Develop Reference

Android Studio: Layout Preview gives "native typeface cannot be made"

I'm using a font I found on the internet. In particular, the font that is currently causing a problem is Amaranth (Google Fonts link).
I've looked through these questions:
Native typeface cannot be made
RuntimeException: native typeface cannot be made
native typeface cannot be made, exception
custom font in android studio
All of those questions seem to be dealing with crashes that occur on the device at runtime. My problem is that I get this Exception when trying to use Android Studio's Preview tool to preview my layout.
The text I'm seeing in the "Rendering Problems" pop-up is this:
Exception raised during rendering: native typeface cannot be made
java.lang.RuntimeException: native typeface cannot be made   
at android.graphics.Typeface.<init>(Typeface.java:147)   
at android.graphics.Typeface.createFromAsset(Typeface.java:121)   
at app.SegmentButton.onDraw(SegmentButton.java:79)
The code in SegmentButton is this:
#Override
public void onDraw(Canvas canvas) {
// Other code...
String fontPath = "fonts/Amaranth-Bold.otf";
// The next line is the line that causes the "crash"
Typeface tf = Typeface.createFromAsset(mContext.getAssets(), fontPath);
textPaint.setTypeface(tf);
// Other code...
}
I have checked and ensured the following items:
My assets folder is in 'app/src/main/assets'
My fonts folder is in 'app/src/main/assets/fonts'
The file name is exactly "Amaranth-Bold.otf"
This font works exactly as desired when running my app. I have tested this on an LG Optimus Pro G as well as a Droid X. You can see the results in these images:
LG Optimus G Pro Screen Shot
Droid X Screen Shot
As you can see, the fonts show up as desired in both places. As you can probably also see, the Droid X screen shot shows some layout issues that I need to resolve. I'm trying figure out how to do this at design time using the tools built in to Android Studio. This is merely the first issue I'm tackling. I would hate to have to run the app each time in order to make small tweaks to the layout. This is especially true since these are the only two hardware devices I currently have, and I want to test on a much wider variety of screen sizes (and the emulator is sloooooooooow).
Based on my reading of other questions (and primarily based on the fact that the devices load the font fine at runtime), my current conclusions are:
The font file isn't "broken".
The font location isn't wrong.
The typed-in file name isn't wrong (extension, capitalization, etc.)
What else can I try?

I had the same problem yesterday. Android Studio gives you this tip:
Use View.isInEditMode() in your custom views to skip code or show sample data when shown in the IDE
Rewrite your onDraw() method like this:
#Override
public void onDraw(Canvas canvas) {
// Other code...
if(!isInEditMode())changeFont();
// Other code...
}
private void changeFont(){
String fontPath = "fonts/Amaranth-Bold.otf";
Typeface tf = Typeface.createFromAsset(mContext.getAssets(), fontPath);
textPaint.setTypeface(tf);
}

How to display Sinhala Unicode characters in android app

I,m trying to show Sinhala Unicode characters in android app.
when i am using Samsung tabs or phones Unicode is running it on without problem.but it does not work on other phones or tab.cause there is no Sinhala Unicode.How to do this for an example i run this code on Samsung tab successfully.
Toast.makeText(this, "අන්තර්ජාල සම්බන්දතාවය තිබේ ", Toast.LENGTH_SHORT).show();
but other phones or tab does n't work.

You might need to have a Sinhalese font file (say, Sinhalese.ttf) in the directory assets/fonts in the root of your project. You create a dummy text view because it has a method called setTypeface, which sets the font for next code:
import android.graphics.Typeface;
public class FontSampler extends Activity {
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
TextView tv=(TextView)findViewById(R.id.custom); // a dummy text view
Typeface face=Typeface.createFromAsset(getAssets(),
"fonts/Sinhalese.ttf");
tv.setTypeface(face);
Toast.setView(tv).makeText(this, "අන්තර්ජාල සම්බන්දතාවය තිබේ ", Toast.LENGTH_SHORT).show();
}
}
This way, even if an android phone doesn't have a font installed, then the font embedded in your app will serve. Hope this helps.

If you want to render the Both sinhala and English in same text box then use Iskolapota font file.And do the same as #Nonymous answer says. It works for me.

textStyle for Tamil font?

I'm already working on an Android application that displays RSS feed.
My problem is that this feed has some lines in Tamil(which Android still doesn't support)
I found a font online that displays the text right(without converting to Bamini) but the problem is that textStyle doesn't have any effect on it.
so you know any font that can do the job or any thing i have to do to make textStyling?
thanks in advance

What you need to do is import custom fonts on to the phone before using them.
A good way to do that is to include them in the package - in the APK file
Hence you should be having the font in your project when you build the APK file.
Let me give you an example. Assuming your tamil font's name is Harabara.ttf and you have copied it to /assets/fonts
Use this method (anywhere in your activity)
private void initializeFonts() {
font_harabara = Typeface.createFromAsset(getAssets(), "fonts/Harabara.ttf");
}
and call this API from your onCreate like this
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initializeFonts();
setContentView(getViewResourceId());
}
Make sure you have declared this class level variable
Typeface font_harabara = null;
Finally, simply use
myTextField.setTypeface(font_harabara);
tada ! tamil font should now start displaying.
nandri vanakkam,
vaidyanathan

There are hundreds of fonts available online. Did you check some TSCII fonts?
I've written some solutions for Tamil and Android issues. Check it out too.

Bengali unicoded character showing problem

I have created an android application where I want to display unicoded bengali sentences.
For this I have done the following steps.
Step1: I store my bengali font named Siyamrupali.ttf in the Assets folder.
Step2: In main.xml file I took a text view where I display characters.
Step3: In my MainActivity. Java I wrote this...
public class mainAc extends Activity
{
AssetManager arabi_font;
TextView tx;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tx=(TextView)findViewById(R.id.tv);
try
{
String str="\u0986";
tx.setTypeface(Typeface.createFromAsset(getAssets(),"Siyamrupali.ttf"));
tx.setText(str);
}
catch(Exception ex)
{
tx.setText("font cannot load: "+ ex.toString() );
}
}
Then output show আ Which one is correct But When i wrote String str="\u0986\u09AE\u09Bf";
In MainActivity. Java
Then output shows আমই But i should be আমি
What can I do now to solve this problem. Any body give me some advice or link or sample code.

\u0986\u09A\u09BF is not a valid unicode character. I am afraid why you didnot get error. please have a look on the following like
Unicode character of Bengali scripts
Thanks

Android doesn't have full complex text layout support for all of Unicode yet, and Bengali matras are one feature that isn't rendered right. See issue 5925. Sorry!

Issue in custom font (RTL labguage)

According to android 2.3 some RTL languages such as Arabic is supported in this new version. However, emulator does not show the fount correctly. In code I have written:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView txt = (TextView) findViewById(R.id.myText);
Typeface font = Typeface.createFromAsset(getAssets(), "Larabieb.ttf");
txt.setTypeface(font);
txt.setTextSize(26);
txt.setText("السلام علیک یا حبیبی");
}
but in the output it shows separated characters instead of connected characters.
How can I connect the characters?

As of this date only Samsung's phones running on android support bidi and display of arabic characters. There is nothing wrong with your code. Open the web browser and browse an arabic website you will see the same problem on non-samsung phones.

you can use this tools
Tools.fa("سلام علیکم");
sample image: