CODEWITHSUNDEEP
androidbitmapnullpointerexception
Andrea Giancarli
Andrea Giancarli

Reputation: 119

Android BitmapRegionDecoder decodeRegion NullPointerException on 10" tablet

In my Android app I'm using the following code:

BitmapRegionDecoder decoder;
...
decoder = BitmapRegionDecoder.newInstance(myStream, false);
...
int width = -1, height = -1, left = -1, top = -1;
...
Log.d("GDA", left + " " + top + " " + width + " " + height);
Rect re = new Rect(left, top, width, height);
Log.d("GDA", re.toString());
if(decoder != null)
    region = decoder.decodeRegion(re, null);

everything work well on smartphones and 7" tablets but in 10" tablets (I tested it on a Samsung GT10.1 and an Acer A501) I got this error:

1152 1728 2304 2592
Rect(1152, 1728 - 2304, 2592)
java.lang.NullPointerException
    at android.graphics.BitmapRegionDecoder.decodeRegion(BitmapRegionDecoder.java:399)

I can't find a solution. Has anyone had the same issue? Any suggestions?

Upvotes: 2

Views: 2419

Answers (1)

user2534722
user2534722

Reputation: 86

Solution:

Don't use "region = decoder.decodeRegion(re, null);", use for example:

BitmapFactory.Options options = new BitmapFactory.Options();
region = decoder.decodeRegion(re, options);

It's work, checked for Galaxy Tab 10.1 Android 4.0.x

Upvotes: 6

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