Android 开发笔记___复选框__checkbox

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     android:layout_width="match_parent"
 3     android:layout_height="match_parent"
 4     android:orientation="vertical"
 5     android:padding="10dp" >
 6
 7     <CheckBox
 8         android:id="@+id/ck_system"
 9         android:layout_width="match_parent"
10         android:layout_height="wrap_content"
11         android:padding="10dp"
12         android:checked="false"
13         android:text="这是系统的CheckBox"
14         android:textColor="#000000"
15         android:textSize="17sp" />
16
17     <CheckBox
18         android:id="@+id/ck_custom"
19         android:layout_width="match_parent"
20         android:layout_height="wrap_content"
21         android:button="@drawable/checkbox_selector"
22         android:padding="10dp"
23         android:checked="false"
24         android:text="这个CheckBox换了图标"
25         android:textColor="#000000"
26         android:textSize="17sp" />
27
28 </LinearLayout>

java

 1 package com.example.alimjan.hello_world;
 2
 3 import android.content.Context;
 4 import android.content.Intent;
 5 import android.os.Bundle;
 6 import android.support.v7.app.AppCompatActivity;
 7 import android.widget.CheckBox;
 8 import android.widget.CompoundButton;
 9
10 /**
11  * Created by alimjan on 7/2/2017.
12  */
13
14 public class class_3_2_1 extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener {
15
16     @Override
17     protected void onCreate(Bundle savedInstanceState) {
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.code_3_2_1);
20         CheckBox ck_system = (CheckBox) findViewById(R.id.ck_system);
21         CheckBox ck_custom = (CheckBox) findViewById(R.id.ck_custom);
22         ck_system.setOnCheckedChangeListener(this);
23         ck_custom.setOnCheckedChangeListener(this);
24     }
25
26     @Override
27     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
28         String desc = String.format("您%s了这个CheckBox", isChecked?"勾选":"取消勾选");
29         buttonView.setText(desc);
30     }
31
32     public static void startHome(Context mContext) {
33         Intent intent = new Intent(mContext, class_3_2_1.class);
34         mContext.startActivity(intent);
35     }
36
37 }