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📄 ex10.java

📁 Google Android应用框架原理与程序设计 第三版(中文高清PDF)高焕堂
💻 JAVA
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package com.misoo.ex10;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.view.View.OnClickListener;import android.widget.LinearLayout;import android.widget.RadioButton;public class ex10 extends Activity implements OnClickListener {    /** Called when the activity is first created. */	    private final int WC = ViewGroup.LayoutParams.WRAP_CONTENT; 	    DrawView dv;        @Override        public void onCreate(Bundle icicle) {            super.onCreate(icicle);            LinearLayout layout = new LinearLayout(this);            layout.setOrientation(LinearLayout.HORIZONTAL);            LinearLayout.LayoutParams param =             	new LinearLayout.LayoutParams(150, 300);            param.leftMargin = 1;            dv = new DrawView(this);            layout.addView(dv, param);            //--------------------------------------------            RadioButton ra;            ra = new RadioButton(this);               param = new LinearLayout.LayoutParams(WC, WC);            param.topMargin = 40;            layout.addView(ra, param);            //--------------------------------------------            ra.setOnClickListener(this);            setContentView(layout);        }		public void onClick(View arg0) {			// TODO Auto-generated method stub			dv.invalidate();		} }

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