android:模拟水波效果的自定义View

Github地址：https://github.com/nuptboyzhb/WaterWaveView

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1.先看效果

2.再看关键代码

描绘函数y = Asin(wx+d)+offset

/** * 使用路径描绘绘制的区域 * * @return */private Path getFristWavePath() {// 绘制区域1的路径if (firstWavePath == null) {firstWavePath = new Path();}firstWavePath.reset();firstWavePath.moveTo(0, height);// 移动到左下角的点for (float x = 0; x <= width; x += X_STEP) {float y = (float) (waveHeight * Math.sin(omega * x + moveWave) + waveHeight)+ heightOffset;firstWavePath.lineTo(x, y);}firstWavePath.lineTo(width, 0);firstWavePath.lineTo(width, height);return firstWavePath;}

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告诉自己，我这次失败了，