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
以下代码将适用于所有版本。我确实在gingerbread设备和JellyBean设备上检查了这一点
private void actionBarIdForAll()
{
int titleId = 0;
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.HONEYCOMB)
{
titleId = getResources().getIdentifier("action_bar_title", "id", "android");
}
else
{
// This is the id is from your app's generated R class when ActionBarActivity is used for SupportActionBar
titleId = R.id.action_bar_title;
}
if(titleId>0)
{
// Do whatever you want ? It will work for all the versions.
// 1. Customize your fonts
// 2. Infact, customize your whole title TextView
TextView titleView = (TextView)findViewById(titleId);
titleView.setText("RedoApp");
titleView.setTextColor(Color.CYAN);
}
}
其他回答
更新正确答案。
首先:将标题设置为false,因为我们正在使用自定义视图
actionBar.setDisplayShowTitleEnabled(false);
第二步:创建titleview.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent" >
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:textSize="20dp"
android:maxLines="1"
android:ellipsize="end"
android:text="" />
</RelativeLayout>
最后:
//font file must be in the phone db so you have to create download file code
//check the code on the bottom part of the download file code.
TypeFace font = Typeface.createFromFile("/storage/emulated/0/Android/data/"
+ BuildConfig.APPLICATION_ID + "/files/" + "font name" + ".ttf");
if(font != null) {
LayoutInflater inflator = LayoutInflater.from(this);
View v = inflator.inflate(R.layout.titleview, null);
TextView titleTv = ((TextView) v.findViewById(R.id.title));
titleTv.setText(title);
titleTv.setTypeface(font);
actionBar.setCustomView(v);
} else {
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(" " + title); // Need to add a title
}
下载字体文件:因为我把文件存储到cloudinary,所以我有链接下载它。
/**downloadFile*/
public void downloadFile(){
String DownloadUrl = //url here
File file = new File("/storage/emulated/0/Android/data/" + BuildConfig.APPLICATION_ID + "/files/");
File[] list = file.listFiles();
if(list == null || list.length <= 0) {
BroadcastReceiver onComplete = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
try{
showContentFragment(false);
} catch (Exception e){
}
}
};
registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(DownloadUrl));
request.setVisibleInDownloadsUi(false);
request.setDestinationInExternalFilesDir(this, null, ModelManager.getInstance().getCurrentApp().getRegular_font_name() + ".ttf");
DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
manager.enqueue(request);
} else {
for (File files : list) {
if (!files.getName().equals("font_name" + ".ttf")) {
BroadcastReceiver onComplete = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
try{
showContentFragment(false);
} catch (Exception e){
}
}
};
registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(DownloadUrl));
request.setVisibleInDownloadsUi(false);
request.setDestinationInExternalFilesDir(this, null, "font_name" + ".ttf");
DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
manager.enqueue(request);
} else {
showContentFragment(false);
break;
}
}
}
}
int titleId = getResources().getIdentifier("action_bar_title", "id",
"android");
TextView yourTextView = (TextView) findViewById(titleId);
yourTextView.setTextColor(getResources().getColor(R.color.black));
yourTextView.setTypeface(face);
我们需要使用反射来实现这一点
final int titleId = activity.getResources().getIdentifier("action_bar_title", "id", "android");
final TextView title;
if (activity.findViewById(titleId) != null) {
title = (TextView) activity.findViewById(titleId);
title.setTextColor(Color.BLACK);
title.setTextColor(configs().getColor(ColorKey.GENERAL_TEXT));
title.setTypeface(configs().getTypeface());
} else {
try {
Field f = bar.getClass().getDeclaredField("mTitleTextView");
f.setAccessible(true);
title = (TextView) f.get(bar);
title.setTextColor(Color.BLACK);
title.setTypeface(configs().getTypeface());
} catch (NoSuchFieldException e) {
} catch (IllegalAccessException e) {
}
}
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");
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);
}
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