Accessing child views inside a ListItem defined as LinearLayout
I'm trying to retrieve the getText() value of a TextView defined in my ListItem Layout, inside the setOnItemClickListener method.
Basically, I want to log data (Id, LookupKey, DisplayName, or PhoneNumber) allowing me to retrieve the contact selected regardless of the listview/adapter used.
I display a simple TextView and an Imageview which visibility is set according to the data. here is the layout : contact_entry.xml :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content" android:baselineAligned="false"
android:layout_width="fill_parent" android:padding="5px">
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:textSize="16px"
android:text="@+id/contactEntryText" android:id="@+id/contactEntryText">
</TextView>
<TableRow android:paddingLeft="5px" android:visibility="visible"
android:paddingRight="5px" android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/indicator_logo_table"
android:gravity="right">
<ImageView android:layout_width="wrap_content"
android:id="@+id/imageView1"
android:layout_height="fill_parent"
android:src="@drawable/indicator">
</ImageView>
</TableRow>
</LinearLayout>
the adapter i use is defined below :
SimpleAdapterWithImageView adapter = new SimpleAdapterWithImageView(
this, R.layout.contact_entry, cursor, fields,
new int[] { R.id.contactEntryText });
mContactList.setAdapter(adapter);
( You could have guessed it's for displaying the contact's Display_Name from the ContactsContract ContentProvider. )
and here is finally the mContactList.setOnItemClickListener ...
mContactList.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
LinearLayout linear = (LinearLayout) view.findViewById(R.layout.contact_entry);
Log.i("done","linear layout"); // it's not done at all ! findViewById returns null;
//this part is currently useless
TextView displayed_name = (TextView) linear.findViewById(R.id.contactEntryText);
Log.i("done","Displayed name = linear.findViewById contactentrytext");
Toast.makeText(getApplicationContext(),
// displayed_name.getText(), //
//view.getContentDescription(), //
Toast.LENGTH_SHORT).show();
}
As you can see i'm only trying to display a toast for the moment, in the end the name will be put as an extra for an intent.
So : the best result i got these last 36 hours (sigh) is displaying the name of the first contact displayed in the toast, even when clicking on the second item...
TextView displayed_name = (TextView) findVie开发者_如何学编程wById(R.id.contactEntryText);
Toast.makeText(getApplicationContext(),displayed_name.getText(),
Toast.LENGTH_SHORT).show();
}
I've been trying stuff like the tutorial google provided here, which (am I wrong? I'm new to Android so don't hesitate to slap me in the face ...) actually casts the whole View in a TextView ...
plus other tricks like view.getChildAt() and so on... for hours.
I'm convinced it's not that hard, yet i'm running in circles ! I don't think it is because of my adapter, but if anyone thinks it could be the cause, i could provide the code in another post.
Thanks in advance !
LinearLayout linear = (LinearLayout) view.findViewById(R.layout.contact_entry);
Here is a mistake - you shan't use R.layout
in findViewById
. Usually, you need to use R.id
there, or replace findViewById
by inflating a layout. But in this case you just need the view
from arguments.
Replace the quted code with this one:
LinearLayout linear = (LinearLayout) view;
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