[Android] weather app layout exercise (2), androidapp

[Android] weather app layout exercise (2), androidapp

Exercise the GridView

MainActivity. java

Package com. example. weatherreport; import java. util. arrayList; import java. util. hashMap; import java. util. list; import java. util. map; import android. app. activity; import android. OS. bundle; import android. widget. gridView; import android. widget. simpleAdapter; public class MainActivity extends Activity {private GridView gv_airs; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); gv_airs = (GridView) findViewById (R. id. gv_airs); makeGridView ();}/*** assemble the GridView */private void makeGridView () {List <Map <String, String> data = new ArrayList <> (); map <String, String> item = null; item = new HashMap <> (); item. put ("title", "83"); item. put ("desc", "humidity (%)"); data. add (item); item = new HashMap <> (); item. put ("title", "11.3"); item. put ("desc", "visibility (km)"); data. add (item); item = new HashMap <> (); item. put ("title", "Level 2"); item. put ("desc", "southeast wind"); data. add (item); item = new HashMap <> (); item. put ("title", "weakest"); item. put ("desc", "UV"); data. add (item); item = new HashMap <> (); item. put ("title", "1005.5"); item. put ("desc", "pressure (mb)"); data. add (item); item = new HashMap <> (); item. put ("title", "22.4"); item. put ("desc", "somatosensory"); data. add (item); SimpleAdapter adapter = new SimpleAdapter (this, data, R. layout. main_grid_item, new String [] {"title", "desc"}, new int [] {R. id. TV _title, R. id. TV _desc}); gv_airs.setAdapter (adapter );}}

Activity_main.xml

<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" xmlns: tools = "http://schemas.android.com/tools" android: layout_width = "match_parent" android: layout_height = "match_parent" android: background = "#3186D9" tools: context = "$ {relativePackage }. $ {activityClass} "> <ImageView android: layout_width =" wrap_content "android: layout_height =" wrap_content "android: layout_marginLeft =" 10dp "android: layout_marginTop =" 10dp "android: src = "@ drawable/icon_home"/> <TextView android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerHorizontal = "true" android: layout_marginTop = "12dp" android: text = "Beijing" android: textColor = "# FDFDFD"/> <ImageView android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_alignParentRight = "true" android: layout_marginRight = "10dp" android: layout_marginTop = "10dp" android: src = "@ drawable/icon_more"/> <TextView android: id = "@ + id/TV _number" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerHorizontal = "true" android: layout_marginTop = "70dp" android: text = "29" android: textColor = "# fff" android: textSize = "50sp"/> <TextView android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_alignTop = "@ id/TV _number" android: layout_toRightOf = "@ id/TV _number" android: text = "°" android: textColor = "# FDFDFD" android: textSize = "30sp"/> <LinearLayout android: id = "@ + id/ll_weather" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_below = "@ id/TV _number" android: layout_centerHorizontal = "true" android: orientation = "horizontal"> <TextView android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerHorizontal = "true" android: text = "multi cloud" android: textColor = "# FDFDFD"/> <TextView android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerHorizontal = "true" android: text = "|" android: textColor = "# bbb"/> <TextView android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerHorizontal = "true" android: text = "" android: textColor = "# FDFDFD"/> </LinearLayout> <View android: id = "@ + id/gv_airs_top" android: layout_width = "match_parent" android: layout_height = "1dp" android: layout_below = "@ id/ll_weather" android: layout_marginTop = "20dp" android: background = "# ddd"/> <GridView android: id = "@ + id/gv_airs" android: layout_width = "match_parent" android: layout_height = "wrap_content" android: layout_below = "@ id/gv_airs_top" android: background = "# ddd" android: horizontalSpacing = "1dp" android: listSelector = "@ android: color/transparent "android: numColumns =" 3 "android: verticalSpacing =" 1dp "/> <View android: layout_width =" match_parent "android: layout_height =" 1dp "android: layout_below = "@ id/gv_airs" android: background = "# ddd"/> </RelativeLayout>

Main_grid_item.xml

<? Xml version = "1.0" encoding = "UTF-8"?> <RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" android: layout_width = "match_parent" android: layout_height = "match_parent" android: background = "#3186D9" android: layout_marginLeft = "1dp"> <LinearLayout android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: paddingTop = "25dp" android: paddingBottom = "25dp" android: layout_centerInParent = "true" android: gravity = "center" android: orientation = "vertical"> <TextView android: id = "@ + id/TV _desc" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: text = "humidity (%)" android: textColor = "# ddd" android: textSize = "12sp"/> <TextView android: id = "@ + id/TV _title" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: text = "83" android: textColor = "# fff" android: textSize = "22sp"/> </LinearLayout> </RelativeLayout>