Layout Animation : Layout « UI « Android

1. Android
2. UI
3. Layout

Layout Animation

    
package app.test;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.TextView;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

 class LayoutAnimationActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.list_layout);
        setupListView();
    }
    private void setupListView()
    {
        String[] listItems = new String[] {
              "Item 1", "Item 2", "Item 3",
              "Item 4", "Item 5", "Item 6",
        };
        
        ArrayAdapter<String> listItemAdapter = 
           new ArrayAdapter<String>(this
                   ,android.R.layout.simple_list_item_1
                   ,listItems);
        ListView lv = (ListView)this.findViewById(R.id.list_view_id);
        lv.setAdapter(listItemAdapter);
    }
}


public class Test extends Activity 
{
  Menu myMenu = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) 
    {
      super.onCreateOptionsMenu(menu);
      this.myMenu = menu;
      MenuInflater mi = this.getMenuInflater();
      mi.inflate(R.menu.main_menu,menu);
      return true;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) 
    {
      try
      {
        handleMenus(item);
      }
      catch(Throwable t)
      {
        throw new RuntimeException("error",t);
      }
      return true;
    }
    private void handleMenus(MenuItem item)
    {
    this.appendMenuItemText(item);
    if (item.getItemId() == R.id.menu_clear)
    {
      this.emptyText();
    }
    else if (item.getItemId() == R.id.menu_list_animation)
    {
      Intent intent = new Intent(this, LayoutAnimationActivity.class);
      startActivity(intent);
    }
    }
    
    private TextView getTextView()
    {
         TextView tv = 
           (TextView)this.findViewById(R.id.textViewId);
         return tv;
    }
    public void appendText(String text)
    {
         TextView tv = 
           (TextView)this.findViewById(R.id.textViewId);
         tv.setText(tv.getText() + text);
    }
    public void appendMenuItemText(MenuItem menuItem)
    {
      String title = menuItem.getTitle().toString();
         TextView tv = 
           (TextView)this.findViewById(R.id.textViewId);
         tv.setText(tv.getText() + "\n" + title + ":" + menuItem.getItemId());
    }
    private void emptyText()
    {
         TextView tv = 
           (TextView)this.findViewById(R.id.textViewId);
         tv.setText("");
    }
    
}
//main.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

<TextView android:id="@+id/textViewId"  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="Click on Menu to start the animation activity"
    />
    
</LinearLayout>

//list_layout.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <ListView
        android:id="@+id/list_view_id"
        android:persistentDrawingCache="animation|scrolling"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layoutAnimation="@anim/list_layout_controller" />
        />
</LinearLayout>
//main_menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- This group uses the default category. -->
    <group android:id="@+id/menuGroup_Main">
    
        <item android:id="@+id/menu_list_animation"
            android:orderInCategory="1"
            android:title="Animate List" />
            
        <item android:id="@+id/menu_clear"
            android:orderInCategory="10"
            android:title="clear" />
    </group>
</menu>

   
    
    
    
  

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