android相机图片未显示

时间:2014-09-07 07:56:12

标签: android bitmap camera

以下是我的相机代码

 public void takepic(View view) {
    Spinner spinner1 = (Spinner)findViewById(R.id.spinner1);
    String schname = spinner1.getSelectedItem().toString();
    String[] tokens = schname.split(" ");
    String timeStamp = new SimpleDateFormat("dd-MM-yyyy-HH-mm-ss").format(new Date());
    String imageFileName = tokens[0] + "-" + timeStamp + ".jpg";
    TextView detail = (TextView)findViewById(R.id.textView1);
    detail.setText(imageFileName); 
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);    
    File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
    String name = imageFileName;
    File file = new File(path, name );
    ImageView mImage = (ImageView) findViewById(R.id.mImageView);
    outputFileUri = Uri.fromFile(file);
    intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
    startActivityForResult(intent, TAKE_PICTURE); 
    new SingleMediaScanner(this, file);
    }

protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
     if (requestCode == TAKE_PICTURE) {
         Bitmap thumbnail = (Bitmap) data.getExtras().get("data");  
         mImage.setImageBitmap(thumbnail);            
     }}}

当调用它运行时,相机应用程序拍摄照片并将其存储在带有预定义文件名的Pictures文件夹中

问题是它应该在imageview调用mImageView中显示图像,但它不是

mImageView已经有了一个位图。它应该更改为新图像,而是保持原样

ouputFileURI报告正确的路径和文件名,但我无法使其工作

有什么想法吗?

标记

1 个答案:

答案 0 :(得分:0)

由于您明确指定文件名存储图像的位置,因此您应该从该文件中读取Bitmap而不是从Intent加载它。听起来data.getExtras().get("data");正在返回null

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