android-sdcard

This is driving me insane! Here's my code (I know this file exists): File imageFile = new File("/sdcard/gallery_photo_4.jpg"); ImageView jpgView = (ImageView)findViewById(R.id.imageView); BitmapDrawable d = new BitmapDrawable(getResources(), imageFile.getAbsolutePath()); jpgView.setImageDrawable(d); The error occurs on that last line (line 28, referenced below). Error output: W/dalvikvm( 865): threadid=1: thread exiting with uncaught exception (group=0x4001d800) E/AndroidRuntime( 865): FATAL EXCEPTION: main E/AndroidRuntime( 865): java.lang.RuntimeException: Unable to start activity

I'm attempting to create a gridview that is loaded with images from a specific folder that resides on an SDCard. The path to the folder is known, ("/sdcard/pictures") , but in the examples I've seen online I am unsure how or where to specify the path to the pictures folder I want to load images from. I have read through dozens of tutorials, even the HelloGridView tutorial at developer.android.com but those tutorials do not teach me what i am seeking. Every tutorial I have read so far has either: A) called the images as a Drawable from the /res folder and put them into an array to be loaded,

I want to open external storage directory path for saving file programatically.I tried but not getting sdcard path. How can i do this?is there any solution for this?? private File path = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + ""); or private File path = new File(Environment.getExternalStorageDirectory() + ""); I tried getting path from above both methods but both are pointing internal memory. When we open storage memory if sdcard is peresent it will shows like below- device storage & sd memory card. I want to get sd memory path through coding.

I'm working on an Android application that needs to look at what images a user has stored. The problem is that if the user has the sdcard mounted via the USB cable, I can't read the list of images on the disk. Does anyone know of a way to tell if the usb is mounted so that I could just pop up a message informing the user that it won't work? If you're trying to access images on the device, the best method is to use the MediaStore content provider . Accessing it as a content provider will allow you to query the images that are present, and map content:// URLs to filepaths on the device where

In my application, I need to store lots of images in the device storage. Such files tend to fulfill the device storage, and I want to allow users to be able to choose external SD card as the destination folder. I read everywhere that Android doesn't allow users to write to external SD card, by SD card I mean the external and mountable SD card and not the external storage , but file manager applications manage to write to External SD on all Android versions. What is the better way to grant read/write access to external SD card on different API levels (Pre-KitKat, KitKat, Lollipop+)? Update 1 I

how to read a specific file from sdcard. i have pushed the file in sdcard through DDMS and i am trying to read it though this way but this give me exception. can anybody tell me how to point exactly on that file? my code is this. String path = Environment.getExternalStorageDirectory().getAbsolutePath(); FileInputStream iStream = new FileInputStream(path); You are trying to read a directory... what you need is the file! Do something like this... then, you can read the file as you want. File dir = Environment.getExternalStorageDirectory(); File yourFile = new File(dir, "path/to/the/file/inside