我有一个 xml 文件，它定义了一些首选项屏幕，如下例所示
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:key="root_preferencescreen">
<PreferenceScreen android:key="general_sett" android:title="general settings" />
....
<PreferenceScreen android:key="extras_sett" android:title="extras settings" />
</PreferenceScreen>
我希望能够增加首选项屏幕文本的字体大小，但因为首选项屏幕内没有 android:textsize 标签，我不知道如何实现这一点！
您可以简单地添加android:textSize在您的偏好屏幕主题中：
e.g :
<style name="settingsTheme" parent="PreferenceThemeOverlay">
<item name="colorAccent">@color/color_ten</item>
<item name="android:background">@color/colorPrimaryLight</item>
<item name="android:windowAnimationStyle">@style/WindowAnimationTransition</item>
<item name="android:textColorPrimary">@color/colorTextBodyLight</item>
<item name="android:textColorSecondary">@color/colorTextCaptionLight</item>
<item name="android:textSize">14sp</item>
</style>
Your SettingsActivity class :
public class SettingsActivity extends AppCompatActivity {
private Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
toolbar = (Toolbar)findViewById(R.id.toolbar_settings);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportFragmentManager().beginTransaction()
.replace(R.id.bodylayout, new PrefsFragment())
.commit();
}
@Override
protected void onPause() {
super.onPause();
}
}
PrefsFragment class :
public class PrefsFragment extends PreferenceFragmentCompat implements SharedPreferences.OnSharedPreferenceChangeListener {
@Override
public void onCreatePreferences(Bundle bundle, String s) {
}
@Override
public void onCreate(Bundle savedInstanceState) {
final Context myContext = this.getActivity();
//set your theme
myContext.setTheme(R.theme.settingsTheme);
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.settingspreference);
//do other stuffs
}
//.....
}
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