I've never used GridView, but that sounds fishy using a LinearLayout for
each cell.
Why not just use wrap_content, wrap_content for the ImageViews and scale
all bitmaps using this:
public static Bitmap *createScaledBitmap* (Bitmap src, int dstWidth, int
dstHeight, boolean filter)
Added in API level 1
Creates a new bitmap, scaled from an existing bitmap, when possible. If the
specified width and height are the same as the current width and height of
the source btimap, the source bitmap is returned and now new bitmap is
created.
Parameters
src
The source bitmap.
dstWidth
The new bitmap's desired width.
dstHeight
The new bitmap's desired height.
filter
true if the source should be filtered.
Returns
The new scaled bitmap or the source bitmap if no scaling is required.
On Monday, March 18, 2013 3:55:37 PM UTC-5, user123 wrote:
>
> They are in a linear layout, each cell has a (linear) layout... This also
> would cause a class cast exception.
>
>
> Am Montag, 18. März 2013 20:15:17 UTC+1 schrieb bob:
>>
>> I think this only works if your images are in a LinearLayout.:
>>
>> *LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(width,
>> newH);*
>>
>> Maybe change LinearLayout to *GridView*?
>>
>>
>>
>>
>> On Monday, March 18, 2013 12:51:58 PM UTC-5, user123 wrote:
>>>
>>> Yes, sorry, it was in the original code, and I removed it before pasting
>>> here (thought it could be unnecessary)
>>>
>>> the line is
>>>
>>> double factor = loadedBitmap.getWidth() / (loadedBitmap.getHeight() *
>>> 1d);
>>>
>>> Am Montag, 18. März 2013 18:08:56 UTC+1 schrieb bob:
>>>>
>>>> Shouldn't you convert the getWidth() and getHeight() to *double*s
>>>> before your division?
>>>>
>>>> Thanks.
>>>>
>>>>
>>>>
>>>> On Monday, March 18, 2013 9:41:26 AM UTC-5, user123 wrote:
>>>>>
>>>>> I 4 - colums grid where the items are an image on top and bellow a
>>>>> textview. The image fills all the available width - no padding or
>>>>> anything.
>>>>>
>>>>> My images will all have exactly the same size.
>>>>>
>>>>> Now I want that the height of the view adjusts to the width - to keep
>>>>> the images proportional. AFAIK this is not possible with Android's
>>>>> scaling
>>>>> types. So I put this code after I load the bitmap (it's feched from the
>>>>> web):
>>>>>
>>>>> imageView.post(new Runnable() {
>>>>> @Override
>>>>> public void run() {
>>>>> double factor = loadedBitmap.getWidth() /
>>>>> (loadedBitmap.getHeight());
>>>>>
>>>>> int width = imageView.getWidth();
>>>>>
>>>>> int newH = (int)(width * factor);
>>>>> LinearLayout.LayoutParams params = new
>>>>> LinearLayout.LayoutParams(width, newH);
>>>>> imageView.setLayoutParams(params);
>>>>> //convertViewFinal.invalidate(); //doesn't help
>>>>> //convertViewFinal.requestLayout(); //doesn't
>>>>> help
>>>>> }
>>>>> });
>>>>>
>>>>> It works for most of the images, but on some, it doesn't show any
>>>>> image (the imageview looks like GONE), and in some cases this also breaks
>>>>> the grid layout. Why is it? I know that the bitmaps are fine, because, in
>>>>> my testing application, I loop through the same bitmaps many times - they
>>>>> appear after x items in the grid again, and they are fine. And each time
>>>>> I
>>>>> load the grid, different items have the problem.
>>>>>
>>>>
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