Btukfyl

So I have this app that's set to display on portrait mode. When I run it on android, it goes "portrait" but only in the center of the screen. It doesn't do what you'll except. For example on tablets where it goes portrait mode and fills the entire screen.

I tried every well-known root access app but they can't give me root access to be able to edit build.prop. KingRoot even said that my device is too strong.

So, what I planned now is do it via code. My app is quite simple so it won't give me a lot of problems on the design side of things. It just contains a webview and nothing else.

I want it to work even on non-Android TV boxes because we use various kinds on android boxes and it'll be a problem for me if it will only work on real Android TV boxes.

After some experimenting, I made this code.

if(forcePotrait){

    webview.setRotation(-90f);



    int measuredWidth = 0;

    int measuredHeight = 0;

    Point size = new Point();

    WindowManager w = getWindowManager();



    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)    {

        w.getDefaultDisplay().getSize(size);

        measuredWidth = size.x;

        measuredHeight = size.y;

    }else{

        Display d = w.getDefaultDisplay();

        measuredWidth = d.getWidth();

        measuredHeight = d.getHeight();

    }



    int scrData = getScreenDimension();



    ConstraintLayout.LayoutParams lytParams = new ConstraintLayout.LayoutParams(scrData[1], scrData[0]);



    lytMain.removeAllViews();

    lytMain.addView(webview, 0, lytParams);



}

getScreenDimension is a method that get the screen size of the device.

It rotates the WebView but it occupies just a portion of the screen and displays just a portion of the page as well. I'm using ConstraintLayout as my base layout. I also turned on the Show Layout Bounds on Developer Options and it seems like the WebView is not drawn properly because the red line is a few dps of the center which isn't anywhere near the WebViews display.

I found this and used it on my project: https://stackoverflow.com/a/26711189/10464730. This is the code in the link.

public class VWebView extends WebView {

    final boolean topDown = true;



    public VWebView(Context context, AttributeSet attrs) {

        super(context, attrs);

    }



    @Override

    public void draw(Canvas canvas) {

        if (topDown) {

            canvas.translate(getHeight(), 0);

            canvas.rotate(90);

        } else {

            canvas.translate(0, getWidth());

            canvas.rotate(-90);

        }

        canvas.clipRect(0, 0, getWidth(), getHeight(), android.graphics.Region.Op.REPLACE);

        super.draw(canvas);

    }

}

Now, I don't need to rotate the WebView manually. But the WebView still doesn't fill the entire screen.

With the code below which uses values that are close to what I get on screen size methods, I get the screenshot result.

ConstraintLayout.LayoutParams lytParams = new ConstraintLayout.LayoutParams(1300, 1280);

webview.setLayoutParams(lytParams);