Cannot display a Unicode character (Emoji) in an Android TextView with large text: "Font size too large to fit in cache"

Question

I'm trying to display a single Unicode character (an emoji) in a TextView, with a large(r) text size:

mEmojiTextView = (TextView) findViewById(R.id.emoji_text_view);
mEmojiTextView.setTextSize(200);
mEmojiTextView.setText("\uD83D\uDE01");

The character does not appear on the screen, and I get this error in logcat:

E/OpenGLRenderer﹕ Font size too large to fit in cache. width, height = 545, 513

The largest size that works is

mEmojiTextView.setTextSize(150);

and the Emoji character appears. It's not like it's full screen or anything, at this text size there is enough space on the screen for about 6 emoji characters.

I'm running the test on a LG Nexus 5 phone, with 1080 x 1920 resolution, running Android 5.1.1. I'm using minSdkVersion 11 and targetSdkVersion 23

I tried many workarounds found on StackOverflow and elsewhere:

mEmojiTextView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);

<TextView android:layerType="software" ... />

<activity android:hardwareAccelerated="false" ... />

Nothing works.

Is there a way I can get it to work?

Answer 1

It's an android issue Issue with emoji with 200sp size No way to fix it at the moment, just don't set size more than 199 if you have emoji in TextView