Android custom view causing force close

Question

I have a custom view in src > myproject.test > HomeView

In my main layout xml I have the following:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/home_root"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <myproject.test.HomeView
        android:id="@+id/home_view"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        >
    </myproject.test.HomeView>

</LinearLayout>

In the HomeActivity I have a call like this in the onCreate method.

setContentView(R.layout.main);
HomeView mHomeView = (HomeView) this.findViewById(R.id.home_view);

The app force closed when the setContentView method is called. It seems that my main xml is not correct.

Any ideas?

Call `adb logcat V` from a console. That should be your very first instinct whenever you get a force close. — EboMike, Oct 21 '10 at 22:10
`home_root` is the name of your layout, Why `R.layour.main`? — frayser, Oct 21 '10 at 22:19
@Falmarri I have loaded the HomeView on the main activity by using setContentView and the contents of HomeView loaded without a problem. — skyfoot, Oct 22 '10 at 09:06
@Frayser main.xml is the name of my layout and Android interprets this as R.layout.main. all the samples on the Android dev site use this. — skyfoot, Oct 22 '10 at 09:08

GaryD · Accepted Answer · 2010-10-21T22:29:46.033

2

Do you mean its not getting to the

HomeView mHomeView = (HomeView) this.findViewById(R.id.home_view);

and crashing on the line before it?

Check if your constructor is

HomeView(final Context context, final AttributeSet attrs){
     super(context, attrs);

and not

HomeView(final Context context){
     super(context);

you need the AttributeSet

edited Oct 21 '10 at 22:29

answered Oct 21 '10 at 22:24

GaryD

128
1
6

yes, if I comment out the HomeView setup line it still force closes – skyfoot Oct 22 '10 at 07:48
How do you initialize your home view? could you show some code, and the output from logcat – GaryD Oct 22 '10 at 08:08
Just out of intrest, is your layout also called main.xml ? and is it in the layout dir? – GaryD Oct 22 '10 at 13:51
it was the constructor. thanx – skyfoot Oct 22 '10 at 21:47

score 0 · Answer 2 · answered Oct 21 '10 at 22:28

0

Check constructors that your HomeView implements:

 public HomeView(Context context, AttributeSet atts) {
     super(context, atts); 
 }

answered Oct 21 '10 at 22:28

Asahi

13,378
12
67
87

score 0 · Answer 3 · answered Oct 21 '10 at 22:29

<LinearLayout xmlns:android = 
      http://schemas.android.com/apk/res/android"
    android:id="@+id/home_root"
    android:orientation="vertical"

None of my layouts have @+id. Maybe you should set the view to home_root. Check with you R.java for the name of the layout, or try

setContentView(R.layout.home_root);

Android custom view causing force close

3 Answers3