Large text ANR when call refreshText

[liufsd]

Expected

support show large text.

Observed

show large text content ,when call refreshText such as audio/video update. it will ANR.

 DALVIK THREADS (166):
"main" prio=5 tid=1 Suspended
  | group="main" sCount=1 dsCount=0 obj=0x7401b170 self=0xb7b26ff0
  | sysTid=14015 nice=-4 cgrp=top_visible sched=0/0 handle=0xb6f0cbec
  | state=S schedstat=( 97086069392 2645848816 27032 ) utm=9382 stm=326 core=5 HZ=100
  | stack=0xbe781000-0xbe783000 stackSize=8MB
  | held mutexes=
  at kotlin.ranges.IntProgressionIterator.nextInt(ProgressionIterators.kt:63)
  at org.wordpress.aztec.formatting.LineBlockFormatter.containsHeading(LineBlockFormatter.kt:199)
  at org.wordpress.aztec.AztecText.contains(AztecText.kt:861)
  at org.wordpress.aztec.AztecText.getAppliedStyles(AztecText.kt:786)
  at org.wordpress.aztec.AztecText.onSelectionChanged(AztecText.kt:748)
  at android.widget.TextView.spanChange(TextView.java:7883)
  at android.widget.TextView$ChangeWatcher.onSpanAdded(TextView.java:9618)
  at android.text.SpannableStringBuilder.sendSpanAdded(SpannableStringBuilder.java:985)
  at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:694)
  at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:611)
  at android.text.Selection.setSelection(Selection.java:78)
  at android.text.Selection.setSelection(Selection.java:87)
  at android.text.method.ArrowKeyMovementMethod.initialize(ArrowKeyMovementMethod.java:318)
  at android.widget.TextView.setText(TextView.java:4097)
  at android.widget.TextView.setText(TextView.java:3967)
  at android.widget.EditText.setText(EditText.java:85)
  at android.widget.TextView.setText(TextView.java:3942)
  at org.wordpress.aztec.AztecText.refreshText(AztecText.kt:1263)
  at com.hujiang.cctalk.richtexteditor.SimpleAudioTappedImpl.update(SimpleAudioTappedImpl.kt:332)
  at com.hujiang.cctalk.richtexteditor.SimpleAudioTappedImpl.access$update(SimpleAudioTappedImpl.kt:24)
  at com.hujiang.cctalk.richtexteditor.SimpleAudioTappedImpl$downloadAudio$2$1.invoke(SimpleAudioTappedImpl.kt:242)
  at com.hujiang.cctalk.richtexteditor.SimpleAudioTappedImpl$downloadAudio$2$1.invoke(SimpleAudioTappedImpl.kt:24)
  at com.hujiang.cctalk.richtexteditor.SimpleAudioTappedImpl$onMainUIThread$1.run(SimpleAudioTappedImpl.kt:349)
  at com.badoo.mobile.util.WeakHandler$WeakRunnable.run(WeakHandler.java:443)
  at android.os.Handler.handleCallback(Handler.java:739)
  at android.os.Handler.dispatchMessage(Handler.java:95)
  at android.os.Looper.loop(Looper.java:137)
  at android.app.ActivityThread.main(ActivityThread.java:5595)
  at java.lang.reflect.Method.invoke!(Native method)
  at java.lang.reflect.Method.invoke(Method.java:372)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

Reproduced

1. run demo app
2. paste large text ,such as this html: https://www.cctalk.com/m/topic/418028231327212
3. call refresh text. it will crash .(i have custom audio span, like above html showed. it will show playing progress.)

Tested

android 5.0