how to use main xml file in layout-land folder ?

[sameera liyanage]

normally we put main xml file in res/layout folder.
I have a main file in res/layout-land folder.I need to use that file as main xml.so which code need to change ?
i have attached a screenshot also below.

[Peter Johnson]

You can name the files in res/layout anything that you like, for example: altscreen.xml Then in R.java you will get constant within the "layout" with the XML file's name, for example:

    public static final class layout {
        public static final int altscreen=0x7f030000;
    }

Then use that in your activity's onCreate method:

  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.altscreen);

[sameera liyanage]

i have alrady created a main xml in res/layout-land folder.but there is no any specific variable created for that in R java class.
below is R java class

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * aapt tool from the resource data it found.  It
 * should not be modified by hand.
 */

package org.example.sudoku;

public final class R {
    public static final class attr {
    }
    public static final class color {
        public static final int background=0x7f040000;
    }
    public static final class drawable {
        public static final int icon=0x7f020000;
    }
    public static final class id {
        public static final int about_button=0x7f060002;
        public static final int continue_button=0x7f060000;
        public static final int exit_button=0x7f060003;
        public static final int new_button=0x7f060001;
    }
    public static final class layout {
        public static final int main=0x7f030000;
    }
    public static final class string {
        public static final int about_label=0x7f050004;
        public static final int app_name=0x7f050000;
        public static final int continue_label=0x7f050002;
        public static final int exit_label=0x7f050005;
        public static final int main_title=0x7f050001;
        public static final int new_game_label=0x7f050003;
    }
}

below is my screenshot .look there is main xml file located in res/layout folder

[Peter Johnson]

You need to regenerate the R.java file. One way to do this is to rebuild the project.

[Mayu Mayooresan]

You are trying to refer the layout-land but your code refers R.layout.main

so the layout shown will be the main.xml file under layout folder.

btw avoid using - in folder file names, it'll create compilation error most of the time.