我通过TextureView启动getBitmap的线程,但是,我得到一个例外:
E/AndroidRuntime: FATAL EXCEPTION: Thread-814
java.lang.IllegalStateException: Hardware acceleration can only be used with a single UI thread.
Original thread: Thread[main,5,main]
Current thread: Thread[Thread-814,5,main]
at android.view.HardwareRenderer$GlRenderer.checkCurrent(HardwareRenderer.java:1343)
at android.view.HardwareRenderer$GlRenderer.validate(HardwareRenderer.java:1080)
at android.view.TextureView.getBitmap(TextureView.java:587)
at com.example.zmc.colorfultextproject.demo2.SecondActivity.getFrame(SecondActivity.java:153)
at com.meitu.colorfultext.ColorfulTextView$1.run(ColorfulTextView.java:131)
at java.lang.Thread.run(Thread.java:856)
在我的代码中
private TextureView demo2VideoTtv;
public Bitmap getFrame() {
//这里会造成抖动
long start = System.currentTimeMillis();
demo2VideoTtv.getBitmap(mFrame); // here throw exception
Log.d("SecondActivity", "getFrame time" + (System.currentTimeMillis() - start));
//裁剪图片
mFrame_part = Bitmap.createBitmap(mFrame, demo2ColorfulText.getLeft(), demo2ColorfulText.getTop(), demo2ColorfulText.getWidth(), demo2ColorfulText.getHeight());
return mFrame_part;
}
答案 0 :(得分:0)
我不确定确切的api阈值,但在旧设备上必须在UI线程上请求TextureView.getBitmap()。
它似乎不是21岁以上的问题。最后我看到它在api 19上可以重现。