设置屏幕方向为横向，一些设置属性没有效果

[RealMoMo]

add 建议：dispatchDraw方法临时变量较多，其实均可以去掉。测试在一些低端机，动画会流畅很多。

int height; //在onsiezechange初始化

 @Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
        if (mltWave.size() > 0 && mPaint != null) {
            //View thisView = this;
            //int height = thisView.getHeight();
            //long thisTime = System.currentTimeMillis();

            for (Wave wave : mltWave) {
                mMatrix.reset();
                canvas.save();
                if (wave.velocity != 0) {
                    //float offsetX = (wave.offsetX - (wave.velocity * mVelocity * (thisTime - mLastTime) / 1000f));
                    // realmo test : ((thisTime - mLastTime) / 1000f) = 0.085左右
//                    float offsetX = (wave.offsetX - (wave.velocity * mVelocity * 0.085f));
//                    if (-wave.velocity > 0) {
//                        offsetX %= wave.width / 2;
//                    } else {
//                        while (offsetX < 0) {
//                            offsetX += (wave.width / 2);
//                        }
//                    }
//                    wave.offsetX = offsetX;
//                    mMatrix.setTranslate(offsetX, (1 - mProgress) * height);//wave.offsetX =
//                    canvas.translate(-offsetX, -wave.offsetY - (1 - mProgress) * height);

                    //optimized
                    wave.offsetX = (wave.offsetX - (wave.velocity * mVelocity * 0.085f));
                    if (-wave.velocity > 0) {
                        wave.offsetX %= wave.width / 2;
                    } else {
                        while (wave.offsetX < 0) {
                            wave.offsetX += (wave.width / 2);
                        }
                    }

                    mMatrix.setTranslate(wave.offsetX, (1 - mProgress) * height);//wave.offsetX =
                    canvas.translate(-wave.offsetX, -wave.offsetY - (1 - mProgress) * height);
                } else{
                    mMatrix.setTranslate(wave.offsetX, (1 - mProgress) * height);
                    canvas.translate(-wave.offsetX, -wave.offsetY - (1 - mProgress) * height);
                }
                mPaint.getShader().setLocalMatrix(mMatrix);
                canvas.drawPath(wave.path, mPaint);
                canvas.restore();
            }

        }
        if (mIsRunning) {
            invalidate();
        }
    }

[scwang90]

1.哪些属性无效？ 2.局部变量对性能影响不大，真正消耗性能的大户在 setTranslate translate drawPath setLocalMatrix 中，动画时间的计算不能去掉，去掉之后，动画的速率就变成了帧数相关（不同性能的机子帧数不一样，会导致速度不一样），不是时间相关。