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POcustom LinearLayout with custom View elements shows nothing
 

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  1. POcustom LinearLayout with custom View elements shows nothing
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    <p>I have a class <code>CustomView</code> which extends <code>LinearLayout</code>. I have another class <code>CustomElement</code> which also extends <code>LinearLayout</code>. When i try to use my class in XML nothing shows up.</p> <p>This is my class CustomView:</p> <pre><code>private static int NUMBER_OF_ELEMENTS = 4; public CustomView(final Context context, AttributeSet attrs) { super(context, attrs); init(context); } private void init(Context context) { // get size for each element int width = getWidth() / NUMBER_OF_ELEMENTS; int height = getHeight() / NUMBER_OF_ELEMENTS; for (int i = 0; i &lt; NUMBER_OF_ELEMENTS; i++) { CustomElement element = new CustomElement(context); addView(element, width, height); } } </code></pre> <p>This is my class CustomElement:</p> <pre><code>public CustomElement(final Context context) { super(context); m_context = context; init(context); } private void init(Context context) { LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); inflater.inflate(R.layout.custom_elem, this); } </code></pre> <p>When i now try to add my <code>CustomView</code> in XML it doesn't show anything. Here is my XML Code:</p> <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout_mainleft" android:layout_width="match_parent" android:layout_height="match_parent" &gt; &lt;com.package.views.CustomView android:id="@+id/layout_elements" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>Am I missing something? Any help is appreciated!</p>
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    1. USX.X_Mass_Developer
    1. USX.X_Mass_Developer
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    1. COFirst of all, `CustomElement` can't extend `View` in your current code. Second, where you add the `CustomElement` use the constructor that only takes a `Context`. Third, how does the entire layout where you use `CustomView` looks like?
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      1. POcustom LinearLayout with custom View elements shows nothing
      1. USLuksprog
    2. COreading the previous comment, apparently you have changed your code so your views don't extend View. But your CustomView and CustomElement must extend some View or ViewGroup, or they will not be displayed. You do call super, so you're assuming there is a super class. And, usually there's three different constructors.
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      1. POcustom LinearLayout with custom View elements shows nothing
      1. USChristine
    3. CO@Luksprog First you are right! I was confused myself after changing it. It extends LinearLayout. If I change that, I cannot use the inflater.inflate anymore. What to use instead? Second, I changed that with the constructor. Third, I edited the XML to the entire layout.
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      1. USX.X_Mass_Developer
 

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