Hello everyone,
first, I'm very sorry, if I'm in the wrong group for my question.
I have a Problem with my custom Listview. I created a Activity and an
appropriate xml-file with a ListView for the settings of my
application. Source Code comes below. Also I created a custom Layout
file for the rows, which contain a Textview and a Checkbox. The
settings it self are stored serialized in the filesystem and where
picked up, when the settings view is called. Perhaps thats not the
best Option, but that is not causing the problem i have.
In the List layout there is also a textview available as a header.
Now, when the settings are called, I just see the reader, the
remaining screen stays simply black. I tried to give the list another
background color, but the screen stays black.
Code from the Activity (onCreate method):
public void onCreate(Bundle icicle)
{
userSettings = deserializeObject();
if(userSettings.isEmpty())
{
userSettings.add(new SettingItem("Camera",
android.os.Environment.DIRECTORY_DCIM, true));
}
super.onCreate(icicle);
super.setContentView(R.layout.list);
Context mContext = this.getApplicationContext();
settingsList = (ListView)findViewById(R.id.settinglist);
CustomSettingsAdapter setAdap = new
CustomSettingsAdapter(mContext,
userSettings);
settingsList.setAdapter(setAdap);
settingsList.requestFocus();
settingsList.requestFocusFromTouch();
Code from the CustomSettingsAdapter:
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
if (convertView == null)
{
convertView = mInflater.inflate(R.layout.settings_item, null);
holder = new ViewHolder();
holder.txtName = (TextView)
convertView.findViewById(R.id.setting_name);
holder.cb = (CheckBox) convertView.findViewById(R.id.check);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
holder.txtName.setText(settingsArrayList.get(position).getName());
holder.cb.setChecked(settingsArrayList.get(position).getState());
return convertView;
}
XML-File of the list:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android";>
<TextView android:id="@+id/settings_list_title"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:text="@string/settings_header"
android:textAppearance="?android:attr/textAppearanceMedium"
android:gravity="center" />
<ListView android:id="@+id/settinglist"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#aaaaaa" />
</LinearLayout>
XML-File of the rows:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="4dp">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="2dp">
<TextView
android:id="@+id/setting_name"
android:textSize="18sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TextView>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:gravity="right"
android:layout_gravity="right"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="2dp">
<CheckBox
android:id="@+id/check"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</CheckBox>
</LinearLayout>
Thank you very much in advance for your help!
Greetings Tobi
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