Android Learning Tutorial Dynamic GridView Control use (6) _android

This example for you to share the Android dynamic GridView control the use of specific code for your reference, the specific content as follows

Mainactivity.java Code:

Package Siso.haha;

Import android.content.Intent;
Import android.support.v7.app.AppCompatActivity;
Import Android.os.Bundle;
Import Android.view.View;
Import Android.widget.Button;

public class Mainactivity extends Appcompatactivity {
 private Button btnstaggeredgridview;

 @Override
 protected void onCreate (Bundle savedinstancestate) {
 super.oncreate (savedinstancestate);
 Setcontentview (r.layout.activity_main);

 btnstaggeredgridview= (Button) Findviewbyid (R.id.btnstaggeredgridview);
 Btnstaggeredgridview.setonclicklistener (New View.onclicklistener () {
  @Override public
  void OnClick (View V ) {
  Intent Intent = new Intent ();
  Intent.setclass (mainactivity.this,staggeredgridviewactivity.class);
  Direct start of an activity
  startactivity (intent);}}
 )


 ;
}

Staggeredgridviewactivity.java Code:

Package Siso.haha;
Import android.app.Activity;
Import Android.content.Context;
Import Android.os.Bundle;
Import Android.util.Log;
Import Android.view.LayoutInflater;
Import Android.view.Menu;
Import Android.view.View;
Import Android.view.ViewGroup;

Import Android.widget.BaseAdapter;

Import Java.util.Random;
Import Viewhelper.staggeredgridview;

Import ViewHelper.StaggeredGridView.LayoutParams; public class Staggeredgridviewactivity extends activity {Private final static String TAG = Staggeredgridviewactivity.cla
 Ss.getsimplename ();
 Private Staggeredgridview MSGV;

 Private Sgvadapter Madapter; Private Staggeredgridview.onscrolllistener Mscrolllistener = new Staggeredgridview.onscrolllistener () {@Override Publ IC void onscrollstatechanged (viewgroup view, int scrollstate) {log.d (TAG, "[Onscrollstatechanged] scrollstate:" + Scrol
  Lstate);
   Switch (scrollstate) {case Scroll_state_idle:settitle ("Scroll_state_idle");

  Break Case Scroll_state_fling:settitle ("SCROll_state_fling ");

  Break
   Case Scroll_state_touch_scroll:settitle ("Scroll_state_touch_scroll");

  Break
  Default:break;
  @Override public void Onscroll (viewgroup view, int firstvisibleitem, int visibleitemcount, int totalitemcount) { LOG.D (TAG, "[Onscroll] Firstvisibleitem:" + Firstvisibleitem + "VisibleItemCount:" +visibleitemcount + "TotalItemCount:

 "+ Totalitemcount);

 }
 };
 @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);

 Setcontentview (R.layout.activity_staggeredgridview);
 Madapter = new Sgvadapter (this);
 MSGV = (Staggeredgridview) Findviewbyid (R.id.grid);
 Msgv.setcolumncount (4);
 Msgv.setadapter (Madapter);
 Msgv.setonscrolllistener (Mscrolllistener);  @Override public boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds the items to the action Bar if
 It is present.
 Getmenuinflater (). Inflate (R.menu.activity_main, menu);
 return true; Private Final Class Sgvadapter extends Baseadapter {layoutinflater minflater;
 Public Sgvadapter (Context ctx) {minflater = Layoutinflater.from (CTX);
 @Override public int GetCount () {return 30;
 @Override public Object getitem (int position) {return null;
 @Override public long getitemid (int position) {return 0;

 } Random r = new Random (); @Override public View getview (int position, View Convertview, ViewGroup parent) {//layoutparams is equivalent to a layout packet that encapsulates LA Yout position, height, width and other information.
  Assuming that an area on the screen is occupied by a layout, if you add a view to a layout, it is best to tell layout the desired layout, that is, to pass a recognized layoutparams.
  /* can be described as Layoutparams, chess on the chessboard, each piece occupies a position, that is, each piece has a position of information, such as this piece in 4 rows of 4 columns, where the "4 Rows 4 Columns" is the layoutparams of the pieces. But the Layoutparams class also simply describes the width and height can be set to three values: 1, a certain value, 2,fill_parent, that is, fill (as the parent container size), 3,wrap_content, that is, wrap the assembly.
  * Final Layoutparams LP;
  Final View v;
   Switch (position) {case 0:case 29:v = Minflater.inflate (R.layout.element_header, parent, false);
   LP = new Layoutparams (V.getlayoutparams ());Lp.span = Msgv.getcolumncount ();
  Break
   Case 8:case 9:case 18:case 19:v = Minflater.inflate (R.layout.element_item_small, parent, false);
   LP = new Layoutparams (V.getlayoutparams ());
   Lp.span = 1;
  Break
   Case 10:case 20:v = Minflater.inflate (R.layout.element_item_large, parent, false);
   LP = new Layoutparams (V.getlayoutparams ());
   Lp.span = 4;
  Break
   Default:v = Minflater.inflate (R.layout.element_item, parent, false);
   LP = new Layoutparams (V.getlayoutparams ());
   Lp.span = 2;
  Break
  } v.setlayoutparams (LP);
 return v;

 }
 }

}

Activity_main.xml content:

<?xml version= "1.0" encoding= "Utf-8"?> <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:paddingleft= "@dimen/activity_horizontal_margin" android:paddingright= "@dimen/activity_ Horizontal_margin "android:paddingtop=" @dimen/activity_vertical_margin "android:paddingbottom=" @dimen/activity_ Vertical_margin "tools:context=" siso.haha.MainActivity > <button android:layout_width= "match_parent" Android : layout_height= "wrap_content" android:text= "Dynamic GridView" android:id= "@+id/btnstaggeredgridview" Android:layout_
 Alignparenttop= "true" android:layout_centerhorizontal= "true"/> <button android:layout_width= "Match_parent" android:layout_height= "Wrap_content" android:text= "New button" android:id= "@+id/button2" android:layout_below= "@+" Id/btnstaggeredgridview "android:layout_centerhorizontal=" true "/> &LT Button android:layout_width= "match_parent" android:layout_height= "wrap_content" android:text= "New button" Android:
 Id= "@+id/button3" android:layout_below= "@+id/button2" android:layout_centerhorizontal= "true"/> <Button Android:layout_width= "Match_parent" android:layout_height= "wrap_content" android:text= "New button" android:id= "@+ Id/button4 "android:layout_below=" @+id/button3 "android:layout_centerhorizontal= true"/> Android: Layout_width= "Match_parent" android:layout_height= "wrap_content" android:text= "New button" android:id= "@+id/ Button5 "android:layout_below=" @+id/button4 "android:layout_centerhorizontal=" true "/> <button
 _width= "Match_parent" android:layout_height= "wrap_content" android:text= "New button" android:id= "@+id/button6" android:layout_below= "@+id/button5" android:layout_centerhorizontal= "true"/> <button android:layout_width= " Match_parent "android:layout_height=" wrap_content "android:text=" NEW Button "android:id=" @+id/button7 "android:layout_below=" @+id/button6 "android:layout_centerhorizontal=" true "/ > <button android:layout_width= "match_parent" android:layout_height= "wrap_content" android:text= "New button" a Ndroid:id= "@+id/button8" android:layout_below= "@+id/button7" android:layout_centerhorizontal= "true"/> < Button android:layout_width= "match_parent" android:layout_height= "wrap_content" android:text= "New button" Android:
 Id= "@+id/button9" android:layout_below= "@+id/button8" android:layout_centerhorizontal= "true"/> <Button Android:layout_width= "Match_parent" android:layout_height= "wrap_content" android:text= "New button" android:id= "@+ Id/button10 "android:layout_alignparentbottom=" true "android:layout_centerhorizontal=" true "/> </

 Relativelayout>

Activity_staggeredgridview.xml content:

<?xml version= "1.0" encoding= "Utf-8"?> <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= "staggeredgridviewactivity" >

 < Viewhelper.staggeredgridview
  android:id= "@+id/grid"
  android:layout_width= "Match_parent"
  android: layout_height= "Match_parent"/>

 </RelativeLayout>

Other:

Element_header.xml

<?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=" 56DP "
 android:background=" @drawable/bg_white_box "
 android:gravity=" center_vertical "
 android:orientation=" Horizontal ">

 <button
 android:id= "@+id/button1"
 android:layout_width= "Wrap_content"
 Wrap_content "
 android:layout_weight=" 1 "
 android:text=" to do something ... "/>

 <progressbar
 Android:id= "@+id/progressbar1"
 android:layout_width= "wrap_content"
 android:layout_height= "WRAP_" Content "
 android:layout_weight=" 1 "/>

</LinearLayout>

Element_item.xml:

<?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=" Wrap_content "
 android: background= "@drawable/bg_white_box"
 android:orientation= "vertical"
 android:padding= "2DP" >

 < ImageView
 android:id= "@+id/imageview1"
 android:layout_width= "match_parent"
 android:layout_height= "100DP"
 android:src= "@android: Color/holo_green_light"/>

 <textview
 android:id= "@+id/ TextView1 "
 android:layout_width=" match_parent "
 android:layout_height=" 56DP "
 android:layout_ Margin= "8DP"
 android:drawableright= "@android:d rawable/ic_menu_info_details"
 android:gravity= "Center_ Vertical "
 android:lines=" 2 "
 android:text=" list item text here, the image above "
 android:textappearance="? android:attr/ Textappearance "/>

</LinearLayout>

Element_item_large.xml

<?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=" Wrap_content "
 android: background= "@drawable/bg_white_box"
 android:orientation= "vertical"
 android:padding= "2DP" >

 < ImageView
 android:id= "@+id/imageview1"
 android:layout_width= "match_parent"
 android:layout_height= "160DP"
 android:src= "@android: Color/holo_orange_light"/>

 <textview
 android:id= "@+id/ TextView1 "
 android:layout_width=" match_parent "
 android:layout_height=" Wrap_content "
 android: Layout_margin= "8DP"
 android:drawableright= "@android:d rawable/ic_menu_info_details"
 android:gravity= " Center_vertical "
 android:lines=" 2 "
 android:text=" list item text here, the image above "
 android:textappearance="? Android:attr/textappearance "/>

</LinearLayout>

Element_item_small.xml

<?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=" Wrap_content "
 android: background= "@drawable/bg_white_box"
 android:orientation= "vertical"
 android:padding= "2DP" >

 < ImageView
 android:id= "@+id/imageview1"
 android:layout_width= "match_parent"
 android:layout_height= "100DP"
 android:src= "@android: Color/holo_red_light"/>

 <textview
 android:id= "@+id/ TextView1 "
 android:layout_width=" match_parent "
 android:layout_height=" 56DP "
 android:layout_ Margin= "8DP"
 android:drawableright= "@android:d rawable/ic_menu_info_details"
 android:gravity= "Center_ Vertical "
 android:lines=" 2 "
 android:text=" list item text here, the image above "
 android:textappearance="? android:attr/ Textappearance "/>

</LinearLayout>

Bg_white_box.xml

<?xml version= "1.0" encoding= "Utf-8"?> <shape xmlns:android=
"http://schemas.android.com/apk/res/" Android "
 android:shape=" Rectangle ">

 <solid android:color=" @android:d rawable/screen_background_ Light "/>

 <stroke
 android:width=" 1DP "
 android:color=" @android: Color/holo_blue_dark "

/> </shape>

Run the results as shown in figure:

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