Load Layout from xml layout file : Layout « UI « Android

1. Android
2. UI
3. Layout

Load Layout from xml layout file

    

package app.Test;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class appTest extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
  }

  public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.mainmenu, menu);
    return true;
  }

  public boolean onOptionsItemSelected(MenuItem item) {
    LinearLayout bkgr = (LinearLayout) findViewById(R.id.uilayout);
    final ImageView image = (ImageView) findViewById(R.id.ImageView01);

    AlertDialog.Builder builder = new AlertDialog.Builder(this);

    builder.setTitle("Pick an Image!")
        .setMessage("Please Select Image One or Image Two:")
        .setCancelable(false)
        .setPositiveButton("IMAGE 1",
            new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int id) {
                image.setImageResource(R.drawable.image1);
              }
            })

        .setNegativeButton("IMAGE 2",
            new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int id) {
                image.setImageResource(R.drawable.image2);
              }
            });

    switch (item.getItemId()) {
    case R.id.buttonone:
      image.setImageResource(R.drawable.image1);
      return true;
    case R.id.buttontwo:
      image.setImageResource(R.drawable.image2);
      return true;
    case R.id.buttonthree:
      bkgr.setBackgroundResource(R.color.background2);
      return true;
    case R.id.buttonfour:
      bkgr.setBackgroundResource(R.color.background);
      return true;
    case R.id.buttonfive:
      builder.show();
      return true;
    default:
      return super.onOptionsItemSelected(item);
    }
  }
}

//main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/uilayout"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/background">
    
  <ImageButton android:id="@+id/button_one"
          android:layout_width="wrap_content"
         android:layout_height="wrap_content"
          android:src="@drawable/button1"
          android:paddingTop="5px"
          android:background="#00000000">
  </ImageButton>
  
  <TextView  android:id="@+id/TextView01" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:text="Sample Text" 
        android:textColor="#CCCC77" 
        android:padding="12dip">
  </TextView>
  
  <ImageView  android:id="@+id/ImageView01" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:src="@drawable/image1">
  </ImageView>
  
</LinearLayout>


//mainmenu.xml
<?xml version="1.0" encoding="utf-8"?>

<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:id="@+id/buttonone"
          android:icon="@drawable/image1icon"
          android:title="@string/showimage1" />
          
    <item android:id="@+id/buttontwo"
          android:icon="@drawable/image2icon"
          android:title="@string/showimage2" />
          
    <item android:id="@+id/buttonthree"
          android:icon="@drawable/menu3icon"
          android:title="@string/showwhite" />
          
    <item android:id="@+id/buttonfour"
          android:icon="@drawable/menu4icon"
          android:title="@string/showblack" />
          
    <item android:id="@+id/buttonfive"
          android:icon="@drawable/menu5icon"
          android:title="@string/showalert" />
          
</menu>

   
    
    
    
  

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