Imitation qq to send pictures when added mask (want to see sports car Please enter)

Source: Internet
Author: User

The main implementation to the GridView plus checkbox selected after the mask can be added Fruitadapter

Adding a checkbox and mask is just a matter of finishing in Fruitadapter

 Public  class fruitadapter extends baseadapter {    PrivateLayoutinflater Minflater;PrivateList<fruit> mfruits;Private BooleanMcheckboxmanager[]; Public Fruitadapter(Layoutinflater minflater, list<fruit> mfruits) { This. Minflater = Minflater; This. mfruits = mfruits; Mcheckboxmanager =New Boolean[Mfruits.size ()]; }@Override     Public int GetCount() {returnMfruits.size (); }@Override     PublicObjectGetItem(intPosition) {returnPosition }@Override     Public Long Getitemid(intPosition) {returnPosition }@Override     PublicViewGetView(Final intPosition, View Convertview, ViewGroup parent) {Viewholder VH =NULL;if(Convertview = =NULL) {Convertview = Minflater.inflate (R.layout.gridview_item,NULL); VH =NewViewholder ();            Vh.imageview = (ImageView) Convertview.findviewbyid (r.id.image);            Vh.textview = (TextView) Convertview.findviewbyid (R.id.textview);            Vh.checkbox = (CheckBox) Convertview.findviewbyid (R.id.checkbox);            Vh.imageviewtint = (ImageView) Convertview.findviewbyid (r.id.imageview_tint);        Convertview.settag (VH); }Else{VH = (Viewholder) convertview.gettag ();        } Fruit Fruit = Mfruits.get (position);        Vh.imageView.setImageResource (Fruit.getimg ());        Vh.textView.setText (Fruit.getname ()); Vh.checkBox.setOnCheckedChangeListener (NewCompoundbutton.oncheckedchangelistener () {@Override             Public void oncheckedchanged(Compoundbutton Buttonview,BooleanisChecked) {mcheckboxmanager[position] = isChecked; LOG.D ("Masks",""+ mcheckboxmanager[position] + position);            Notifydatasetchanged ();        }        }); Vh.checkBox.setChecked (Mcheckboxmanager[position]);if(Mcheckboxmanager[position])        {vh.imageViewTint.setVisibility (view.visible); }Else{vh.imageViewTint.setVisibility (view.invisible); }returnConvertview; }StaticClass Viewholder {TextView TextView;        ImageView ImageView;        CheckBox checkbox;    ImageView Imageviewtint; }}

In addition, the following XML file implements the mask

<?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:orientation  =;     <imageview  android:id
      = "@+id/image"  android:layout_width  =< Span class= "Hljs-value" > "100DP"  android:layout_height  =" 100DP " android:layout_centerinparent  =" true "/>     <textview  android:id  = "@+id/textview"  android:layout_width  = "wrap_content"  android:layout_height  = "wrap_content"  android:layout_below  = "@+id/image"  android:layout_centerhorizontal  = android:layout_margintop  =< Span class= "Hljs-value" > "10DP"  android:gravity  =" center "/>     <CheckBoxandroid:id= "@+id/checkbox"android:layout_width="Wrap_ Content "android:layout_height=" Wrap_content "android:layout_alignparentright= "true" android:focusable="false" />                                        <!--This imageview when the key to implement the mask needs to set visibility start to invisible; use tint to set the background color mask do not know why is not implemented, and then changed to background, Also have the classmate said should use AlignTop and alignleft, I tried all can, not this reason, the current elimination method the only difference is to use background tint above ... -    <ImageViewandroid:id="@+id/imageview_tint"android:layout_width=  "Match_parent"android:layout_height="Match_parent"android:background="@ Color/green_tind "android:visibility=" Invisible "android:layout_alignright ="@+id/checkbox"android:layout_alignbottom="@+id/textview" />                                                        </relativelayout>
The following are other files
 Public  class gridviewactivity extends actionbaractivity {    PrivateLayoutinflater Minflater;Privatelist<fruit>mfruits;PrivateGridView Mgridview;PrivateFruitadapter Fruitadapter;@Override    protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (R.layout.activity_grid_view); mgridview= (GridView) Findviewbyid (R.id.gridview);//Forget to get Inflater will report null pointerMinflater=getlayoutinflater (); mfruits=NewArraylist<> (); for(intI=0;i<Ten; i++) {Fruit apple=NewFruit ("Apple", R.MIPMAP.CAR1); Fruit banana=NewFruit ("Banana", R.MIPMAP.CAR2); Fruit grape=NewFruit ("Grape", R.MIPMAP.CAR3); Fruit car=NewFruit ("Grape", R.MIPMAP.CAR4); Fruit car1=NewFruit ("Grape", R.MIPMAP.CAR5); Fruit car2=NewFruit ("Grape", R.MIPMAP.CAR6); Fruit car3=NewFruit ("Grape", R.MIPMAP.CAR7); Fruit car4=NewFruit ("Grape", R.MIPMAP.CAR8); Fruit car5=NewFruit ("Grape", R.MIPMAP.CAR9);            Mfruits.add (Apple);            Mfruits.add (banana);            Mfruits.add (grape);            Mfruits.add (car);            Mfruits.add (CAR1);            Mfruits.add (CAR2);            Mfruits.add (CAR3);            Mfruits.add (CAR4);        Mfruits.add (CAR5); } fruitadapter=NewFruitadapter (minflater,mfruits);    Mgridview.setadapter (Fruitadapter); }@Override     Public Boolean Oncreateoptionsmenu(Menu menu) {Getmenuinflater (). Inflate (R.menu.menu_grid_view, menu);return true; }@Override     Public Boolean onoptionsitemselected(MenuItem Item) {intid = item.getitemid ();if(id = = r.id.action_settings) {return true; }return Super. onoptionsitemselected (item); }}******************************************** Public  class Fruit {    PrivateString name;Private intimg Public Fruit(String name,intIMG) { This. name = name; This. img = img; } PublicStringGetName() {returnName } Public void SetName(String name) { This. name = name; } Public int getimg() {returnimg } Public void setimg(intIMG) { This. img = img; }}



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Imitation qq to send pictures when added mask (want to see sports car Please enter)

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