I am adding an onClick listener to a text field in my adapter. I simply want the text in that field to me posted to my Text input box (edittext1). I am trying the code below however it s giving me a NullPoint Exception at the line pointng to edttext1. Help please
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
LayoutInflater inflater2 = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater2.inflate(R.layout.activity_discuss, parent, false);
if (row == null) {
LayoutInflater inflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(type==1 || type==3)
row = inflater.inflate(R.layout.listitem_discuss, parent, false);
else if(type==4 || type==5)
row = inflater.inflate(R.layout.listitem_users, parent, false);
else
row = inflater.inflate(R.layout.listitem_messages, parent, false);
}
//
final OneComment coment = getItem(position);
userComment = (TextView) row.findViewById(R.id.comment);
userImage = (ImageView) row.findViewById(R.id.place_img);
userName = (TextView) row.findViewById(R.id.place_name);
userOnlineImage = (ImageView) row.findViewById(R.id.pe_profile_pic);
commentDate = (TextView) row.findViewById(R.id.place_distance);
msgPic = (ImageView) row.findViewById(R.id.msgPic);
userComment.setText(coment.comment);
editText1 = (EditText) row.findViewById(R.id.cr_room_name);
userName.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
editText1.setText("testing");
Log.v("response","username selected");
// TODO Auto-generated method stub
}
});
I would actually prefer to make it a Longclick. Is there an difference in the setup.
Stack trace
11-16 12:46:29.100: E/AndroidRuntime(8047): FATAL EXCEPTION: main
11-16 12:46:29.100: E/AndroidRuntime(8047): java.lang.NullPointerException
11-16 12:46:29.100: E/AndroidRuntime(8047): at com.peekatucorp.peekatu.DiscussArrayAdapter$1.onClick(DiscussArrayAdapter.java:129)
11-16 12:46:29.100: E/AndroidRuntime(8047): at android.view.View.performClick(View.java:4240)
11-16 12:46:29.100: E/AndroidRuntime(8047): at android.view.View$PerformClick.run(View.java:17721)
11-16 12:46:29.100: E/AndroidRuntime(8047): at android.os.Handler.handleCallback(Handler.java:730)
11-16 12:46:29.100: E/AndroidRuntime(8047): at android.os.Handler.dispatchMessage(Handler.java:92)
11-16 12:46:29.100: E/AndroidRuntime(8047): at android.os.Looper.loop(Looper.java:137)
11-16 12:46:29.100: E/AndroidRuntime(8047): at android.app.ActivityThread.main(ActivityThread.java:5103)
11-16 12:46:29.100: E/AndroidRuntime(8047): at java.lang.reflect.Method.invokeNative(Native Method)
11-16 12:46:29.100: E/AndroidRuntime(8047): at java.lang.reflect.Method.invoke(Method.java:525)
11-16 12:46:29.100: E/AndroidRuntime(8047): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-16 12:46:29.100: E/AndroidRuntime(8047): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-16 12:46:29.100: E/AndroidRuntime(8047): at dalvik.system.NativeStart.main(Native Method)
Actvity_discuss.xml
<?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:orientation="vertical"
>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/form"
android:layout_alignParentTop="true"
android:choiceMode="none"
android:divider="#00000000"
android:dividerHeight="@dimen/zerosize"
android:footerDividersEnabled="false"
android:headerDividersEnabled="false"
android:listSelector="@android:color/transparent">
</ListView>
<RelativeLayout
android:id="@+id/form"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="40dp"
android:background="@drawable/inputbg" >
<!-- <Button
android:id="@+id/postpic"
android:layout_width="30dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/attachbtn" /> -->
<!-- android:background="@drawable/sendbutton" -->
<EditText
android:id="@+id/cr_room_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="@+id/sendMessage"
android:layout_weight="3"
android:ems="10"
android:hint="Enter Message"
android:inputType="text" />
<ImageView
android:id="@+id/postpic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="@drawable/picattach" />
<Button
android:id="@+id/sendMessage"
style="@style/SingleGradient"
android:layout_width="35dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
There seem to be a little confusion : you ask to find editText1 under the id cr_room_name : inside listitem_messages.xml, but it is apprently inside Actvity_discuss.xml.
Activity activity = (Activity) getContext();
editText1 = (EditText) activity.findViewById(R.id.cr_room_name);
But even if this works, it's really an ugly way to couple a view and an activity, you should better go for an observer-obersable design pattern.