Android™ How to Program, Second Edition

DoodleView Method saveImage

Method saveImage (Fig. 7.32) saves the current drawing to a file in the device’s gallery. Line 271 creates a filename for the image, then lines 274–276 store the image in the device’s Gallery by calling class MediaStore.Images.Media’s insertImage method. The method receives four arguments:

• a ContentResolver that the method uses to locate where the image should be stored on the device

• the Bitmap to store

• the name of the image

• a description of the image

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267     // save the current image to the Gallery268     public void saveImage()269     {270        // use "Doodlz" followed by current time as the image name271        String name = "Doodlz" + System.currentTimeMillis() + ".jpg" ...