Camera.set previewDisplay（）抛出异常 [英] Camera.setPreviewDisplay() throws Exception

问题描述

可能重复：
  <一href="http://stackoverflow.com/questions/7942378/android-camera-will-not-work-start$p$pview-fails">Android相机将无法正常工作。 p $ PVIEW失败启动$

Possible Duplicate:
Android Camera will not work. startPreview fails

我想设置一个摄像头preVIEW在自定义的SurfaceView但每次我执行初始化方法时，我得到一个例外。

I am trying to set a camera preview in a custom SurfaceView but I get an exception each time I execute the initialization method.

下面是code相机preVIEW初始化：

Below is the code for camera preview initialization:

private void init(Context context)
{
    setFocusable(true);
    mRecording = false;
    fileRW = new FileReaderWriter();
    frameCount = 0;
    if(mCamera == null)
    {
        mCamera = Camera.open();
    }
    Parameters parameters = mCamera.getParameters();
    parameters.setPictureFormat(PixelFormat.JPEG);
    mCamera.setParameters(parameters);
    try {
        mCamera.setPreviewDisplay(surfaceHolder);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    mCamera.startPreview();

}

行 mCamera.set previewDisplay（surfaceHolder）; 抛出异常（设置previewDisplay失败）每次我试图执行的方法。

the line mCamera.setPreviewDisplay(surfaceHolder); throws an exception (setPreviewDisplay failed) each time I try to execute the method.

有谁知道什么可能是错误的？我真的AP preciate您的帮助。

Does anyone know what could be wrong? I would really appreciate any of your help.

谢谢！`

推荐答案

我完全乔恩明亮同意

我无法弄清楚发生了什么事情了一个星期，我忽略了的setType的表面支架，因为SDK说，这是pcated德$ P $，即

I couldn't figure out what was going on for a week, I ignored the setType on the surface holder because the SDK said it was deprecated, ie.

此方法pcated德$ P $。此被忽略，该值在需要时自动设定。

"This method is deprecated. this is ignored, this value is set automatically when needed."

但是，如果你不这样做，它会崩溃的一套preVIEW。这是在Galaxy S的运行1.5 SDK（我需要它是向后兼容的）2.1。因此，请确保您设置的类型。不太自动为文档，使得它听起来。

But if you don't do that, it will crash on setPreview. This is running 1.5 SDK (I need it to be backwards compatible to that) on a Galaxy S with 2.1. So make sure you set the type. Not quite as automatic as the documentation makes it sound.

这篇关于Camera.set previewDisplay（）抛出异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！