android - 我正在尝试在图像列表视图中动态显示图像预览，但每次都得到空位图

Question

我正在尝试在图像列表视图中动态显示图像预览，但每次都得到空位图。

File f1 = new File("/mnt/sdcard/DCIP/myImage.jpg");
Bitmap bitMap = BitmapFactory.decodeFile(f1.getAbsolutePath());
 /* here bitMap becomes null */
imageView.setImageBitmap(bitMap); 

Answer 1

Don't use fixed SDCard url, its not same in every Android devices.

For e.g.

/mnt/sdcard/
/sdcard

Instead use getExternalStorageDirectory().

For example:

String baseDir = Environment.getExternalStorageDirectory().getAbsolutePath();