);
}
private void setCustomAttributes(AttributeSet attrs) {
TypedArray a = mContext.obtainStyledAttributes(attrs,
R.styleable.roundedimageview);
mBorderThickness = a.getDimensionPixelSize(
R.styleable.roundedimageview_border_thickness, 0);
mBorderOutsideColor = a
.getColor(R.styleable.roundedimageview_border_outside_color,
defaultColor);
mBorderInsideColor = a.getColor(
R.styleable.roundedimageview_border_inside_color, defaultColor);
}
@Override
protected void onDraw(Canvas canvas) {
Drawable drawable = getDrawable();
if (drawable == null) {
return;
}
if (getWidth() == 0 || getHeight() == 0) {
return;
}
this.measure(0, 0);
if (drawable.getClass() == NinePatchDrawable.class)
return;
Bitmap b = ((BitmapDrawable) drawable).getBitmap();
Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);
if (defaultWidth == 0) {
defaultWidth = getWidth();
}
if (defaultHeight == 0) {
defaultHeight = getHeight();
}
int radius = 0;
if (mBorderInsideColor != defaultColor
&& mBorderOutsideColor != defaultColor) {// 定义画两个边框，分别为外圆边框和内圆边框
radius = (defaultWidth  bmpWidth) {// 高大于宽
squareWidth = squareHeight = bmpWidth;
x = 0;
y = (bmpHeight - bmpWidth) / 2;
// 截取正方形图片
squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth,
squareHeight);
} else if (bmpHeight 

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

xmlns:imagecOntrol=http://schemas.android.com/apk/res-auto

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

package com.lgl.whew;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
/**
* 模仿咻一咻
* 
* @author LGL
*
*/
public class WhewView extends View {
private Paint paint;
private int maxWidth = 255;
// 是否运行
private boolean isStarting = false;
private List alphaList = new ArrayList();
private List startWidthList = new ArrayList();
public WhewView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
// TODO Auto-generated constructor stub
init();
}
public WhewView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init();
}
public WhewView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init();
}
private void init() {
paint = new Paint();
// 设置博文的颜色
paint.setColor(0x0059ccf5);
alphaList.add("255");// 圆心的不透明度
startWidthList.add("0");
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
setBackgroundColor(Color.TRANSPARENT);// 颜色：完全透明
// 依次绘制 同心圆
for (int i = 0; i  0 && startWidth 

package com.lgl.whew;
import android.app.Activity;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
private WhewView wv;
private RoundImageView my_photo;
private static final int Nou = 1;
// 声明一个SoundPool
private SoundPool sp;
// 定义一个整型用load（）；来设置suondIDf
private int music;
private Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
if (msg.what == Nou) {
// 每隔10s响一次
handler.sendEmptyMessageDelayed(Nou, 5000);
sp.play(music, 1, 1, 0, 0, 1);
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
private void initView() {
// 第一个参数为同时播放数据流的最大个数，第二数据流类型，第三为声音质量
sp = new SoundPool(10, AudioManager.STREAM_SYSTEM, 5);
// 把你的声音素材放到res/raw里，第2个参数即为资源文件，第3个为音乐的优先级
music = sp.load(this, R.raw.hongbao_gq, 1);
wv = (WhewView) findViewById(R.id.wv);
my_photo = (RoundImageView) findViewById(R.id.my_photo);
my_photo.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(wv.isStarting()){
//如果动画正在运行就停止，否则就继续执行
wv.stop();
//结束进程
handler.removeMessages(Nou);
}else{
// 执行动画
wv.start();
handler.sendEmptyMessage(Nou);
}
}
});
}
}

@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
handler.removeMessages(Nou);
}