SAving pictures which needed by my application

My app needs to download picture from internet time to time and store them to show when it runs according to the selection. how can i download the pictures and what is the way to store them in my application folder or etc. i m trying to use file output stream on application local folde开发者_JS百科rs such as assets and drawable but so far no luck in finding the correct path for it.

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To download the images I suggest you use the Apache HttpClient libraries, which are built into the Android SDK. Here's a tutorial that can get you started quickly with HttpClient: http://hc.apache.org/httpcomponents-client-4.0.1/tutorial/html/fundamentals.html

To store the images, the following code will get you your app's data directory. The data directory is located on the device filesystem at /data/data/your.package.name/files/.

Context ctx = activity.getApplicationContext();
String dataDir = ctx.getApplicationInfo().dataDir;

If you're interested in storing the images permanently in your user's Gallery, there are APIs for doing that in the MediaStore class.