Android 开发笔记___switch__开关

default switch

 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     <LinearLayout
 8         android:layout_width="match_parent"
 9         android:layout_height="wrap_content"
10         android:orientation="horizontal"
11         android:paddingTop="10dp" >
12 
13         <TextView
14             android:layout_width="0dp"
15             android:layout_height="match_parent"
16             android:layout_weight="1"
17             android:gravity="left|center_vertical"
18             android:text="Switch开关："
19             android:textColor="#000000"
20             android:textSize="17sp" />
21 
22         <LinearLayout
23             android:layout_width="0dp"
24             android:layout_height="wrap_content"
25             android:layout_gravity="right"
26             android:layout_weight="1"
27             android:orientation="vertical" >
28 
29             <Switch
30                 android:id="@+id/sw_status"
31                 android:layout_width="100dp"
32                 android:layout_height="50dp" />
33         </LinearLayout>
34     </LinearLayout>
35 
36     <TextView
37         android:id="@+id/tv_result"
38         android:layout_width="match_parent"
39         android:layout_height="wrap_content"
40         android:paddingTop="10dp"
41         android:gravity="left"
42         android:textColor="#000000"
43         android:textSize="17sp" />
44 
45 </LinearLayout>
 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.CompoundButton;
 8 import android.widget.Switch;
 9 import android.widget.TextView;
10 
11 /**
12  * Created by alimjan on 7/2/2017.
13  */
14 
15 public class class_3_2_2 extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener {
16 
17     private Switch sw_status;
18     private TextView tv_result;
19 
20     @Override
21     protected void onCreate(Bundle savedInstanceState) {
22         super.onCreate(savedInstanceState);
23         setContentView(R.layout.code_3_2_2);
24         sw_status = (Switch) findViewById(R.id.sw_status);
25         tv_result = (TextView) findViewById(R.id.tv_result);
26         sw_status.setOnCheckedChangeListener(this);
27         refreshResult();
28     }
29 
30     private void refreshResult() {
31         String result = String.format("Switch按钮的状态是%s",
32                 (sw_status.isChecked())?"开":"关");
33         tv_result.setText(result);
34     }
35 
36     @Override
37     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
38         refreshResult();
39     }
40 
41     public static void startHome(Context mContext) {
42         Intent intent = new Intent(mContext, class_3_2_2.class);
43         mContext.startActivity(intent);
44     }
45 }

   仿IOS风格

 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     <LinearLayout
 8         android:layout_width="match_parent"
 9         android:layout_height="wrap_content"
10         android:orientation="horizontal"
11         android:paddingTop="10dp" >
12 
13         <TextView
14             android:layout_width="0dp"
15             android:layout_height="match_parent"
16             android:layout_weight="1"
17             android:gravity="left|center_vertical"
18             android:text="仿iOS的开关："
19             android:textColor="#000000"
20             android:textSize="17sp" />
21 
22         <LinearLayout
23             android:layout_width="0dp"
24             android:layout_height="wrap_content"
25             android:layout_gravity="right"
26             android:layout_weight="1"
27             android:orientation="vertical" >
28 
29             <CheckBox
30                 android:id="@+id/ck_status"
31                 android:layout_width="100dp"
32                 android:layout_height="50dp"
33                 android:background="@drawable/switch_selector"
34                 android:button="@null" />
35         </LinearLayout>
36     </LinearLayout>
37 
38     <TextView
39         android:id="@+id/tv_result"
40         android:layout_width="match_parent"
41         android:layout_height="wrap_content"
42         android:paddingTop="10dp"
43         android:gravity="left"
44         android:textColor="#000000"
45         android:textSize="17sp" />
46 
47 </LinearLayout>

style

1 <?xml version="1.0" encoding="utf-8"?>
2 <selector xmlns:android="http://schemas.android.com/apk/res/android">
3     <item android:state_checked="true" android:drawable="@drawable/switch_on"/>
4     <item android:drawable="@drawable/switch_off"/>
5 </selector>

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 import android.widget.TextView;
10 
11 /**
12  * Created by alimjan on 7/2/2017.
13  */
14 
15 public class class_3_2_2_2 extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener {
16 
17     private CheckBox ck_status;
18     private TextView tv_result;
19 
20     @Override
21     protected void onCreate(Bundle savedInstanceState) {
22         super.onCreate(savedInstanceState);
23         setContentView(R.layout.code_3_2_2_2);
24         ck_status = (CheckBox) findViewById(R.id.ck_status);
25         tv_result = (TextView) findViewById(R.id.tv_result);
26         ck_status.setOnCheckedChangeListener(this);
27         refreshResult();
28     }
29 
30     private void refreshResult() {
31         String result = String.format("仿iOS开关的状态是%s",
32                 (ck_status.isChecked())?"开":"关");
33         tv_result.setText(result);
34     }
35 
36     @Override
37     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
38         refreshResult();
39     }
40 
41     public static void startHome(Context mContext) {
42         Intent intent = new Intent(mContext, class_3_2_2_2.class);
43         mContext.startActivity(intent);
44     }
45 }

 

posted @ 2017-07-02 14:50  alm  阅读(850)  评论(0)  编辑  收藏  举报