- import java.text.SimpleDateFormat;
- import java.util.Date;
-
- import android.app.Activity;
- import android.app.AlertDialog;
- import android.content.Intent;
- import android.os.Bundle;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.widget.Button;
-
- public class main extends Activity implements OnClickListener {
- /** Called when the activity is first created. */
- private Button btnshowDate;
- private Button btnshowTime;
-
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- btnshowDate = (Button) findViewById(R.id.btnShowDate);
- btnshowTime = (Button) findViewById(R.id.btnShowTime);
-
- btnshowDate.setOnClickListener(this);
- btnshowTime.setOnClickListener(this);
- }
-
- @Override
- public void onClick(View v) {
- // TODO Auto-generated method stub
- switch (v.getId()) {
- case R.id.btnShowDate: {
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
- showDialog("當前日期", sdf.format(new Date()));
- break;
- }
- case R.id.btnShowTime: {
- SimpleDateFormat sdf = new SimpleDateFormat("HH:mm;ss");
- showDialog("當前時間", sdf.format(new Date()));
- break;
- }
- }
- }
-
- private void showDialog(String title, String msg) {
- AlertDialog.Builder builder = new AlertDialog.Builder(this);
- builder.setIcon(android.R.drawable.ic_dialog_info);
- builder.setTitle(title);
- builder.setMessage(msg);
- builder.setPositiveButton("確定", null);
- builder.create().show();
- Intent intent;
- }
- }
Android創建項目時所填寫的名稱和Android程序之間的關係
在創建Android項目時(Eclipse+AndroidSDK),需要填寫的信息很多,如下圖所示
Android項目創建完成之後:
在Android模擬器中:
在Android程序列表中顯示的名稱:
總結:
1.Project name:僅僅在Eclipse中使用
2.Application name:在Android程序列表和Android程序運行時,顯示的是“Application name”
3.Package name:源代碼包的位置
4.Create Activity:選擇的化會創建一個默認的activity