android custom view attributes not working after switch to gradle

Question

so I recently migrated to gradle now my custom view attributes return null

my project looks like this

--custom_icon_view // library that holds the custom view wi

Answer 1

If anyone is here and nothing appears to be working. From what I can see, having an underscore in your namespace appears to work fine in the editor, but breaks unexpectedly as you build the app.

Answer 2

I think you should use

iconview:name="entypo_search"

instead of

iconview:icon_name="entypo_search"

Answer 3

If you are grabbing attributes in your custom view's init method with hard references to that specific namespace then changing to res-auto will break that. Instead, you will need to change those references also to res-auto. Or the preferred method is to just grab the typed interface. For example, in my project this:

textStyle = attrs.getAttributeIntValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "textStyle", 10);
shadowInner = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "shadowInner", true);
shadowOuter = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "shadowOuter", false);
allowResize = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "allowResize", true);

Became either this:

textStyle = attrs.getAttributeIntValue("http://schemas.android.com/apk/res-auto", "textStyle", 10);
shadowInner = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res-auto", "shadowInner", true);
shadowOuter = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res-auto", "shadowOuter", false);
allowResize = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res-auto", "allowResize", true);

but preferably this:

TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.BBcomButton);
textStyle = a.getInt(R.styleable.BBcomButton_textStyle, 10);
shadowInner = a.getBoolean(R.styleable.BBcomButton_shadowInner, true);
shadowOuter = a.getBoolean(R.styleable.BBcomButton_shadowOuter, false);
shadowInnerColor = a.getColor(R.styleable.BBcomButton_shadowInnerColor, 0xff000000);
shadowOuterColor = a.getColor(R.styleable.BBcomButton_shadowOuterColor, 0xff000000);
allowResize = a.getBoolean(R.styleable.BBcomButton_allowResize, true);

To make it work

Answer 4

Can't really see what's wrong in your project. Here is how I use custom view & attrs in mine :

In my library project :

attrs.xml :

<declare-styleable name="CustomFontSize">
    <attr name="typeFace" format="string" />
</declare-styleable>

in my custom class :

 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CustomFontSize);
 if (a == null) {
      return;
 }
 CharSequence s = a.getString(R.styleable.CustomFontSize_typeFace);
 if (s != null) {
    // do something
 }

In my Main Project here an example of one of my layout :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:custom="http://schemas.android.com/apk/res-auto"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:orientation="vertical"
              android:paddingLeft="@dimen/border_margin_pulltorefresh"
              android:paddingRight="@dimen/border_margin_pulltorefresh"
              android:paddingBottom="@dimen/divider_height">


    <com.custom.view.TextViewFont
            style="@style/DateStyle"
            android:id="@+id/news_date"
            android:shadowColor="@color/white"
            android:layout_gravity="center_vertical"
            android:gravity="center_vertical"
            custom:typeFace="@string/font_roboto_condensed_bold"/>

</LinearLayout>

Hope it will help ...

Edit :

in my build.gradle of my "main project"

dependencies {
    compile project(":MyLibraryProject")
}

And here the build.gradle of my library :

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.7.+'
    }
}
apply plugin: 'android-library'

repositories {
    mavenCentral()
}

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile 'com.android.support:support-v4:19.0.0'
    compile 'com.actionbarsherlock:actionbarsherlock:4.4.0@aar'
    compile project(':WebediaCore:dependencies:DataDroid')
    compile project(':WebediaCore:dependencies:ViewPagerIndicator')
    compile project(':WebediaCore:dependencies:ActionBar-PullToRefresh')
    compile project(':WebediaCore:dependencies:Android-Universal-Image-Loader')
}

android {
    compileSdkVersion 19
    buildToolsVersion '19'

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 19
    }
}

EDIT1 :

Try to use this namespace :

xmlns:custom="http://schemas.android.com/apk/res-auto"

and replace :

 iconview:icon_name="entypo_search"

by :

 custom:name="entypo_search"

Answer 5

You will get this error when you have statically declared your package name as a namespace (e.g xmlns:iconview="http://schemas.android.com/apk/lib/be.webelite.iconview" in your case) in a layout file and try building the project with Lint on. Check the Android Gradle Lint checks:

In Gradle projects, the actual package used in the final APK can vary; for example,you can add a .debug package suffix in one version and not the other. Therefore, you should not hardcode the application package in the resource; instead, use the special namespace http://schemas.android.com/apk/res-auto which will cause the tools to figure out the right namespace for the resource regardless of the actual package used during the build.