Android---04---基礎2

昨天繼續講解了安卓中簡單的Widget

package com.example.test_uiwidget;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity {private EditText et;private Button bt;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main); bt=(Button)findViewById(R.id.mybutton);//1,找到組件 et=(EditText)findViewById(R.id.myedittext); bt.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {//2,獲得內容String text=et.getText().toString();//3.列印//Logcat 日誌System.out.println(text);Toast.makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show();}});}////當按鈕點擊時，調用方法//public void click(View v)//{////}public boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}