突出显示gridview上的选定项目 [英] Highlight selected item on a gridview
问题描述
我试图突出显示gridview上的选定项目(dinamically填充了适配器),但它不起作用。
我做了研究,我甚至试过精确地复制其他人的选择器,甚至他们把它放在gridview上的方式,但我不能把它的工作。
它只是没有做任何事情。每个项目的背景都是白色的(就像我想要的),但是当我按下它(它位于textview或imageview的顶部(gridview项目的一部分))时,它不会执行任何操作。 imageView或textview,它会做我想做的。
编辑:我有图像和textviews的监听器,所以它可能会干扰这个选择器?解决这个问题?
以下是我创建gridview的活动的代码:
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.highway_appselection_activity);
gridView =(GridView)findViewById(R .id.HighwayGridView);
gridView.setSelector(new ColorDrawable(Color.BLACK));
下面是这个gridview中每个项目的xml :(我将背景定义为选择器)
<?xml version =1.0encoding =ut F-8\" >?;
< LinearLayout xmlns:android =http://schemas.android.com/apk/res/android
android:layout_width =match_parent
android:layout_height =match_parent
android:id =@ + id / HighwayGridViewItem
android:orientation =vertical
android:background =@ drawable / highway_appselection_selector
android:padding =5dp >
< cm.aptoide.lite.HighwayCustomImageView
android:layout_width =72dp
android:layout_height =72dp
android:id =@ id / highwayGridViewItemIcon
android:background =#FFFFFF
android:layout_gravity =center
android:scaleType =centerCrop
android:padding =5dp
android:clickable =true/>
<! - 这是否需要成为我的自定义图像视图?在这方面挑战 - >
< LinearLayout
android:layout_width =match_parent
android:layout_height =wrap_content
android:orientation =horizontal>
TextView
android:layout_width =wrap_content
android:layout_height =match_parent
android:id =@ + id / highwayGridViewItemName
android:textColor =#000000
android:text =texto de teste
android:textSize =10sp
android:focusable =true
android :ellipsize =marquee
android:marqueeRepeatLimit =marquee_forever
android:layout_weight =2
android:textStyle =bold
android:paddingRight =5dp
android:layout_marginLeft =5dp
android:clickable =true/>
< ImageView
android:layout_width =wrap_content
android:layout_height =wrap_content
android:src =@ drawable / info_icon
android:padding =5dp
android:clickable =true
android:id =@ + id / highwayGridViewItemInfoButton/>
这里是我的选择器:
< selector xmlns:android =http:/ / android / exit:
< item android:state_enabled =trueandroid:state_pressed =trueandroid:drawable =@ color / green_main_color/>
< item android:state_enabled =trueandroid:state_focused =trueandroid:drawable =@ color / green_main_color/>
< item android:state_enabled =trueandroid:state_selected =trueandroid:drawable =@ color / green_main_color/>
< item android:drawable =@ android:color / white/>
我可能会错过一些东西,我是Android的新手,很抱歉,如果有新手的错误。 创建文件 selector.xml as:
<?xml version =1.0encoding =utf-8? >
< selector xmlns:android =http://schemas.android.com/apk/res/android>
< item android:drawable =@ color / green_main_colorandroid:state_pressed =true/>
< item android:drawable =@ color / green_main_colorandroid:state_selected =true/>
< item android:drawable =@ color / white/>
< / selector>
将您的选择器文件放在可绘制文件夹中作为 drawable / selector.xml
然后在你的gridView中:
< GridView
android:id =@ + id / gridview
android:layout_width =fill_parent
android:layout_height =fill_parent
android:numColumns =auto_fit
android:verticalSpacing =10dp
android:horizontalSpacing =10dp
android:stretchMode =columnWidth
android:gravity =center
android:listSelector =@ drawable / list_selector
android: scrollbars =none/>
I am trying to highlight a selected item on a gridview (dinamically populated with an adapter), but it is not working.
I did research and i even tried to copy exactly the selector of other people and even the way that they put it on the gridview but i am not being able to put it working.
It just doesn't do anything. The background of each item is white (like i wanted), but when i press it (it it is on top of a textview or a imageview (part of the gridview item) it doesn't do anything. If i press out of the imageView or textview, it will do what i want.
EDIT : I have listeners for the images and the textviews, so it might be interfering with this selector ? How could i solve this problem?
Here is the code of the activity where i create the gridview :
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.highway_appselection_activity);
gridView= (GridView) findViewById(R.id.HighwayGridView);
gridView.setSelector(new ColorDrawable(Color.BLACK));
Here is the xml of each item of this gridview : (where i define the background as the selector)
<?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:id="@+id/HighwayGridViewItem"
android:orientation="vertical"
android:background="@drawable/highway_appselection_selector"
android:padding="5dp">
<cm.aptoide.lite.HighwayCustomImageView
android:layout_width="72dp"
android:layout_height="72dp"
android:id="@+id/highwayGridViewItemIcon"
android:background="#FFFFFF"
android:layout_gravity="center"
android:scaleType="centerCrop"
android:padding="5dp"
android:clickable="true"/>
<!-- does this need to be my custom image view anymore? CHeck on that-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/highwayGridViewItemName"
android:textColor="#000000"
android:text="texto de teste"
android:textSize="10sp"
android:focusable="true"
android:ellipsize="marquee"
android:marqueeRepeatLimit="marquee_forever"
android:layout_weight="2"
android:textStyle="bold"
android:paddingRight="5dp"
android:layout_marginLeft="5dp"
android:clickable="true"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/info_icon"
android:padding="5dp"
android:clickable="true"
android:id="@+id/highwayGridViewItemInfoButton"/>
And here is my selector :
<selector xmlns:android="http://schemas.android.com/apk/res/android" android:exitFadeDuration="@android:integer/config_mediumAnimTime">
<item android:state_enabled="true" android:state_pressed="true" android:drawable="@color/green_main_color" />
<item android:state_enabled="true" android:state_focused="true" android:drawable="@color/green_main_color" />
<item android:state_enabled="true" android:state_selected="true" android:drawable="@color/green_main_color" />
<item android:drawable="@android:color/white" />
I might be missing something, I am new to Android, sorry if there is any rookie mistake.
Create file selector.xml
as:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/green_main_color" android:state_pressed="true"/>
<item android:drawable="@color/green_main_color" android:state_selected="true"/>
<item android:drawable="@color/white"/>
</selector>
Put your selector file in drawable folder as drawable/selector.xml
and then in your gridView:
<GridView
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="columnWidth"
android:gravity="center"
android:listSelector="@drawable/list_selector"
android:scrollbars="none" />
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