摘要：1 public class MainActivity extends Activity { 2 3 private Button bt ; 4 protected void onCreate(Bundle savedInstanceState) { 5 super.onCreate(savedIn 阅读全文

摘要：在Action添加个TextView控件（上下文演示用）; package com.example.test; import android.app.Activity;import android.os.Bundle;import android.view.ContextMenu;import an 阅读全文