android程式設計實例入門 -Sample改寫分享 (2014/09/03)

 

此範例為最簡易的Android的程式碼(03\Sample2)，單純利用LinearLayout和一個大小10的按鈕陣列在畫面上顯示，程式碼如下:

 

 

package com.jashsample;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.VERTICAL);//設定布局方式-VERTICAL(垂直)、HORIZONTAL(水平)
setContentView(ll);
Button[] bt = new Button[10];
for(int i=0; i<bt.length; i++)
{
bt[i] = new Button(this);
bt[i].setText(Integer.toString(i));
ll.addView(bt[i]);
}
}
@Override
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;
}
}