EX04_18.java
上传用户:vip_99
上传日期:2021-03-27
资源大小:61159k
文件大小:4k
- package irdc.ex04_18;
- import android.app.Activity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.AdapterView;
- import android.widget.ArrayAdapter;
- import android.widget.Button;
- import android.widget.GridView;
- import android.widget.TextView;
- public class EX04_18 extends Activity
- {
- private TextView mTextView01;
- private Button mButton01,mButton02;
- private GridView mGridView01;
- private String[] mGames1,mGames2;
- private ArrayAdapter<String> aryAdapter1;
-
- /** Called when the activity is first created. */
- @Override
- public void onCreate(Bundle savedInstanceState)
- {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
-
- /* 4个字符串数组 */
- mGames1 = new String[]
- {
- getResources().getString(R.string.str_list1),
- getResources().getString(R.string.str_list2),
- getResources().getString(R.string.str_list3),
- getResources().getString(R.string.str_list4)
- };
-
- /* 9个字符串数组 */
- mGames2 = new String[]
- {
- getResources().getString(R.string.str_list1),
- getResources().getString(R.string.str_list2),
- getResources().getString(R.string.str_list3),
- getResources().getString(R.string.str_list4),
- getResources().getString(R.string.str_list1),
- getResources().getString(R.string.str_list2),
- getResources().getString(R.string.str_list3),
- getResources().getString(R.string.str_list4),
- getResources().getString(R.string.str_list1)
- };
-
- mButton01 = (Button)findViewById(R.id.myButton1);
- mButton02 = (Button)findViewById(R.id.myButton2);
- mGridView01 = (GridView)findViewById(R.id.myGridView1);
-
- mTextView01 = (TextView)findViewById(R.id.myTextView1);
-
- mButton01.setOnClickListener(new Button.OnClickListener()
- {
- @Override
- public void onClick(View v)
- {
- // TODO Auto-generated method stub
-
- /* 4个元素,以2列方式呈现(2x2) */
- mGridView01.setNumColumns(2);
-
- aryAdapter1 = new ArrayAdapter<String>
- (EX04_18.this, R.layout.simple_list_item_1_small, mGames1);
-
- mGridView01.setAdapter(aryAdapter1);
- //mGridView01.setScrollBarStyle(DEFAULT_KEYS_DIALER);
- mGridView01.setSelection(2);
- mGridView01.refreshDrawableState();
- }
- });
-
- mButton02.setOnClickListener(new Button.OnClickListener()
- {
- @Override
- public void onClick(View v)
- {
- // TODO Auto-generated method stub
-
- /* 9个元素,以3列方式呈现(3x3) */
- mGridView01.setNumColumns(3);
-
- aryAdapter1 = new ArrayAdapter<String>
- (EX04_18.this, R.layout.simple_list_item_1_small, mGames2);
-
- mGridView01.setAdapter(aryAdapter1);
- }
- });
-
- mGridView01.setOnItemClickListener
- (new GridView.OnItemClickListener()
- {
- @Override
- public void onItemClick(AdapterView<?> parent,
- View v, int position, long arg3)
- {
- // TODO Auto-generated method stub
-
- /* 判断Adapter里的元素个数,判断被点击的是第几个元素名称 */
- switch(aryAdapter1.getCount())
- {
- case 4:
- /* position为GridView里的元素索引值 */
- mTextView01.setText(mGames1[position]);
- break;
- case 9:
- mTextView01.setText(mGames2[position]);
- break;
- }
- }
- });
- }
- }