How to use Declare-styleable

How to use Declare-styleable

2. In the create XML to objectname/res/values/named Attrs.xml
4. Edit file contents as (example)
   <?xml version= "1.0" encoding= "Utf-8"?>
   <resources>
   <declare-styleable name= "Test1" >
   <attr name= "TEST" format = "float" ></attr>
   </declare-styleable>
   </resources>
6. in the definition file in the Layout folder, refer to at Use
       <org.xiaoyunduo.mytext
            & nbsp xmlns:app= "Http://schemas.android.com/apk/res/org.xiaoyunduo"
           android:id= "@+id/add"
            android:layout_width= "wrap_content"
           android:layout_height= " Wrap_content "
           app:test=" 100 "
           android:text= "@string/log_text_box_1_add_text"/>
   // I remember I didn't need to define xmlns. Now you have to define the form that you can use android:test directly, and you now have to define xmlns.
8. Get the values in the layout file in code (preferably called in the constructor method)
   TypedArray a = Context.obtainstyledattributes (Attrs, r.styleable.test1);//typedarray is an array container
   float textSize = a.getfloat (r.styleable.test1_test, 30);//Prevent no definition in XML file, add default value 30
10. Initializes the obtained value to the control
    This does not write in the construction method of the value has been obtained, the back of the love how to use it.

Declare-styleable Definition Description:

1. Reference: Refer to a resource ID.

(1) Attribute definition:

<declare-styleable name = "Names" >

<attr name = "Background" format = "Reference"/>

</declare-styleable>

(2) attribute use:

<imageview

Android:layout_width = "42dip"
Android:layout_height = "42dip"
Android:background = "@drawable/Picture ID"

/>

2. Color: Colour value.

(1) Attribute definition:

<declare-styleable name = "Names" >

<attr name = "TextColor" format = "Color"/>

</declare-styleable>

(2) attribute use:

<textview

Android:layout_width = "42dip"
Android:layout_height = "42dip"
Android:textcolor = "#00FF00"

/>

3. Boolean: Boolean value.

(1) Attribute definition:

<declare-styleable name = "Names" >

<attr name = "focusable" format = "Boolean"/>

</declare-styleable>

(2) attribute use:

<button

Android:layout_width = "42dip"
Android:layout_height = "42dip"

Android:focusable = "true"

/>

4. Dimension: Dimension value.

(1) Attribute definition:

<declare-styleable name = "Names" >

<attr name = "layout_width" format = "Dimension"/>

</declare-styleable>

(2) attribute use:

<button

Android:layout_width = "42dip"
Android:layout_height = "42dip"

/>

5. Float: floating-point value.

(1) Attribute definition:

<declare-styleable name = "Alphaanimation" >

<attr name = "Fromalpha" format = "float"/>
<attr name = "Toalpha" format = "float"/>

</declare-styleable>

(2) attribute use:

<alpha
Android:fromalpha = "1.0"
Android:toalpha = "0.7"

/>

6. Integer: Integer value.

(1) Attribute definition:

<declare-styleable name = "Animatedrotatedrawable" >

<attr name = "visible"/>
<attr name = "frameduration" format= "integer"/>
<attr name = "Framescount" format= "integer"/>
<attr name = "Pivotx"/>
<attr name = "Pivoty"/>
<attr name = "Drawable"/>

</declare-styleable>

(2) attribute use:

<animated-rotate

xmlns:android = "Http://schemas.android.com/apk/res/android"
android:drawable = "@drawable/Picture ID"
Android:pivotx = "50%"
Android:pivoty = "50%"
Android:framescount = "12"
android:frameduration = "100"

/>

7. String: Strings.

(1) Attribute definition:

<declare-styleable name = "Mapview" >
<attr name = "ApiKey" format = "string"/>
</declare-styleable>

(2) attribute use:

<com.google.android.maps.mapview
Android:layout_width = "Fill_parent"
Android:layout_height = "Fill_parent"
Android:apikey = "0jokq80od1jl9c6haja99ugxcris2cgjko_bc_g"

/>

8. Fraction: percentage.

(1) Attribute definition:

<declare-styleable name= "Rotatedrawable" >
<attr name = "visible"/>
<attr name = "fromdegrees" format = "float"/>
<attr name = "todegrees" format = "float"/>
<attr name = "Pivotx" format = "fraction"/>
<attr name = "Pivoty" format = "fraction"/>
<attr name = "Drawable"/>
</declare-styleable>

(2) attribute use:

<rotate

xmlns:android = "Http://schemas.android.com/apk/res/android"
Android:interpolator = "@anim/animation ID"

Android:fromdegrees = "0"
Android:todegrees = "360"

Android:pivotx = "200%"

Android:pivoty = "300%"
android:duration = "5000"

Android:repeatmode = "Restart"

Android:repeatcount = "Infinite"

/>

9. Enum: enumeration value.

(1) Attribute definition:

<declare-styleable name= "Name" >
<attr name= "Orientation" >
<enum name= "Horizontal" value= "0"/>
<enum name= "Vertical" value= "1"/>
</attr>

</declare-styleable>

(2) attribute use:

<linearlayout

xmlns:android = "Http://schemas.android.com/apk/res/android"
Android:orientation = "vertical"
Android:layout_width = "Fill_parent"
Android:layout_height = "Fill_parent"
>
</LinearLayout>

Flag: Bit or operation.

(1) Attribute definition:

<declare-styleable name= "Name" >
<attr name= "Windowsoftinputmode" >
<flag name = "Stateunspecified" value = "0"/>
<flag name = "stateunchanged" value = "1"/>
<flag name = "Statehidden" value = "2"/>
<flag name = "Statealwayshidden" value = "3"/>
<flag name = "Statevisible" value = "4"/>
<flag name = "Statealwaysvisible" value = "5"/>
<flag name = "Adjustunspecified" value = "0x00"/>
<flag name = "Adjustresize" value = "0x10"/>
<flag name = "Adjustpan" value = "0x20"/>
<flag name = "adjustnothing" value = "0x30"/>
</attr>

</declare-styleable>

(2) attribute use:

<activity

Android:name = ". Styleandthemeactivity "
Android:label = "@string/app_name"
Android:windowsoftinputmode = "Stateunspecified |　stateunchanged | Statehidden ">
<intent-filter>
<action android:name = "Android.intent.action.MAIN"/>
<category android:name = "Android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>

Attention:

Multiple types of values can be specified when the property is defined.

(1) Attribute definition:

<declare-styleable name = "Names" >

<attr name = "Background" format = "Reference|color"/>

</declare-styleable>

(2) attribute use:

<imageview

Android:layout_width = "42dip"
Android:layout_height = "42dip"
Android:background = "@drawable/Picture id| #00FF00"

/>

Define namespaces

You can also customize the namespace when you customize the extension, but I don't feel right when I'm imitating the demo. The properties in the namespace cannot be alt+/by a hint, but the demo can.

The namespace definition syntax is as follows: (because I did not complete the Drag_layout.xml code in this post)
<relativelayout xmlns:android= "Http://schemas.android.com/apk/res/android"
xmlns:dot= "Http://schemas.android.com/apk/res/com.example.android.apis"
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:orientation= "Vertical"
>

How to use Declare-styleable