Simple Application of Android image browser-gallery

This week, I learned gallery again by taking advantage of the rest time, and then I wrote a picture browsing stuff.

First, let's take a look at the interface:

Click the image below to display it.

The Code is as follows:

View code

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >        <ImageView            android:id="@+id/imageView"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:background="@drawable/star_red"            android:scaleType="matrix"             android:layout_weight="4"            />        <Gallery            android:id="@+id/gallery"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_gravity="center_vertical"            android:layout_weight="1"            android:spacing="5dp" >        </Gallery></LinearLayout>

View code

1 package COM. example. griview; 2 3 Import javax. XML. parsers. saxparser; 4 Import javax. XML. parsers. saxparserfactory; 5 6 Import Org. XML. sax. helpers. defaulthandler; 7 Import Org. xmlpull. v1.xmlserializer; 8 9 Import android. OS. bundle; 10 Import android. app. activity; 11 import android. app. activitymanager; 12 Import android. content. context; 13 Import android. view. menu; 14 Import android. view. view; 15 im Port android. view. viewgroup; 16 Import android. view. viewgroup. layoutparams; 17 import android. widget. adapterview; 18 Import android. widget. adapterview. onitemclicklistener; 19 Import android. widget. baseadapter; 20 Import android. widget. gallery; 21 import android. widget. gridview; 22 Import android. widget. imageview; 23 Import android. widget. toast; 24 25 public class mainactivity extends activity {26 27 private gallery Gallery; 28 private imageview; 29 protected void oncreate (bundle savedinstancestate) {30 super. oncreate (savedinstancestate); 31 setcontentview (R. layout. relative); 32 gallery = (Gallery) findviewbyid (R. id. gallery); 33 imageview = (imageview) findviewbyid (R. id. imageview); 34 Gallery. setadapter (New imageadapter (this); 35 36 Gallery. setonitemclicklistener (New onitemclicklis Tener () {37 38 public void onitemclick (adapterview <?> Parent, view, int position, 39 Long ID) {40 imageview. setbackgroundresource (mthumbids [position]); 41 // The Position of the clicked gridview element is 42 toast. maketext (mainactivity. this, mthumbids [position], toast. length_long ). show (); 43} 44 45 46}); 47 48} 49 50 public class imageadapter extends baseadapter {51 52 private context mcontext; 53 // declare imageadapter 54 public imageadapter (context) 55 {56 this. mcontext = context; 57} 58 // obtain the number of images 59 Public int getcount () {60 return mthumbids. length; 61} 62 63 // obtain the position of the image in the database 64 public object getitem (INT position) {65 return mthumbids [position]; 66} 67 68 // obtain the position of the image in the library 69 public long getitemid (INT position) {70 return 0; 71} 72 73 public view getview (INT position, view convertview, viewgroup parent) {74 75 imageview; 76 if (convertview = NULL) 77 {78 imageview = new imageview (mcontext); 79 imageview. setlayoutparams (new gallery. layoutparams (75, 75); 80 imageview. setscaletype (imageview. scaletype. fit_center); 81 imageview. setpadding (8, 8, 8, 8); 82} 83 else {84 imageview = (imageview) convertview; 85} 86 87 imageview. setimageresource (mthumbids [position]); 88 return imageview; 89} 90 91} 92 93 // display picture 94 private integer [] mthumbids = {95 R. drawable. heart, 96 R. drawable. heart_broken, 97 R. drawable. heart_delete, 98 R. drawable. heart_preferences, 99 R. drawable. heart_editing, 100 r. drawable. heart_new, 101 R. drawable. star_red, 102 R. drawable. meishi3, 103 R. drawable. meishi4, 104 R. drawable. meishi5, 105}; 106 public Boolean oncreateoptionsmenu (menu) {107 // inflate the menu; this adds items to the action bar if it is present.108 getmenuinflater (). inflate (R. menu. main, menu); 109 return true; 110} 111 112}

I learned this week and look forward to the next learning progress...