如何(如果可能的话)我可以设置自定义字体在ActionBar标题文本(只有-不是标签文本)与字体在我的资产文件夹?我不想使用android:logo选项。
当前回答
从Android支持库v26 + Android Studio 3.0起,这个过程变得简单如轻弹!!
按照以下步骤更改工具栏标题的字体:
Read Downloadable Fonts & select any font from the list (my recommendation) or load a custom font to res > font as per Fonts in XML In res > values > styles, paste the following (use your imagination here!) <style name="TitleBarTextAppearance" parent="android:TextAppearance"> <item name="android:fontFamily">@font/your_desired_font</item> <item name="android:textSize">23sp</item> <item name="android:textStyle">bold</item> <item name="android:textColor">@android:color/white</item> </style> Insert a new line in your Toolbar properties app:titleTextAppearance="@style/TextAppearance.TabsFont" as shown below <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" app:titleTextAppearance="@style/TitleBarTextAppearance" app:popupTheme="@style/AppTheme.PopupOverlay"/> Enjoy Custom Actionbar Title font styling!!
其他回答
这是一个丑陋的黑客,但你可以这样做(因为action_bar_title是隐藏的):
try {
Integer titleId = (Integer) Class.forName("com.android.internal.R$id")
.getField("action_bar_title").get(null);
TextView title = (TextView) getWindow().findViewById(titleId);
// check for null and manipulate the title as see fit
} catch (Exception e) {
Log.e(TAG, "Failed to obtain action bar title reference");
}
这段代码适用于后姜饼设备,但也可以很容易地扩展到动作栏Sherlock
附注:基于@pjv评论,有一个更好的方法找到操作栏标题id
final int titleId =
Resources.getSystem().getIdentifier("action_bar_title", "id", "android");
为了补充@Sam_D的答案,我必须这样做才能使它工作:
this.setTitle("my title!");
((TextView)v.findViewById(R.id.title)).setText(this.getTitle());
TextView title = ((TextView)v.findViewById(R.id.title));
title.setEllipsize(TextUtils.TruncateAt.MARQUEE);
title.setMarqueeRepeatLimit(1);
// in order to start strolling, it has to be focusable and focused
title.setFocusable(true);
title.setSingleLine(true);
title.setFocusableInTouchMode(true);
title.requestFocus();
这似乎有点过分-两次引用v.f entviewbyid (R.id.title)) -但这是唯一的方法,它会让我这样做。
使用新的工具栏在支持库设计你自己的动作栏或使用下面的代码
膨胀的Textview不是一个好的选择,尝试可扩展的字符串生成器
Typeface font2 = Typeface.createFromAsset(getAssets(), "fonts/<your font in assets folder>");
SpannableStringBuilder SS = new SpannableStringBuilder("MY Actionbar Tittle");
SS.setSpan (new CustomTypefaceSpan("", font2), 0, SS.length(),Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
actionBar.setTitle(ss);
复制以下类
public 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);
}
}
试试这个
public void findAndSetFont(){
getActionBar().setTitle("SOME TEST TEXT");
scanForTextViewWithText(this,"SOME TEST TEXT",new SearchTextViewInterface(){
@Override
public void found(TextView title) {
}
});
}
public static void scanForTextViewWithText(Activity activity,String searchText, SearchTextViewInterface searchTextViewInterface){
if(activity == null|| searchText == null || searchTextViewInterface == null)
return;
View view = activity.findViewById(android.R.id.content).getRootView();
searchForTextViewWithTitle(view, searchText, searchTextViewInterface);
}
private static void searchForTextViewWithTitle(View view, String searchText, SearchTextViewInterface searchTextViewInterface)
{
if (view instanceof ViewGroup)
{
ViewGroup g = (ViewGroup) view;
int count = g.getChildCount();
for (int i = 0; i < count; i++)
searchForTextViewWithTitle(g.getChildAt(i), searchText, searchTextViewInterface);
}
else if (view instanceof TextView)
{
TextView textView = (TextView) view;
if(textView.getText().toString().equals(searchText))
if(searchTextViewInterface!=null)
searchTextViewInterface.found(textView);
}
}
public interface SearchTextViewInterface {
void found(TextView title);
}
没有自定义的文本视图是必需的!
首先,在你的java代码中禁用工具栏中的标题: getSupportActionBar () .setDisplayShowTitleEnabled(假);
然后,只需在工具栏内添加一个TextView:
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/app_name"
android:textSize="18sp"
android:fontFamily="@font/roboto" />
</android.support.v7.widget.Toolbar>
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