LoginDialog l=new LoginDialog();
l.LoginDialog2(M.this);
我写了个LoginDialog类 如下 结果 老是 报错
public class LoginDialog extends Activity implements OnClickListener {
private Context mcontext=null;
public void LoginDialog2 (Context context) {
this.mcontext = context;
LayoutInflater layoutInflater = LayoutInflater.from(context);
View longinDialogView = layoutInflater.inflate(MResource.getIdByName(getApplication(), "layout", "logindialog"), null);
//获取布局中的控件
EditText mUserName = (EditText)longinDialogView.findViewById( MResource.getIdByName(getApplication(), "id", "edit_username"));
EditText mPassword = (EditText)longinDialogView.findViewById( MResource.getIdByName(getApplication(), "id", "edit_password"));
//创建一个AlertDialog对话框
AlertDialog longinDialog = new AlertDialog.Builder(context)
.setTitle("登录框")
.setView(longinDialogView) //加载自定义的对话框式样
.setPositiveButton("确定", this)
.setNeutralButton("取消", this)
.create();
longinDialog.show();
}
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
}
}
错误提示 java.lang.NullPointerException