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POForce Close in Landscape Mode, but not in Portrait
 

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    <p>I have an application which shows a list of items in runtime. When the user presses a <code>Button</code>, all selected items should be deleted (selection determined by <code>CheckBox</code>). In <em>portrait</em> mode everything works well, but when I switch to landscape mode <strong>when the number of rows are more than 3</strong>, pressing the delete button gets the <code>Force Close Exception</code> and I am unable to print the stack trace. <strong>When there are 3 or less rows it works perfectly!</strong> I've written the layout for both <code>layout</code> (portrait) and <code>layout-land</code> directories. Code and Layouts are as follows:</p> <p>Here is the handler for Delete Button:</p> <pre><code> Button DeleteGoods=(Button)findViewById(R.id.DeleteSelectedGoodsButton); DeleteGoods.setOnClickListener(new OnClickListener() { public void onClick(View v) { CheckBox cbx = (CheckBox)listView.findViewById(R.id.ChkOrder); int firstPosition = listView.getFirstVisiblePosition(); for (int i = firstPosition; i &lt; listView.getCount(); i++) { View v1 = listView.getChildAt(i); cbx = (CheckBox)v1.findViewById(R.id.ChkOrder); if(cbx.isChecked()) checkedItemPosition=i; } try { DeleteCheckedItem(checkedItemPosition); Toast.makeText(getApplicationContext(),"The selected order has been deleted successfully.", Toast.LENGTH_SHORT).show(); finish(); startActivity(getIntent()); } catch (Exception e) { Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show(); } } }); </code></pre> <p>Here is the layout in landscape mode:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#000000" &gt; &lt;Button android:id="@+id/DeleteSelectedGoodsButton" android:layout_width="150dp" android:layout_height="45dp" android:text="@string/DeleteSelectedGoods" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" /&gt; &lt;Button android:id="@+id/ConfirmDelete" android:layout_width="150dp" android:layout_height="45dp" android:text="@string/ConfirmDeleteButton" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" /&gt; &lt;Button android:id="@+id/CancelButton" android:layout_width="150dp" android:layout_height="45dp" android:text="@string/CancelButton" android:layout_alignParentTop="true" android:layout_alignParentRight="true" /&gt; &lt;TextView android:id="@+id/aa" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@id/CancelButton" /&gt; &lt;TextView android:id="@+id/GOODNAME_CELL" android:layout_width="180dp" android:layout_height="wrap_content" android:background="@drawable/border" android:textSize="18dp" android:text="Order" android:paddingLeft="5dp" android:layout_below="@id/aa" android:layout_alignParentLeft="true" /&gt; &lt;TextView android:id="@+id/GOODUNITPRICE_CELL" android:layout_width="180dp" android:layout_height="wrap_content" android:background="@drawable/border" android:textSize="18dp" android:text="Unit Price" android:paddingLeft="5dp" android:layout_below="@id/aa" android:layout_toRightOf="@id/GOODNAME_CELL" /&gt; &lt;TextView android:id="@+id/QUANTITYCELL" android:layout_width="120dp" android:layout_height="wrap_content" android:background="@drawable/border" android:textSize="18dp" android:text="Quantity" android:paddingLeft="5dp" android:layout_below="@id/aa" android:layout_toRightOf="@id/GOODUNITPRICE_CELL" /&gt; &lt;ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="wrap_content" style="@style/CodeFont" android:layout_alignParentLeft="true" android:layout_below="@id/GOODUNITPRICE_CELL" /&gt; &lt;TextView android:id="@+id/TotalPriceTextview" android:layout_width="600dp" android:layout_height="wrap_content" android:text="" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:background="@drawable/back" android:textColor="#FFFFFF" android:textSize="20dp" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>This is the exception I am getting:</p> <pre><code>02-19 10:07:11.398: E/AndroidRuntime(4335): FATAL EXCEPTION: main 02-19 10:07:11.398: E/AndroidRuntime(4335): java.lang.NullPointerException 02-19 10:07:11.398: E/AndroidRuntime(4335): at com.example.nfc.PrepopSqliteDbActivity$1.onClick(PrepopSqliteDbActivity.java:117) 02-19 10:07:11.398: E/AndroidRuntime(4335): at android.view.View.performClick(View.java:2552) 02-19 10:07:11.398: E/AndroidRuntime(4335): at android.view.View$PerformClick.run(View.java:9229) 02-19 10:07:11.398: E/AndroidRuntime(4335): at android.os.Handler.handleCallback(Handler.java:587) 02-19 10:07:11.398: E/AndroidRuntime(4335): at android.os.Handler.dispatchMessage(Handler.java:92) 02-19 10:07:11.398: E/AndroidRuntime(4335): at android.os.Looper.loop(Looper.java:138) 02-19 10:07:11.398: E/AndroidRuntime(4335): at android.app.ActivityThread.main(ActivityThread.java:3701) 02-19 10:07:11.398: E/AndroidRuntime(4335): at java.lang.reflect.Method.invokeNative(Native Method) 02-19 10:07:11.398: E/AndroidRuntime(4335): at java.lang.reflect.Method.invoke(Method.java:507) 02-19 10:07:11.398: E/AndroidRuntime(4335): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878) 02-19 10:07:11.398: E/AndroidRuntime(4335): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636) 02-19 10:07:11.398: E/AndroidRuntime(4335): at dalvik.system.NativeStart.main(Native Method) 02-19 10:07:11.408: W/ActivityManager(1768): Force finishing activity com.example.nfc/.PrepopSqliteDbActivity 02-19 10:07:11.909: W/ActivityManager(1768): Activity pause timeout for HistoryRecord{40b2ed78 com.example.nfc/.PrepopSqliteDbActivity} 02-19 10:07:16.353: I/InputDispatcher(1768): Application is not responding: Window{40a73e60 com.example.nfc/com.example.nfc.PrepopSqliteDbActivity paused=false}. 5004.7ms since event, 5004.4ms since wait started 02-19 10:07:16.353: I/InputDispatcher(1768): Dropping event because the pointer is not down. 02-19 10:07:16.353: I/InputDispatcher(1768): Dropping event because the pointer is not down. 02-19 10:07:16.353: I/WindowManager(1768): Input event dispatching timed out sending to com.example.nfc/com.example.nfc.PrepopSqliteDbActivity 02-19 10:07:16.353: I/ActivityManager(1768): Crashing app skipping ANR: ProcessRecord{40a1b188 4335:com.example.nfc/10003} keyDispatchingTimedOut 02-19 10:07:21.428: W/ActivityManager(1768): Launch timeout has expired, giving up wake lock! 02-19 10:07:21.908: W/ActivityManager(1768): Activity idle timeout for HistoryRecord{40a1b7d8 com.example.nfc/.Buy} 02-19 10:07:26.963: I/touchd(1518): 'ab8500_usb' is online 02-19 10:07:26.963: I/touchd(1518): handling_uevent: event is 1 </code></pre> <p><strong>Edit</strong></p> <p>This is line 117:</p> <pre><code>DeleteCheckedItem(checkedItemPosition); </code></pre> <p>and this is the method's body:</p> <pre><code>private void DeleteCheckedItem(int chkPosition) { String strName=goods.get(chkPosition).get(GOOD_NAME); String strPrice=goods.get(chkPosition).get(GOOD_UNITPRICE); String strQuantity=goods.get(chkPosition).get(QUANTITY); String whereClause = "GOOD_NAME = ? AND GOOD_UNITPRICE= ? AND QUANTITY= ?"; String[] whereArgs = {strName,strPrice,strQuantity}; database.delete(TABLE_NAME, whereClause, whereArgs); } </code></pre>
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    1. COPost the logcat trace too. Sometimes it could be as trivial as a character out of place. ;-)
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      1. USSiddharth Lele
    2. COI get this exception on my cellphone not on the emulator,because my database is empty and is being filled at runtime when I install it on my phone,and my cellphone does not work well unfortunately when I want to run the app in usb debugging mode!do you have any idea?Please give me a suggestion.Thanks
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    3. COPost the logcat trace. Lets see where the crash occurs.
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      1. USSiddharth Lele
 

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