[英]Create a “ Pressed State” for a relative layout
I have build this Dashboard(See image Attached) 我已经构建了该仪表板(请参见附件)
What I am trying to do is create a "Press State" for the buttons.A colour change would work fine for me. 我想做的是为按钮创建一个“ Press State”(按下状态)。颜色更改对我来说很好。
The dashboard buttons are made of 5 Relative layouts where each one holds two image views and two textviews. 仪表板按钮由5个相对布局组成,每个布局包含两个图像视图和两个文本视图。
The code is listed below just for one button in this case "Mobile Apps" : 下面仅针对一个按钮列出了该代码,在这种情况下为“ Mobile Apps”:
<RelativeLayout
android:id="@+id/appsHolder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="@drawable/gradient_background"
android:padding="5dp" >
<!-- ListRow Left sied Thumbnail image -->
<LinearLayout
android:id="@+id/thumbnail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginRight="5dip"
android:padding="3dip" >
<ImageView
android:id="@+id/list_image"
android:layout_width="150dip"
android:layout_height="150dip"
android:src="@drawable/ic_apps_dashboard" />
</LinearLayout>
<!-- Title Of Song -->
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/thumbnail"
android:layout_toRightOf="@+id/thumbnail"
android:text="Mobile Apps"
android:textColor="#000000"
android:textSize="30dip"
android:textStyle="bold"
android:typeface="sans" />
<!-- Artist Name -->
<TextView
android:id="@+id/subtitle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/title"
android:layout_marginTop="1dip"
android:layout_toRightOf="@+id/thumbnail"
android:text="Preview the Viessmann apps..."
android:textColor="#000000"
android:textSize="30dip" />
<!-- Rightend Duration -->
<!-- Rightend Arrow -->
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@drawable/ic_arrow_dashboard" />
</RelativeLayout>
ANY GUIDANCE WILL BE APPRECIATED! 任何指导将被认可!
You have to write your own selector: 您必须编写自己的选择器:
http://developer.android.com/guide/topics/resources/color-list-resource.html http://developer.android.com/guide/topics/resources/color-list-resource.html
Create a xml file in your res/drawable/ folder and apply it as background to your button: 在res / drawable /文件夹中创建一个xml文件,并将其作为背景应用于按钮:
my_background_selector.xml: my_background_selector.xml:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/background_gradient_pressed" />
<item android:state_focused="true" android:drawable="@drawable/background_gradient_pressed" />
<item android:state_selected="true" android:drawable="@drawable/background_gradient_pressed" />
<item android:drawable="@drawable/background_gradient" />
</selector>
Then simply apply the selector as background on your layout 然后只需将选择器作为背景应用于布局
<RelativeLayout
android:id="@+id/appsHolder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="@drawable/my_background_selector"
android:padding="5dp"
...
</RelativeLayout>
If you want to work with colors, you can also do something like this: 如果要使用颜色,还可以执行以下操作:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape>
<solid android:color="@color/pressed_color" />
</shape>
</item>
<item>
<shape>
<solid android:color="#B8B8B8" />
</shape>
</item>
</selector>
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