Thread: Installed Android program which I created bombs out

Hi.

I'm taking a chance to post here, and I really hope someone would be able to assist me

It is my first android app.

I have created a very small android app. Basically it consists of a listview with two buttons:
The listview shows our courses. Once clicked, it shows the contents of each course
One button allows me to download a brochure
the other button opens up a form where the user can enter his / her details in order for us to be able to contact him / her

Nothing complicated.

Now I have debugged this app over and over to ensure everything will work fine.
On my AVD ( Samsung Galaxy SII ) everything works smoothly

So, I exported the release build with its signed key, and made it available for download from my website - not the google play store, as I want to gradually release it onto different platforms depending on the amount of downloads I get.

Right, so I download it and installed it on my phone ( Galaxy S II ) all 284 KB of it.
When I attempt to run it, my phone says that the app has stopped working and I must Force Close it.

What can it be?

I know this question seems vague, but perhaps there is a step I have missed.

Any guidance will be welcomed.

--- Update ---

OK, I managed to install this program onto a Samsung Galaxy S4. It works without any problems.

So, I did some research on the internet and I was told that I should make my minSdkVersion and targetSdkVersion the same. I made them both 9 ( for Gingerbread ), and made the TargetApi :

@TargetApi(Build.VERSION_CODES.GINGERBREAD)

Still it doesn't work on my Samsung Galaxy S2

There is hope, but I do not know how to make this app more compatible with earlier Samsung ( android ) versions

Any advice?

Thanks for taking the time to answer my question.

As mentioned in my first post :

"When I attempt to run it, my phone says that the app has stopped working and I must Force Close it."

My device is running Gingerbread - Android version 2.3.4

I did target Gingerbread in my code.

This app works perfectly on Samsung Galaxy S 4

So I'm thinking that my target platform is wrong? But I do not know how to fix it

Originally Posted by aussiemcgr

Have you tried running it in debug mode on your device (while your device is connected to your computer)? At the very least, you would be able to read the logcat output if you did that.

How do I do that ? Sorry, I'm stupid

I'm making use of the Samsung Galaxy SII AVD, and that has reported no errors.

Hi. I apologise for not mentioning my IDE earlier. I.am indeed using Eclipse. I will try your suggestion tomorrow morning. I did not know I could do that! I could have saved you all and myself a lot of trouble .

Thanks for all your kind help thus far

Hannes

log.txtOK I give UP!

After wasting a whole day finding the freking OEMs for my phone and installing it, and setting up my Devices to run on my phone, I just get a whole lot of jargon in LogCat

I feel completely out of my league here, cannot remember when last I felt so darn stupid.

For those interested this is what my LogCat gives me - on the attachment.

None of which makes any sense.

I exited Eclipse after half an hour of waiting for my program to finally grace me with its presence on my phone, but it never even started on my phone.

I don't know if I should go home and drink, or go home and cry

thanks for all your help. Yes. my namespace is com.ver.ncc
Well by the looks of it line 103 is:

Setcontentview(r.layout.activity_fullscreen_activi ty_ncc);

The asing is not right because i am at home and typing on my phone. if that's not the line it is defonitely somewhere in oncreate. i'll send the full method tomorrow.

I know it should be something small. out of my experienc.net it usually is.

Thanks once again and thanks for your patience

hannes

Always include the full text of the error message with your code and question.

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ver.ncc/com.ver.ncc.FullscreenActivityNCC}: android.view.InflateException: Binary XML file line #38: Error inflating class android.widget.LinearLayout
What does the xml look like?

Wow, thanks for all your efforts guys.

I am attaching my project here - all the layouts and classes are in there, perhaps it could help identifying the error.

I just have warnings in my project, as far as I know. the compiler didn't pinpoint an exact error

hannes

Do you think it is wise to redo my design completely, in order to hopefully eradicate the error?

Through Lint, I managed to fix some errors. Still no light I did replace my earlier attachment with the most current one. I really do not know what else to do, except for giving up - which I don't want to.

Can any one please have a look and see if you could spot the error? I'm not asking to be spoonfed, but I am really getting nowhere

Hannes

Thanks again for your help, I understand. Just got frustrated.

Seems I'm getting somewhere..... I think

An error I get is android.widget.LinearLayout cannot be cast to android.widget.ListView

I am making use of a listview on my main file. This is the main file's content :

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/fullscreen_content_controls"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFFFFF"
    tools:context=".FullscreenActivityNCC" >
 
    <!--
         The primary full-screen view. This can be replaced with whatever view
         is needed to present your content, e.g. VideoView, SurfaceView,
         TextureView, etc.
 
    -->
 
 
    <!--
         This FrameLayout insets its children based on system windows using
         android:fitsSystemWindows.
 
    -->
 
    <Button
        android:id="@+id/Contact"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|left"
        android:text="@string/Contact"
        android:textColor="#000000" />
 
    <Button
        android:id="@+id/Download"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|right"
        android:text="@string/Download"
        android:textColor="#000000" />
 
    <FrameLayout
        android:id="@+id/fullscreen_content"
        android:layout_width="match_parent"
        android:layout_height="407dp" >
 
        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="52dp"
            android:layout_gravity="top"
            android:gravity="center_vertical|center_horizontal"
            android:text="@string/WelcomeBrowse"
            android:textColor="#000000" />
 
        <TextView
            android:id="@+id/textView2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom"
            android:gravity="center_vertical|center_horizontal"
            android:text="@string/ContactNCC"
            android:textAlignment="center"
            android:textColor="#FF0000" />
 
        <ImageView
            android:id="@+id/Image2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/downloadprogress"
             />
 
        <include
            android:id="@+id/list_view"
            android:layout_width="280dp"
            android:layout_height="296dp"
            android:layout_gravity="center_vertical|center_horizontal"
            layout="@layout/literacy" />
 
    </FrameLayout>
 
</FrameLayout>

This is the content of the Literacy.xml file :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
 
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|center_horizontal"
        android:text="NCC Vereeniging Courses"
        android:textColor="#bb0000"
        android:textSize="16sp" />
 
    <ListView
        android:id="@+id/srListView"
        android:layout_width="fill_parent"
        android:layout_height="0dip"
        android:layout_weight="0.24" />
 
 
 
</LinearLayout>

And this is the content of the list_item.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:background="#FFFFFF"
    android:orientation="vertical" >
 
    <!-- Single ListItem -->
 
    <!-- Product Name -->
    <TextView android:id="@+id/product_name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:padding="10dip"
        android:textSize="16sp"
        android:textStyle="bold"
        android:textColor="#000000"/>   
 
</LinearLayout>

Finally, this is the content of the lit_custom_row_view.xml file :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:paddingBottom="10dip"
    android:paddingLeft="10dip"
    android:paddingTop="10dip" >
 
    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#C20000"
        android:textSize="14sp"
        android:textStyle="bold" />
 
    <TextView
        android:id="@+id/description"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
 
    <TextView
        android:id="@+id/price"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
 
</LinearLayout>

Where I get the abovementioned error is presumably on this code segment in my FullscreenActivityNCC.java file :

       // Listview Data
        String products[] = {"Computer Literacy", "Office Assistant", "Pastel", "Technical", "Graphic Design",
                                "IT", "Web Design", "Programming", "Business Administration"};
 
 
      final  View lv = (View)findViewById(R.id.list_view);
 
       // lv = (ListView) findViewById(R.id.list_view);
 
        TextView tv1 = (TextView)((ViewGroup) lv).getChildAt(0);
        tv1.setTextColor(Color.BLACK);
        TextView tv2 = (TextView)((ViewGroup) lv).getChildAt(1);
        tv2.setTextColor(Color.BLACK);
        TextView tv3 = (TextView)((ViewGroup) lv).getChildAt(2);
        tv3.setTextColor(Color.BLACK);
        TextView tv4 = (TextView)((ViewGroup) lv).getChildAt(3);
        tv4.setTextColor(Color.BLACK);
        TextView tv5 = (TextView)((ViewGroup) lv).getChildAt(4);
        tv5.setTextColor(Color.BLACK);
        TextView tv6 = (TextView)((ViewGroup) lv).getChildAt(5);
        tv6.setTextColor(Color.BLACK);
        TextView tv7 = (TextView)((ViewGroup) lv).getChildAt(6);
        tv7.setTextColor(Color.BLACK);
        TextView tv8 = (TextView)((ViewGroup) lv).getChildAt(7);
        tv8.setTextColor(Color.BLACK);
        TextView tv9 = (TextView)((ViewGroup) lv).getChildAt(8);
        tv9.setTextColor(Color.BLACK);
 
        // Adding items to listview
        adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
        ((ListView) lv).setAdapter(adapter);       
 
        ((AbsListView) lv).setSelector(R.drawable.listitem_background);
 
        ((AdapterView<ListAdapter>) lv).setOnItemClickListener(new AdapterView.OnItemClickListener() {
 
            @SuppressLint("NewApi")
			@Override
            public void onItemClick(AdapterView<?> parent, final View view,
                int position, long id) {
              final String item = (String) parent.getItemAtPosition(position);
              lv.animate().setDuration(2000).alpha(0);
 
 
 
              if (item == "Computer Literacy") {
 
            	  Intent intent = new Intent(FullscreenActivityNCC.this,Literacy.class);
 
    			//start the second Activity
    			startActivity(intent);           	             	  
 
              }
 
              else if (item == "Office Assistant") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,OfficeAssistant.class);
 
    			startActivity(intent); 
              }
 
              else if (item == "Pastel") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,Pastel.class);
 
    			startActivity(intent); 
              }
 
              else if (item == "Technical") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,Technical.class);
 
    			startActivity(intent); 
              }
 
              else if (item == "Graphic Design") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,GraphicDesign.class);
 
    			startActivity(intent); 
              }
 
              else if (item == "IT") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,IT.class);
 
    			startActivity(intent); 
              }              
 
              else if (item == "Web Design") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,WebDesign.class);
 
    			startActivity(intent); 
              }
 
              else if (item == "Programming") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,Programming.class);
 
    			startActivity(intent); 
              }
 
              else if (item == "Business Administration") {
            	 Intent intent = new Intent(FullscreenActivityNCC.this,BusinessAdmin.class);
 
    			startActivity(intent); 
              }            
 
 
            }
 
          });

I have casted the listview to ViewGroup now, but still the program just bombs out.

Any thoughts?

--- Update ---

OK, based on the above code I get the error : android.widget.ListView cannot be cats to android.widget.TextView

Thanks. Is there any other way to make a listview without any other "sub content"?

Hi!

I managed to get it working! with all your help, thanks!

I was casting my listview's items incorrectly, and fiddled with it, until it worked. Yay!

Hannes