Mega Code Archive
Layout Animation
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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>
]]>