1月16日复选框

checkbox 学习
 1 package com.example.firstapp;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.os.Bundle;
 6 import android.widget.CheckBox;
 7 import android.widget.CompoundButton;
 8 import android.widget.Toast;
 9 
10 public class CheckBoxActivity extends AppCompatActivity {
11 
12 
13     private CheckBox mCb5,mCb6;
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.activity_check_box);
18         mCb5=findViewById(R.id.cb_5);
19         mCb6=findViewById(R.id.cb_6);
20 
21         mCb5.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
22             @Override
23             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
24                 Toast.makeText(CheckBoxActivity.this,isChecked?"5选中":"5未选中",Toast.LENGTH_SHORT).show();
25             }
26         });
27 
28         mCb6.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
29             @Override
30             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
31                 Toast.makeText(CheckBoxActivity.this,isChecked?"6选中":"6未选中",Toast.LENGTH_SHORT).show();
32             }
33         });
34     }
35 }
1月16日 复选框

1月16日复选框
