android - file.exists() returns false for existing file (for anything different than pdf)

Question

Both files are present on the sdcard, but for whatever reason exists() returns false the the png file.

//String path = \"/mnt/sdcard/Android/data/com.gemoro.         


        

Answer 1

1 You need get the permission of device

Add this to AndroidManifest.xml

2 Get the external storage directory

File sdDir = Environment.getExternalStorageDirectory();

3 At last, check the file

File file = new File(sdDir + filename /* what you want to load in SD card */);
if (!file.canRead()) {
    return false;
}
return true;

Note: filename is the path in the sdcard, not in root.

For example: you want find

/mnt/sdcard/Android/data/com.gemoro.toffer/cache/1551619351/0/foto/-921042926.png

then filename is

./Android/data/com.gemoro.toffer/cache/1551619351/0/foto/-921042926.png

.