DrawerLayout must be measured with MeasureSpec.EXACTLY error

Question

I am trying to implement a Navigation drawer, but I keep getting this error. I saw the similar questions but did not work for me. I have the following layout activity_main2.

Answer 1

You could try to set Exactly measurements explicitly always like below:

public class MyDrawerLayout extends DrawerLayout {

    public MyDrawerLayout(@NonNull Context context) {
        super(context);
    }

    public MyDrawerLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public MyDrawerLayout(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        widthMeasureSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.EXACTLY);
        heightMeasureSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(heightMeasureSpec), MeasureSpec.EXACTLY);

        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}

Answer 2

Even I tried the Drawer's layout_height = "match_parent" but also java threw an error, so I just restarted android studio it worked no errors were found

Answer 3

This can also happen if you have set layout_width to wrap_content. In my case it was solved by setting width to match_parent. Hope this helps someone.

Answer 4

Make sure your activity is not a "Dialog" activity, check in the manifest. I made this mistake and got the error.

Answer 5

By mistake, I set a custom dialog theme to the activity instead of a custom activity theme:

activity.setTheme(R.style.StyledDialogTheme);

After i corrected this, it workes again.

Answer 6

For those who still have an exception, ensure your DrawerLayout's height is match_parent