[英]set custom font for text in PreferenceScreen
我的 PreferenceActivity 看起来像:
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.widget.TextView;
public class Settings extends PreferenceActivity {
@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//setContentView(R.layout.about);
Typeface timesFont = Typeface.createFromAsset(getAssets(), "fonts/times.ttf");
TextView about_txt = (TextView) findViewById(R.id.about_txt);
about_txt.setTypeface(timesFont);
about_txt.setText(R.string.about_txt);
if (Build.VERSION.SDK_INT<Build.VERSION_CODES.HONEYCOMB)
{
addPreferencesFromResource(R.xml.preferences);
} else {
// Display the fragment as the main content.
getFragmentManager().beginTransaction().replace(android.R.id.content,
new PrefsFragment()).commit();
}
}
public static class PrefsFragment extends PreferenceFragment
{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Load the preferences from an XML resource
addPreferencesFromResource(R.xml.preferences);
}
}
}
和首选项.xml
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<ListPreference
android:dialogTitle="@string/size_dialog"
android:entries="@array/size_list"
android:entryValues="@array/entry_size"
android:key="size_list"
android:summary="@string/size_summary"
android:title="@string/pref4title"
/>
</PreferenceCategory>
<PreferenceCategory
android:title="@string/pref_about"
android:layout="@layout/about"
>
</PreferenceCategory>
</PreferenceScreen>
@layout/about (about.xml):
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/about_txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="some text here"
/>
</LinearLayout>
我有特定的语言,所以对于 about.xml 中的文本,我应该使用特定的字体。 我经常为 TextView 使用:
Typeface timesFont = Typeface.createFromAsset(getAssets(), "fonts/times.ttf");
TextView about_txt = (TextView) findViewById(R.id.about_txt);
about_txt.setTypeface(timesFont);
about_txt.setText(R.string.about_txt);
但是我应该使用什么来访问 about.xml 中添加到首选项屏幕的文本?
提前致谢!
也许更容易编写自己的首选项并将其添加到 xml 中
只需通过 Spannable将自定义字体设置为设置字段:
(看起来很长但很快完成:))
完整的解决方案:
private void convertPreferenceToUseCustomFont(Preference somePreference) {
CustomTypefaceSpan customTypefaceSpan = new CustomTypefaceSpan("", net.mikekober.myMory.utils.Utils.getUsedTypeFace(getActivity()));
SpannableStringBuilder ss;
if (somePreference.getTitle() != null) {
ss = new SpannableStringBuilder(somePreference.getTitle().toString());
ss.setSpan(customTypefaceSpan, 0, ss.length(),Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
somePreference.setTitle(ss);
}
if (somePreference.getSummary() != null) {
ss = new SpannableStringBuilder(somePreference.getSummary().toString());
ss.setSpan(customTypefaceSpan, 0, ss.length(),Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
somePreference.setSummary(ss);
}
}
为每个偏好调用它,你就完成了:)
玩得开心&祝你好运
顺便说一句:在更改文本时,再次调用它!!
btw2:检查,看到,应用,改进;)来自: https ://stackoverflow.com/a/10741161/371749
btw3,差点忘了:
static private class CustomTypefaceSpan extends TypefaceSpan {
private final Typeface newType;
public CustomTypefaceSpan(String family, Typeface type) {
super(family);
newType = type;
}
@Override
public void updateDrawState(TextPaint ds) {
applyCustomTypeFace(ds, newType);
}
@Override
public void updateMeasureState(TextPaint paint) {
applyCustomTypeFace(paint, newType);
}
private static void applyCustomTypeFace(Paint paint, Typeface tf) {
int oldStyle;
Typeface old = paint.getTypeface();
if (old == null) {
oldStyle = 0;
} else {
oldStyle = old.getStyle();
}
int fake = oldStyle & ~tf.getStyle();
if ((fake & Typeface.BOLD) != 0) {
paint.setFakeBoldText(true);
}
if ((fake & Typeface.ITALIC) != 0) {
paint.setTextSkewX(-0.25f);
}
paint.setTypeface(tf);
}
}
更改PreferenceScreen
所有TextViews
字体的最简单方法是:
public class WallpaperSettings extends PreferenceActivity {
private View tryInflate(String name, Context context, AttributeSet attrs) {
LayoutInflater li = LayoutInflater.from(context);
View v = null;
try {
v = li.createView(name, null, attrs);
} catch (Exception e) {
try {
v = li.createView("android.widget." + name, null, attrs);
} catch (Exception e1) {
}
}
return v;
}
protected void onCreate(Bundle savedInstanceState) {
//CHANGE TYPEFACE FOR ALL TEXTVIEWS
final Typeface font = Typeface.createFromAsset(getAssets(), "fonts/cabal.ttf");
getLayoutInflater().setFactory(new Factory() {
@Override
public View onCreateView(String name, Context context,
AttributeSet attrs) {
View v = tryInflate(name, context, attrs);
if (v instanceof TextView) {
((TextView) v).setTypeface(font);
}
return v;
}
});
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.prefs);
}
}
而已!
public class CustomPreference extends Preference
implements PreferenceStyle {
private int style;
public CustomPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public CustomPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomPreference(Context context) {
super(context);
}
@Override
protected void onBindView(View view) {
super.onBindView(view);
switch (style) {
case STYLE_ALARMED:
setStyleAlarmed(view);
break;
case STYLE_NORMAL:
setStyleNormal(view);
break;
case STYLE_WARNING:
setStyleWarning(view);
break;
case STYLE_SUMMARY_ALARM:
setStyleSummaryAlarm(view);
break;
case STYLE_SUMMARY_WARNING:
setStyleSummaryWarning(view);
break;
case STYLE_DISABLED:
setStyleDisabled(view);
break;
default:
break;
}
}
private void setStyleWarning(View view) {
TextView titleView = (TextView) view.findViewById(android.R.id.title);
titleView.setTextColor(Color.YELLOW);
// add your FONT here
}
private void setStyleAlarmed(View view) {
int alarmREDColor = view.getContext().getResources().getColor(R.color.alarmed_red);
TextView titleView = (TextView) view.findViewById(android.R.id.title);
titleView.setTextColor(alarmREDColor);
}
public void setStyle(int style) {
switch (style) {
case STYLE_ALARMED:
this.style = STYLE_ALARMED;
break;
case STYLE_NORMAL:
this.style = STYLE_NORMAL;
break;
default:
this.style = STYLE_NORMAL;
}
}
public interface PreferenceStyle {
public static final int STYLE_DISABLED = 0;
public static final int STYLE_NORMAL = 10;
public static final int STYLE_ALARMED = 20;
public static final int STYLE_WARNING = 30;
public static final int STYLE_SUMMARY_ALARM = 40;
public static final int STYLE_SUMMARY_WARNING = 50;
public void setStyle(int style);
public Context getContext();
public void setSummary(CharSequence summary);
}
public class YourActivity extends PreferenceActivity {
private CustomPreference pref1;
private CustomPreference pref2;
private CustomPreference pref3;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.prefence_xml);
pref1 = findPreference();
pref1.setOnPreferenceClickListener(this);
pref1.setStyle(PreferenceStyle.STYLE_NORMAL);
}
}
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
<PreferenceCategory
android:title="category1">
<com.project.main.preference.CustomPreference
android:key="key"
android:title="title"
/>
<com.project.main.preference.CustomPreference
android:key="key"
android:title="title"/>
</PreferenceCategory>
</PreferenceScreen>
通过在 android O 中添加字体支持,我们现在可以为应用主题设置一个font-family
,这也会自动反映在PreferenceFragment
中。 (注意:我正在使用PreferenceFragmentCompat
)。 首先向资源中添加一个font-family
,如下所示:
<font-family xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<font
android:fontStyle="normal"
android:fontWeight="400"
android:font="@font/nunito"
app:fontStyle="normal"
app:fontWeight="400"
app:font="@font/nunito"/>
<font
android:fontStyle="italic"
android:fontWeight="400"
android:font="@font/nunito_italic"
app:fontStyle="italic"
app:fontWeight="400"
app:font="@font/nunito_italic" />
注意:您现在需要app
和android
命名空间声明链接
然后为文本视图添加一个style
,提到TextView
这个font-family
:
<style name="NunitoTextViewStyle" parent="android:Widget.TextView">
<item name="android:fontFamily">@font/nunito_regular_font_family</item>
</style>
最后,在你的AppTheme
引用上述style
,如下所示:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
........
<item name="android:textViewStyle">@style/NunitoTextViewStyle</item>
</style>
完毕。 这也将在您的PreferenceFragmentCompat
显示自定义字体。
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