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package com.example.androidui2;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class MainActivity extends Activity
{
private GridView mainMenuGridView;
private int[] mainMenuImageRes = {R.drawable.circle,R.drawable.circle,R.drawable.circle,R.drawable.circle};
private String[] mainMenuStrs = {"拨号","所有联系人","使用说明","退出"};
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mainMenuGridView = (GridView)findViewById(R.id.gridview_main_menu);
initView();
}
// init views
private void initView()
{
// init main-menu
List<HashMap<String, Object>> datas = new ArrayList<HashMap<String,Object>>();
int length = mainMenuStrs.length;
for (int i = 0; i < length; i++)
{
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("ItemImageView", mainMenuImageRes[i]);
map.put("ItemTextView", mainMenuStrs[i]);
datas.add(map);
}
SimpleAdapter menuAdapter = new SimpleAdapter(
MainActivity.this,datas,
R.layout.main_menu_item,
new String[]{"ItemImageView","ItemTextView"},
new int[]{R.id.ItemImageView,R.id.ItemTextView} );
mainMenuGridView.setAdapter(menuAdapter);
mainMenuGridView.setOnItemClickListener(new MainMenuItemOnClick());
}
// Main Menu Item On Click Function
public class MainMenuItemOnClick implements OnItemClickListener
{
/** arg0 : The AdapterView where the click happened
* arg1 : The view within the AdapterView that was clicked
* arg2 : The position of the view in the adapter
* arg3 : The row id of the item that was clicked
**/
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3)
{
HashMap<String, Object> item = (HashMap<String, Object>)arg0.getItemAtPosition(arg2);
if (item.get("ItemTextView").equals(mainMenuStrs[0]))
{
Toast.makeText(getApplicationContext(), mainMenuStrs[0],
Toast.LENGTH_SHORT).show();
}
if (item.get("ItemTextView").equals(mainMenuStrs[1]))
{
Toast.makeText(getApplicationContext(), mainMenuStrs[1],
Toast.LENGTH_SHORT).show();
}
if (item.get("ItemTextView").equals(mainMenuStrs[2]))
{
Toast.makeText(getApplicationContext(), mainMenuStrs[2],
Toast.LENGTH_SHORT).show();
}
if (item.get("ItemTextView").equals(mainMenuStrs[3]))
{
Toast.makeText(getApplicationContext(), mainMenuStrs[3],
Toast.LENGTH_SHORT).show();
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
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