java - Android: changing an ImageView source makes my application close unexpectedly -

i signed in order ask help. i'm doing application displays image gallery. when click of images, must open image , show it.

there 2 activities: 'galeria' , 'imagen'. 'galeria' displays image gallery , 'imagen' displays image clicked. when image clicked, create second activity using intent seen in code below.

galeria.java code:

package com.ejemplo.galeria;  import android.os.bundle; import android.app.activity; import android.content.intent; import android.view.view;  public class galeria extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);     }      //called when image clicked (i use imagebuttons)     public void openimage(view view){         intent = new intent(this,imagen.class);         i.putextra("imagen", view.getid());         startactivity(i);     } }

the method 'openimage()' called when of imagebutton pushed (whatever button press, same method called). here 'main.xml' code:

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" tools:context=".galeria" >  <horizontalscrollview     android:layout_width="fill_parent"      android:layout_height="fill_parent"     android:id = "@+id/scrollview">     <linearlayout         android:id="@+id/layout"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:orientation="horizontal">         <imagebutton             android:id="@+id/imagen1"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/imagen1"></imagebutton>         <imagebutton             android:id="@+id/imagen2"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/imagen2"></imagebutton>         <imagebutton             android:id="@+id/imagen3"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/imagen3"></imagebutton>         <imagebutton             android:id="@+id/imagen4"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/imagen4"></imagebutton>         <imagebutton             android:id="@+id/imagen5"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/imagen5"></imagebutton>         <imagebutton             android:id="@+id/imagen6"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/petergriffin"></imagebutton>          <imagebutton             android:id="@+id/imagen7"             android:layout_width="100dp"             android:layout_height="100dp"             android:scaletype="fitxy"             android:onclick="openimage"             android:src="@drawable/gato"></imagebutton>     </linearlayout> </horizontalscrollview>  </relativelayout>

so, code of 'image' class:

package com.ejemplo.galeria;  import android.app.activity; import android.content.intent; import android.os.bundle; import android.widget.imageview;  public class imagen extends activity{      @override     protected void oncreate(bundle savedinstancestate){         super.oncreate(savedinstancestate);         intent = getintent();         int id = i.getintextra("imagen", -1);         if(id != -1){             imageview iv = (imageview) findviewbyid(r.id.imagev1);             iv.setimageresource(id); //error             setcontentview(r.layout.imagen);         }     } }

and xml code of 'imagen.xml' file:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical" >     <imageview         android:id="@+id/imagev1"         android:layout_height="wrap_content"         android:layout_width="wrap_content" ></imageview>  </linearlayout>

so, when modify source of imageview, applications closes unexpectedly, , have no idea why. i've been looking found nothing, wish can me, i'm getting mad.

thank you!

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ok found issue

i changed parameter in method 'setimageresource(id)' r.drawable.imagen1 , constructed switch case statement.

but kept closing unexpectedly!!!

so, in method 'oncreate()' of 'imagen' class, moved line 'setcontentview(r.layout.imagen)' end of method beginning.

problem solved :)

so here:

intent = new intent(this,imagen.class); i.putextra("imagen", view.getid()); startactivity(i);

you put view id in intent, after:

int id = i.getintextra("imagen", -1); if(id != -1){       imageview iv = (imageview) findviewbyid(r.id.imagev1);       iv.setimageresource(id); //error       setcontentview(r.layout.imagen); }

you try assign r.id image resource, wrong, because setimageresource expecting r.drawable.my_image. please follow javadoc.

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