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up vote -1 down vote favorite

i have got warning like in topic, i already googled that however adding description not fix my problem, R.java is not generating, i was trying to clean and rebuild and nothing... whats wrong is with my .xml file

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="10dp" >

<ListView
    android:id="@+id/listViewPlayer"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_above="@+id/buttonPrev"
    android:layout_alignParentTop="true"
    android:layout_alignLeft="@+id/seekBar1"
    android:layout_centerHorizontal="true" />

<SeekBar
   android:id="@+id/seekBar1"
   android:layout_width="200dp"
   android:layout_height="wrap_content"
   android:layout_alignParentBottom="true"
   android:layout_marginBottom="16dp" />

<ImageButton
    android:id="@+id/buttonPrev"
    android:layout_width="60dp"
    android:layout_height="60dp"
    android:layout_above="@+id/seekBar1"
    android:layout_alignLeft="@+id/seekBar1"
    android:src="@drawable/rewind" />

<ImageButton
    android:id="@+id/buttonPlay"
    android:layout_width="60dp"
    android:layout_height="60dp"
    android:layout_above="@+id/seekBar1"
    android:layout_toRightOf="@+id/buttonPrev"
    android:src="@drawable/play" />

<ImageButton
    android:id="@+id/buttonForw"
    android:layout_width="60dp"
    android:layout_height="60dp"
    android:layout_above="@+id/seekBar1"
    android:layout_toRightOf="@+id/buttonPlay"
    android:src="@drawable/fast_forward" />

<ImageButton
    android:id="@+id/buttonShuffle"
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:layout_above="@+id/seekBarVolume"
    android:layout_alignLeft="@+id/seekBarVolume"
    android:src="@drawable/shuffle" />

 <ImageButton
    android:id="@+id/buttonRepeat"
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:layout_above="@+id/seekBarVolume"
    android:layout_alignRight="@+id/seekBarVolume"
    android:src="@drawable/repeat" />

<SeekBar
    android:id="@+id/seekBarVolume"
    android:layout_width="100dp"
    android:layout_height="wrap_content"
    android:layout_toRightOf="@+id/seekBar1"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="16dp" />


</RelativeLayout>
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1 Answer

up vote 0 down vote accepted

R.java is not generating because of some error. It might be in the file also. one thing that I can suggest is that you need to use @+id/.. only when you are defining it first time. So for example you have already defined Seekbar in ListView liek:

<ListView
    ...
    android:layout_above="@+id/buttonPrev"
    >

So now you don't need to use + again for same ID. For rest of the place you can remove the + in front of ID's 

<SeekBar
   android:id="@id/seekBar1"

Similar patter follows for other ID's.

share|improve this answer
    
problem disapears when i replace src with background and ImageButton with Button but i rly need ImageButtons –  fa1thly Aug 18 '13 at 12:13
    
what happens if you just change src with background without changing it to Button? –  Shobhit Puri Aug 18 '13 at 14:16
    
i fallowed your advices, i have deleted all not necessary +, clean project, restart eclipce and it works now, still dont know what was a reason, maybe that + –  fa1thly Aug 19 '13 at 12:17
    
Maybe that was the case or not. If you read the documentation on ID, it says ` The plus-symbol (+) means that this is a new resource name that must be created and added to our resources (in the R.java file). There are a number of other ID resources that are offered by the Android framework. When referencing an Android resource ID, you do not need the plus-symbol, but must add the android package namespace, like so`. –  Shobhit Puri Aug 19 '13 at 14:51
    
So It might be that R.java was not generated properly as each time + sign tell it to ad a new resource to R.java. But, you were just trying to reference the existing View instead of adding a new one. It might have been an issue. Nevertheless it works now. That's what's important ;) –  Shobhit Puri Aug 19 '13 at 14:52
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