I am getting ArrayIndexOutOfBoundsException when i try to delete a row from a listView in my android app. Following is the code:
String[] items;
FileInputStream fis;
String FILENAME = "rundata";
String collected;
Context context = this;
int itemPosition;
FileOutputStream fos;
ArrayAdapter<String> adapter;
private static LayoutInflater inflater=null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
protected void onResume(){
super.onResume();
inflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
collected = null;
try {
fis = openFileInput(FILENAME);
byte[] dataArray = new byte[fis.available()];
while(fis.read(dataArray) != -1){
System.out.println("in while");
collected = new String(dataArray);
if(collected.equals("")){
System.out.println("break");
break;
}else{
System.out.println("continue");
}
}
fis.close();
if(collected.contains("NEXTLINE")){
System.out.println("in if next line");
items = collected.split("NEXTLINE");
}else{
System.out.println("in else next line");
items = new String[0];
}
System.out.println("items.length: "+items.length);
adapter = new ArrayAdapter<String>(this, R.layout.historyrow, items){
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (null == vi) {
vi = inflater.inflate(R.layout.historyrow, null);
} else {
vi = convertView;
}
TextView text=(TextView)vi.findViewById(R.id.historyTxtTitle);
JSONObject jObject;
try {
jObject = new JSONObject(items[position]);
if(jObject.getString("activityMode").equals("mode1")){
text.setText("Mode 1");
}else if(jObject.getString("activityMode").equals("mode2")){
text.setText("Mode 2");
}else if(jObject.getString("activityMode").equals("mode3")){
text.setText("Mode 3");
}else if(jObject.getString("activityMode").equals("mode4")){
text.setText("Mode 4");
}else{
text.setText("ERROR");
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("++++++e: "+e);
}
return vi;
}
};
setListAdapter(adapter);
and i get following error when i try to delete a row:
06-28 11:15:10.593: E/AndroidRuntime(26639): FATAL EXCEPTION: main
06-28 11:15:10.593: E/AndroidRuntime(26639): java.lang.ArrayIndexOutOfBoundsException
06-28 11:15:10.593: E/AndroidRuntime(26639): at com.eplinovo.runnoandroid.HistoryViewActivity$1.getView(HistoryViewActivity.java:88)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.AbsListView.obtainView(AbsListView.java:1443)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.ListView.makeAndAddView(ListView.java:1793)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.ListView.fillDown(ListView.java:718)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.ListView.fillSpecific(ListView.java:1350)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.ListView.layoutChildren(ListView.java:1624)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.AbsListView.onLayout(AbsListView.java:1294)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1254)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1130)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.LinearLayout.onLayout(LinearLayout.java:1047)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1254)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1130)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.LinearLayout.onLayout(LinearLayout.java:1047)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.View.layout(View.java:7175)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.ViewRoot.performTraversals(ViewRoot.java:1146)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.view.ViewRoot.handleMessage(ViewRoot.java:1865)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.os.Handler.dispatchMessage(Handler.java:99)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.os.Looper.loop(Looper.java:130)
06-28 11:15:10.593: E/AndroidRuntime(26639): at android.app.ActivityThread.main(ActivityThread.java:3687)
06-28 11:15:10.593: E/AndroidRuntime(26639): at java.lang.reflect.Method.invokeNative(Native Method)
06-28 11:15:10.593: E/AndroidRuntime(26639): at java.lang.reflect.Method.invoke(Method.java:507)
06-28 11:15:10.593: E/AndroidRuntime(26639): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
06-28 11:15:10.593: E/AndroidRuntime(26639): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
06-28 11:15:10.593: E/AndroidRuntime(26639): at dalvik.system.NativeStart.main(Native Method)
Can anybody please help me with that? Thanks in advance.
Because list adapter has a method called
getCount– adapter assumes that items count is constant value, that returned by this method. After deleting a row you should callnotifyDataSetChangedmethod of your adapter, so it’ll recalculate count of elements of your array.