Settings for the ListView split line in Android

Today we find that the split line between the ListView item on many apps shows only the right part, while the left half does not, and the first response is to set a background image for the split line OK:

android:divider= "@mipmap/line"

However, later on the Internet to find information found that you can define a drawable, set it as the ListView of the Split Line (divider)

：

Listview_item_divider under 1.drawable:

1 <?xml version= "1.0" encoding= "Utf-8"?>2 <inset xmlns:android= "/http Schemas.android.com/apk/res/android "3     android:insetleft=" 100DP "4     android:insetright= "15DP"5     android:drawable= "@color/line_gray" >67 </inset>

2.activity_main in the ListView:

1 <ListView23         android:id= "@+id/lv_main"4         android: divider= "@drawable/listview_item_divider"5         android:dividerheight= "1DP"6         android: Layout_width= "Match_parent"7         android:layout_height= "Match_parent" >8 </listview >

3.item layout:

1<?xml version= "1.0" encoding= "Utf-8"?>2<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"3Android:layout_width= "Match_parent"4android:layout_height= "Wrap_content"5android:orientation= "Horizontal"6android:padding= "3DP" >7 8<ImageView9Android:id= "@+id/img_item"TenAndroid:layout_width= "100DP" Oneandroid:layout_height= "100DP" Aandroid:contentdescription= "@null" -Android:scaletype= "Fitxy" -android:src= "@mipmap/octocat"/> the  -<TextView -Android:id= "@+id/tv_item" -Android:layout_width= "Match_parent" +android:layout_height= "100DP" -android:gravity= "Center" +android:text= "TITLE" AAndroid:textsize= "15SP"/> at  -</LinearLayout>

4.MainActivity (because it is relatively simple, so there is no strict code format)

1  Public classMainactivityextendsappcompatactivity {2 3     PrivateListView Mlistview;4 5 @Override6     protected voidonCreate (Bundle savedinstancestate) {7         Super. OnCreate (savedinstancestate);8 Setcontentview (r.layout.activity_main);9Mlistview =(ListView) Findviewbyid (r.id.lv_main);Ten         //set the data for the ListView (without changing the picture, just set a different title) Onelist<map<string, string>> list =NewArraylist<>(); A          for(inti = 0; I < 20; i++) { -map<string, string> map =NewHashmap<>(); -Map.put ("title", "Talon" +i); the list.add (map); -         } -Simpleadapter adapter =NewSimpleadapter ( This, List, -R.layout.listview_item,Newstring[]{"title"}, +                 New int[]{r.id.tv_item}]; - Mlistview.setadapter (adapter); +     } A}

About the bad place in the text, welcome you to criticize correct!

Settings for the ListView split line in Android