我创建了一个包含两个类别和一个复选框的PreferenceFragment,但是,当我在我的应用程序中显示它时,背景看起来是透明的.
我可以看到主要活动,字段和PreferenceFragment已经放在主要活动的顶部…这个解决方案是什么?
在我的主要活动中,我这样做是为了在选择设置按钮时打开PreferenceFragment:
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- //handle presses on action bar items
- switch (item.getItemId()) {
- case R.id.action_settings:
- getFragmentManager().beginTransaction().replace(android.R.id.content,new SettingsFragment()).commit();
- return true;
- default:
- return super.onOptionsItemSelected(item);
- }
- }
我的PreferenceFragment代码如下所示:
public class SettingsFragment扩展了PreferenceFragment {
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- //load the preferences from an XML resource
- addPreferencesFromResource(R.xml.preferences);
- }
- }
我的preferences.xml看起来像这样:
- <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_height="wrap_content"
- android:layout_width="wrap_content"
- android:layout="@layout/fragment_settings">
- <PreferenceCategory
- android:title="@string/server_prefs_title"
- android:key="pref_key_server_settings" >
- <CheckBoxPreference
- android:key="pref_server_url"
- android:title="@string/pref_server_url"
- android:summary="@string/pref_server_url_summ"
- android:defaultValue="true" />
- </PreferenceCategory>
- <PreferenceCategory
- android:title="@string/company_prefs_title"
- android:key="pref_key_company_settings" >
- </PreferenceCategory>
- </PreferenceScreen>
我尝试了Stack Overflow上的另一个答案并将其添加到我的Preference Fragment中,虽然它阻止了从Main Activity中可见的字段,但它看起来只是一个掩码,因为片段字段也受到颜色的影响我设置:
- @Override
- public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle
- savedInstanceState) {
- View view = super.onCreateView(inflater,container,savedInstanceState);
- view.setBackgroundColor(getResources().getColor(android.R.color.black));
- return view;
- }
谢谢您的帮助!!!
编辑:我想我在输入时回答了我自己的问题……我补充道:
- addPreferencesFromResource(R.xml.preferences);
做完之后:
- View view = super.onCreateView(inflater,savedInstanceState);
- view.setBackgroundColor(getResources().getColor(android.R.color.black));
解决方法
在扩展PreferenceFragment的Fragment(SettingsFragment)中添加它:
- @Override
- public View onCreateView(LayoutInflater inflater,Bundle savedInstanceState) {
- View view = super.onCreateView(inflater,savedInstanceState);
- view.setBackgroundColor(getResources().getColor(android.R.color.white));
- return view;
- }