android toast 和checkbox and radiogroup的使用
1. main.xml 布局文件
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2. Java 调用
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package com.helloworld;import android.app.Activity;import android.os.Bundle;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.RadioGroup;import android.widget.RadioGroup.OnCheckedChangeListener;import android.widget.Toast;/** * 常控件的使用 * @author liuqing * @version 1.0 * */public class ViewCompoentActivity extends Activity {private RadioGroup radioGroup;private CheckBox running;private CheckBox reading;private CheckBox swinning; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.radioGroup = (RadioGroup)this.findViewById(R.id.groupId); this.reading = (CheckBox)this.findViewById(R.id.reading); this.swinning = (CheckBox)this.findViewById(R.id.swinning); this.running = (CheckBox)this.findViewById(R.id.running); //对readioGroup 添加监听器 this.radioGroup.setOnCheckedChangeListener( new OnCheckedChangeListener(){ //这里是返加的ID值@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId) {if (checkedId == R.id.female) {Toast.makeText(getApplication(), "female",Toast.LENGTH_SHORT).show();}else if (checkedId == R.id.male) {Toast.makeText(getApplication(), "male", Toast.LENGTH_SHORT).show();}} } ); this.running.setOnCheckedChangeListener (new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {//如果被选中isChecked 值为trueif (isChecked) {System.out.println("running is true");Toast.makeText(getApplication(), "running is true", Toast.LENGTH_SHORT).show();}else {System.out.println("running is false");}} } ); this.swinning.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {if (isChecked) {System.out.println("swinning is true");Toast.makeText(getApplication(), "swinning is true", Toast.LENGTH_SHORT).show();}else {System.out.println("swinning is false");}} } ); this.reading.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {if (isChecked) {System.out.println("reading is true");Toast.makeText(getApplication(), "reading is true",Toast.LENGTH_SHORT).show();}else {System.out.println("reading is false");}} } ); }}
