How to increase layout via touching up and down

Question

In my project we have 2 Linearlayout inside layout file, we want increase/decrease height via touch up and down

Inside a layout I have a horizontal view for changing height of layout. This view is the second layout

score 1 · Answer 1 · edited May 23 '17 at 12:17

1

First Detect amount of area scrolled by view using Android listView find the amount of pixels scrolled
Then set this scrolled height dynamically to the view Android set height and width of Custom view programmatically

edited May 23 '17 at 12:17

Community

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answered Feb 21 '17 at 11:30

Akshay Tilekar

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i think it's not useful for my solution, because i have a view in center of screen – sr_ farzad Feb 21 '17 at 11:32
i added PixelScrollDetector class and now how to use second link that you were wrote? – sr_ farzad Feb 21 '17 at 11:58
1

are you getting scrolled height? – Akshay Tilekar Feb 21 '17 at 12:02
@ Akshay Tilekar how to get scrolled height in view ? – sr_ farzad Feb 21 '17 at 12:55
@sr_farzad find view by id and set height to it as mentioned in above links – Akshay Tilekar Feb 21 '17 at 12:57
yes i could set height,and now can i change height via touch ? – sr_ farzad Feb 21 '17 at 13:02
change it according to onScrollStateChanged – Akshay Tilekar Feb 21 '17 at 13:10
can you write a sample using onScrollStateChanged in LinearLayout ? – sr_ farzad Feb 21 '17 at 13:31
but my problem is about touch for change position inside layout – sr_ farzad Feb 22 '17 at 06:42
what are you achieved ? have you got scrolled pixels? – Akshay Tilekar Feb 22 '17 at 06:59
@ Akshay Tilekar i could move layout inside screen and it soloved and new problem is when user drag it view going out of screen.how to limit it ? my width of view is Match_Parent Ask Question – sr_ farzad Feb 22 '17 at 07:47
Try the adjustViewBounds attribute: android:adjustViewBounds="true" – Akshay Tilekar Feb 22 '17 at 08:43
is adjustViewBounds using for ImageView or RelativeLayout? – sr_ farzad Feb 22 '17 at 08:59
read this :https://developer.android.com/reference/android/widget/LinearLayout.html – Akshay Tilekar Feb 22 '17 at 09:16

score 0 · Answer 2 · answered Feb 22 '17 at 09:22

I could resolve the problem.complete code is :

public class MultiTouchListener implements View.OnTouchListener {


    private float mPrevX;
    private float mPrevY;

    public QuranActivity mainActivity;
    public MultiTouchListener(QuranActivity mainActivity1) {
        mainActivity = mainActivity1;
    }

    @Override
    public boolean onTouch(View view, MotionEvent event) {
        float currX,currY;
        int action = event.getAction();
        switch (action ) {
            case MotionEvent.ACTION_DOWN: {

                mPrevX = event.getX();
                mPrevY = event.getY();
                break;
            }

            case MotionEvent.ACTION_MOVE:
            {

                int w = mainActivity.getWindowManager().getDefaultDisplay().getWidth() - 100;
                int h = mainActivity.getWindowManager().getDefaultDisplay().getHeight() - 100;



                currX = event.getRawX();
                currY = event.getRawY();


               ViewGroup.MarginLayoutParams marginParams = new ViewGroup.MarginLayoutParams(view.getLayoutParams());


                //marginParams.topMargin = (int)(currY - mPrevY);


            /*    if(currX>w){
                    marginParams.leftMargin = (int)(currX - mPrevX)-100;
                }
                else {
                    marginParams.leftMargin = (int)(currX - mPrevX);
                }


                if(currY>h){
                    marginParams.rightMargin = (int)(currY - mPrevY)-100;
                }
                else {
                    marginParams.rightMargin = (int)(currY - mPrevY);
                }
*/




                marginParams.setMargins(0, (int)(currY - mPrevY),0, 0);
                RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(marginParams);
                view.setLayoutParams(layoutParams);

                Log.e("onTouch X",currX - mPrevX+"  " + "" );
                Log.e("onTouch Y",currY - mPrevY+"  " + "" );



                break;
            }



            case MotionEvent.ACTION_CANCEL:
                break;

            case MotionEvent.ACTION_UP:

                break;
        }

        return true;
    }
}

How to increase layout via touching up and down

2 Answers2