Code write a nine grid layout display picture

Do not set the layout in the XML, write a layout directly in the code, display the downloaded picture, as shown, the picture is a little ugly

Add a linearlayout to the 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 "tools:context=" ${ Relativepackage}.${activityclass} " >                    <textview  android:id  = "@+id/text"  android:layout_width  =< Span class= "Hljs-value" > "wrap_content"  android:layout_height  = "wrap_content"  android:text  =" Nine Gongge display picture "/>      <linearlayoutandroid:id="@+id/report_photo_layout"android:layout_width ="Match_parent"android:layout_height="Wrap_content"android:layout_margin ="10dip"android:orientation="vertical"android:layout_below= "@+id/text"/>                                                       </relativelayout>

Also add a layout, display the picture view_files_image.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:gravity  =;     <ImageViewandroid:id= "@+id/image"android:layout_width="Match_ Parent "android:layout_height=" Match_parent "android:layout_centerhorizontal= "true" Android:scaletype="Centercrop" />                                        </relativelayout>

The other is the code:

 Public  class mainactivity extends Activity {    PrivateLinearLayout Layoutphotos;//    Privatelinkedhashmap<string, string> Choosephotos =NewLinkedhashmap<string, string> ();//Selected photos    PrivateDisplaymetrics DM =NewDisplaymetrics ();@Override    protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (R.layout.activity_main); Layoutphotos = (linearlayout) Findviewbyid (r.id.report_photo_layout);//choosephotos Oh let's add a picture addressChoosephotos.put ("1","Http://lllqmw.qiniudn.com/1.png"); Choosephotos.put ("2","Http://lllqmw.qiniudn.com/2.png"); Choosephotos.put ("3","Http://lllqmw.qiniudn.com/3.png"); Choosephotos.put ("4","Http://lllqmw.qiniudn.com/4.png"); Choosephotos.put ("5","Http://lllqmw.qiniudn.com/5.png"); Choosephotos.put ("6","Http://lllqmw.qiniudn.com/6.png"); Choosephotos.put ("7","Http://lllqmw.qiniudn.com/7.png"); Choosephotos.put ("8","Http://lllqmw.qiniudn.com/8.png");//Show PicturesLayoutshowfiles (); }/** * Nine Gongge the way to display the downloaded picture * /    Private void Layoutshowfiles() {layoutphotos.removeallviews ();//Four views per line, calculate the width of the firstGetwindowmanager (). Getdefaultdisplay (). Getmetrics (DM);intmargins = (int) dm.density *2;intPhotowidth = (int) (((Dm.widthpixels-dm.density * -) /3)-Margins *2.5); LOG.I ("Info","The size of each view is:"+ Photowidth +", the spacing is:"+ margins); LinearLayout sublayout =NewLinearLayout ( This);        Sublayout.setorientation (linearlayout.horizontal); Layoutparams Subparams =NewLayoutparams (Photowidth, photowidth); Subparams.setmargins (margins, margins, margins, margins);inti =0; Iterator<entry<string, string>> iter = Choosephotos.entryset (). Iterator (); while(Iter.hasnext ()) {Sublayout.addview (Createlayoutphoto (i, Iter.next (). GetValue (), subparams));ifI3==2) {Layoutphotos.addview (sublayout,NewLayoutparams (Layoutparams.match_parent, layoutparams.wrap_content)); Sublayout =NewLinearLayout ( This);            Sublayout.setorientation (linearlayout.horizontal);        } i++; }//Calculate the sublayout can also put a few view, if already put manufactoring 4, just new line        if((3-Choosephotos.size ()%3) ==3) {sublayout =NewLinearLayout ( This);        Sublayout.setorientation (linearlayout.horizontal); } Layoutphotos.addview (Sublayout,NewLayoutparams (Layoutparams.match_parent, layoutparams.wrap_content)); }/** * Generate a picture * @param ID * @param path * @param params * @return  * *    PrivateViewCreatelayoutphoto(Final intImageposition,FinalString path, layoutparams params) {View v = getlayoutinflater (). Inflate (R.layout.view_files_image,NULL);        V.setlayoutparams (params); Imageloader.getinstance (). DisplayImage (Path, (ImageView) V.findviewbyid (r.id.image), softapplication.imageoptions );returnV }}

Application required to download the image

 Public  class softapplication extends application {       Public StaticDisplayimageoptions imageoptions;@Override     Public void onCreate() {Super. OnCreate (); Initimageloader (Getapplicationcontext ());//Set picture properties: Download the picture, download the failed picture, whether round cornerImageoptions =NewDisplayimageoptions.builder (). Cacheinmemory (true). Cacheondisc (true). Showimageonloading (r.drawable.default_loading)//Load start default picture. Showimageforemptyuri (r.drawable.default_loading)//URL to display the picture in empty, and put it in the drawable. Showimageonfail (r.drawable.default_loading)//loading the picture with a problem, the picture appears. Imagescaletype (Imagescaletype.in_sample_int). Bitmapconfig (Bitmap.Config.RGB_565). build (); } Public Static void Initimageloader(Context context) {imageloaderconfiguration config =NewImageloaderconfiguration.builder (context). threadpriority (Thread.norm_priority-2). Denycacheimagemultiplesizesinmemory (). Disccachefilenamegenerator (NewMd5filenamegenerator ()). Tasksprocessingorder (Queueprocessingtype.lifo). Writedebuglogs ()//Remove for release app. build ();    Imageloader.getinstance (). init (config); }   }

There's a place that's easy to forget: Androidmanifest.xml statement

  <application        android:name="com.example.demo_imagedisplay.SoftApplication"

OK, click Demo_imagedisplay to download the full code.

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Code write a nine grid layout display picture