页卷曲奇怪的闪电
我使用由Harism在https://github.com/harism/android_page_curl创建的页面卷曲动画。我已经将他的动画实现到了我的电子书阅读器应用程序中，问题是当我快速地滑动页面时，有时会很奇怪白色照明切换。 但是，当我正常卷曲页面时，并不存在这种情况。 我认为问题出在OpenGL方面。我不熟悉该技术，但在调试过程中，我看到在页面卷曲完成后，仍然有一些绘图过程在onDrawFrame方法上进行CurlRenderer类。
@Override
public synchronized void onDrawFrame(final GL10 gl) {
mObserver.onDrawFrame();
gl.glClearColor(Color.red(mBackgroundColor) / 255f,
Color.green(mBackgroundColor) / 255f,
Color.blue(mBackgroundColor) / 255f,
Color.alpha(mBackgroundColor) / 255f);
gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
gl.glLoadIdentity();
if (USE_PERSPECTIVE_PROJECTION) {
gl.glTranslatef(0, 0, -6f);
}
for (int i = 0; i < mCurlMeshes.size(); ++i) {
mCurlMeshes.get(i).onDrawFrame(gl);
}
Calendar now = Calendar.getInstance();
int minute = now.get(Calendar.MINUTE);
int second = now.get(Calendar.SECOND);
int millis = now.get(Calendar.MILLISECOND);
Log.i("time curl renderer (onDrawFrame) : ", minute + ":" + second + "." + millis);
}
以下是日志
02-20 07:27:37.320 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.326
02-20 07:27:37.328 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.336
02-20 07:27:37.335 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.344
02-20 07:27:37.343 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.354
02-20 07:27:37.359 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.367
02-20 07:27:37.367 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.377
02-20 07:27:37.375 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.387
02-20 07:27:37.390 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.399
02-20 07:27:37.398 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.410
02-20 07:27:37.414 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.422
02-20 07:27:37.421 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.432
02-20 07:27:37.437 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.444
02-20 07:27:37.445 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.455
02-20 07:27:37.453 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.465
02-20 07:27:37.468 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.477
02-20 07:27:37.476 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.487
02-20 07:27:37.492 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.501
02-20 07:27:37.500 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.509
02-20 07:27:37.515 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.520
02-20 07:27:37.523 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.532
02-20 07:27:37.531 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.542
02-20 07:27:37.546 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.555
02-20 07:27:37.554 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.565
02-20 07:27:37.570 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.576
02-20 07:27:37.578 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.588
02-20 07:27:37.585 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.598
02-20 07:27:37.601 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.610
02-20 07:27:37.609 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.619
02-20 07:27:37.617 30215-30407/org.com.ebook I/time curl renderer (onDrawFrame) :﹕ 27:37.629
当第一行日志出现时，本书的页面完成卷曲让我们说02-20 07：27：37.320在这种情况下，但在接下来的行中，您可以看到onDrawFrame方法被称为连续的。也许我在此方法不卷曲时卷曲页面完成它的工作，并从该故障来的减轻开关？ 任何帮助？这里是视频的链接，你可以在那里看到有时会出现闪电http://www.youtube.com/watch?v=HPJ2U18Caok&feature=youtu.be
其他可能的解决方
尝试使用渲染脚本页面卷曲！
（Renderscript是一种语言，API和运行时库，可用于实现Android应用程序的高性能渲染和计算。请参阅Jason Sams的介绍性文章，介绍Renderscript和Renderscript第2部分。）
还可以看看这个带有Page Turner的Awesome页面卷曲库！
更多来源：
http://www.zeropointnine.com/blog/3d-page-curl-effect-updated/
http://www.doubleencore.com/2013/10/renderscript-for-all/
链接地址: http://www.djcxy.com/p/87147.html