android登录窗口——基础编

大家一定在CS/BS的程序有登录窗口，ANDROID也应该是，下面我来做了一个界面欢迎大家参考！

main 代码

 

package net.blogjava.mobile; 
 
import android.app.Activity; 
import android.app.AlertDialog; 
import android.content.DialogInterface; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.LinearLayout; 
 
public class Main extends Activity implements OnClickListener 
{ 
    @Override 
    public void onClick(View v) 
    { 
        LinearLayout loginLayout = (LinearLayout) getLayoutInflater().inflate( 
                R.layout.login, null); 
        new AlertDialog.Builder(this).setIcon(R.drawable.login) 
                .setTitle("用户登录").setView(loginLayout).setPositiveButton("登录", 
                        new DialogInterface.OnClickListener() 
                        { 
                            public void onClick(DialogInterface dialog, 
                                    int whichButton) 
                            { 
                                // 编写处理用户登录的代码 
                            } 
                        }).setNegativeButton("取消", 
                        new DialogInterface.OnClickListener() 
                        { 
                            public void onClick(DialogInterface dialog, 
                                    int whichButton) 
                            { 
                                // 取消用户登录，退出程序 
 
                            } 
                        }).show(); 
 
    } 
 
    @Override 
    public void onCreate(Bundle savedInstanceState) 
    { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
        Button button = (Button) findViewById(R.id.button); 
        button.setOnClickListener(this); 
 
    } 
}