当我从画廊读取图像时，一切正常。但是当我从文件管理器( Intent { dat=file:///storage/emulated/0/Download/HD-Wallpapers1.jpeg } )读取图像时，我收到了错误。
Intent intent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Picture"), 1);
--- onactivity结果方法---
Uri selectedImageUri = data.getData();
imagepath = getPath(selectedImageUri);
Bitmap bitmap=BitmapFactory.decodeFile(imagepath);
imageview.setImageBitmap(bitmap);
错误日志 08-14 10：29：44.376：E / AndroidRuntime（2063）：java.lang.RuntimeException：传递结果失败ResultInfo {who = null，request = 1，result = -1，data = Intent {
DAT =文件：///storage/emulated/0/Download/dHkGLr7F6v25DRUu7Vaq3GvXUW2c0gbxzs05WmmQ8GwMQAN5U8wb-LUJnTCt6IIYjww6gqJ9GT-ID_bxyjtRDdMav8DTnGhpxBV6KxKAEyjYBMsLvzkcv8M0OMfGwbn6yRnCAxdJZeFqi5BbbGzlTiTU_ukeAt0RbERJHdyAie-Dm7IuRg=w350-h350-nc.png}}
to activity {com.example.uploadtest / com.example.uploadtest.MainActivity}：java.lang.NullPointerException