Java动态生成组件

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    Log.v("LoginApp","输入用户姓名为：Toring");//日志记录，在控制台打印    LinearLayout linearLayout = new LinearLayout(this);    linearLayout.setOrientation(1);  //一行行显示    setContentView(linearLayout);    TextView textView = new TextView(this);    textView.setText("用户名：");    linearLayout.addView(textView);    EditText editText = new EditText(this);    linearLayout.addView(editText);    TextView textView1 = new TextView(this);    textView1.setText("密码：");    linearLayout.addView(textView1);    EditText editText1 = new EditText(this);    linearLayout.addView(editText1);    Button button = new Button(this);    button.setText("登陆");    linearLayout.addView(button);}