Question

我正在创建一个Android应用程序，其中我有一个用户浏览按钮browse an image from the image gallery。我正在获取所选图像但我在活动中需要name of the image to be displayed in a textview我该怎么做？我以这种方式获得图像：

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PICTURE) {
            Uri selectedImageUri = data.getData();
            selectedImagePath = getPath(selectedImageUri);
            System.out.println("Image Path : " + selectedImagePath);
            img.setImageURI(selectedImageUri);

            upload_row=new TableRow(this);

            appln_no=new TextView(this);
            image_name=new TextView(this);
            doctype=new TextView(this);

            appln_no.setText("Application no.");
            image_name.setText(selectedImagePath);
            doctype.setText("DOCUMENT_TYPE");

            upload_row.addView(appln_no);
            upload_row.addView(image_name);
            upload_row.addView(doctype);

            upload_table.addView(upload_row);

        }
    }
}

有人可以告诉我如何在字符串中显示图像名称以显示它????

提前致谢!!

Answer 1

要获得真实路径，请使用以下功能

public String getRealPathFromURI(Uri contentUri) {
// can post image
String [] proj={MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery( contentUri,
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null); // Order-by clause (ascending by name)
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index); 

   }

获得真正的路径

     Uri selectedImageUri = data.getData();
     String s= getRealPathFromURI(selectedImageUri);

使用以下子字符串

     String name = s.substring(s.lastIndexOf("/") + 1)
     // instead of "/" you can also use File.sepearator
     System.out.println("......"+ name);
     image_name=new TextView(ActivityName.this);
     image_name.setText(name);

示例：

    String str="/storage/sdcard0/MyFolder/After school children sports day.jpg";
    System.out.println("......"+ str.substring(str.lastIndexOf("/") + 1));

输出

    ......After school children sports day.jpg

Answer 2

尝试data.getData().getLastPathSegment()这应该会为您提供图片名称

如何让图像名称显示在textview中？

2 个答案: