andriod CheckBox

<?xml version="1.0" encoding="UTF-8"?>

    <LinearLayout android:orientation="vertical" android:layout_height="fill_parent" android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android">

    <TextView android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="多选控件：" android:id="@+id/label"/>

    <CheckBox android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="AA" android:id="@+id/plain_cb"/>

    <CheckBox android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="BB" android:id="@+id/serif_cb"/>

    <CheckBox android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="CC" android:id="@+id/bold_cb"/>

    <CheckBox android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="DD" android:id="@+id/italic_cb"/>

    <Button android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="获取checkbox" android:id="@+id/button1"/>

</LinearLayout>

package com.example.yanlei.mytk;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.text.method.HideReturnsTransformationMethod;

import android.text.method.PasswordTransformationMethod;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;

import android.widget.CheckBox;

import android.widget.CompoundButton;

import android.widget.CompoundButton.OnCheckedChangeListener;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private CheckBox plainCB;

    private CheckBox serifCB;

    private CheckBox boldCB;

    private CheckBox italicCB;

    private Button button1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        plainCB=(CheckBox)findViewById(R.id.plain_cb);

        serifCB=(CheckBox)findViewById(R.id.serif_cb);

        boldCB=(CheckBox)findViewById(R.id.bold_cb);

        italicCB=(CheckBox)findViewById(R.id.italic_cb);

        button1=(Button)findViewById(R.id.button1);

        button1.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                String result="";

                if(plainCB.isChecked()){

                    result+=plainCB.getText()+"、";

                }

                if(serifCB.isChecked()){

                    result+=serifCB.getText()+"、";

                }

                if(boldCB.isChecked()){

                    result+=boldCB.getText()+"、";

                }

                if(italicCB.isChecked()){

                    result+=italicCB.getText()+"、";

                }

                if(!"".equals(result)){

                    result=result.substring(0,result.length()-1);

                }else{

                    result="你没有选择！！！";

                }

                setTitle("Checked:"+result);

            }

        });

    }

}

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