多选 CheckBox

package com.example.test1;

 

import android.os.Bundle;

import android.R.integer;

import android.app.Activity;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.*;

 

 

public class CheckBoxActivity extends Activity {

 

 Button btnok;

 LinearLayout layout;

 TextView tvshow;

 

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_check_box);

 

  btnok=(Button)findViewById(R.id.btnok);

 

  //放个LinearLayout布局，上面放多个checkbox,然后循环判断

  layout=(LinearLayout)findViewById(R.id.likeLayout);

 

  tvshow=(TextView)findViewById(R.id.tvshow);

  btnok.setOnClickListener(btnokClickListener);

 }

 

 OnClickListener btnokClickListener=new OnClickListener() {

 

  @Override

  public void onClick(View v) {

   

   tvshow.setText("");

   int ChildCount=layout.getChildCount();

   for(int i=0;i<ChildCount;i++){

    if(layout.getChildAt(i) instanceof CheckBox)

    {

     CheckBox cb=(CheckBox)layout.getChildAt(i);

     if(cb.isChecked())

     {

      tvshow.setText(tvshow.getText()+""+cb.getText());

     }

    }

   }

   

  }

 };

 

 

}