Android Question getDefaultSize

MarcoRome · May 30, 2016

I should translate this into B4A. I stopped on "getDefaultSize (mVideoWidth, widthMeasureSpec);"
The code is:

B4X:

2     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
4         int width = getDefaultSize(mVideoWidth, widthMeasureSpec);
5         int height = getDefaultSize(mVideoHeight, heightMeasureSpec);
6         if (mVideoWidth > 0 && mVideoHeight > 0) {
7             if ( mVideoWidth * height  > width * mVideoHeight ) {
8                 //Log.i("@@@", "image too tall, correcting");
9                 height = width * mVideoHeight / mVideoWidth;
10             } else if ( mVideoWidth * height  < width * mVideoHeight ) {
11                //Log.i("@@@", "image too wide, correcting");
12                 width = height * mVideoWidth / mVideoHeight;
13             } else {
14                 //Log.i("@@@", "aspect ratio is correct: " +
15                         //width+"/"+height+"="+
16                         //mVideoWidth+"/"+mVideoHeight);
17             }
18         }
19         //Log.i("@@@@@@@@@@", "setting size: " + width + 'x' + height);
20         setMeasuredDimension(width, height);
21     }

Any idea ?
Thank you

MarcoRome · May 30, 2016

We have in B4A this utility o equivalent ?

getDefaultSize
Added in API level 1
int getDefaultSize (int size,
int measureSpec)
Utility to return a default size. Uses the supplied size if the MeasureSpec imposed no constraints. Will get larger if allowed by the MeasureSpec.
Parameters
sizeint: Default size for this view
measureSpecint: Constraints imposed by the parent
Returns
intThe size this view should be.

Thank you
Marco

MarcoRome · May 30, 2016

I tried this code:

B4X:

  Dim bo As JavaObject
  bo.InitializeStatic("android.widget.VideoView")
  Dim vedi As Int = bo.RunMethod("getDefaultSize", Array As Object(480, 1280 ))
Log("getDefaultSize: " & vedi )

Return ever first number that i put: "480"
if i write:

B4X:

....
Dim vedi As Int = bo.RunMethod("getDefaultSize", Array As Object(600, 1280 ))
....

Return 600

Where i wrong ?

Erel · May 30, 2016

This code needs to go to a class that inherits from anrdoid.view.View.

MarcoRome · May 30, 2016

Thank Erel. Do you have any solution ?

MarcoRome · May 30, 2016

Erel sorry for the question.. but if i write 480, 1280 why i need android.view.view if i already insert value

B4X:

 Dim vedi As Int = bo.RunMethod("getDefaultSize", Array As Object(480, 1280 ))

MarcoRome · May 30, 2016

This is source the getDefaultSize:

B4X:

public static int getDefaultSize(int size, int measureSpec) {
        int result = size;
        int specMode = MeasureSpec.getMode(measureSpec);
        int specSize = MeasureSpec.getSize(measureSpec);

        switch (specMode) {
        case MeasureSpec.UNSPECIFIED:
            result = size;
            break;
        case MeasureSpec.AT_MOST:
        case MeasureSpec.EXACTLY:
            result = specSize;
            break;
        }
        return result;
    }

Now if i already write value "size" and "measureSpec" ( 480, 1280 ) why the result is ever result = size.

Erel · May 31, 2016

This code by itself doesn't do anything. You haven't posted any information about the source of this code, however we can guess that you are expected to create a subclass of VideoView or a similar view.

MarcoRome · May 31, 2016

Yes Erel you are right.
This code is to zoom in (also using the Ratio to prevent the Video is not proportionate, type too elongated, pressed, etc).
So I found this code over the network and wanted to exchange this for B4A so that could work.
To explain in my case I have the video from 480 (width) and 280 (height).
If I want to fill the device screen with the movie (especially in portrait mode) I get a very elongated image and obviously not proportional.
In any case, I settled with the following code that I share in the event that will be useful to a colleague:

B4X:

.....
Dim width As Int = Activity.Width
Dim height As Int = Activity.Height
If height > width Then
         width = ((Activity.Height * 480 ) / 270 )
    Else
        height = (( Activity.Width * 270 ) / 450 )
End If

w = width
h = height
.....

Android Question getDefaultSize

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