Steps to Reproduce

When I type something with the Android keyboard, the keyboard hangs on the key press animation.

Code snippet:

// newRecipient is a field inside a State that is connected to a StatefulWidget

// Text Changed Handler
void _handleInputChange(InputValue input) {
    setState(() {
      newRecipient = input.text;
    });
  }

// Text Input
new Input(
  onChanged: _handleInputChange,
  value: new InputValue(text: newRecipient),
)

Flutter Doctor

[✓] Flutter (on Mac OS, channel master)
• Flutter at /Users/dayang/fuchsia/sysui/third_party/flutter
• Framework revision 9109bb0 (6 days ago), 2016-09-15 09:15:11
• Engine revision e9dd3e4
• Tools Dart version 1.20.0-dev.1.0

[✓] Android toolchain - develop for Android devices (Android SDK 23.0.3)
• Android SDK at /Users/dayang/Library/Android/sdk
• Platform android-23, build-tools 23.0.3
• Java(TM) SE Runtime Environment (build 1.8.0_91-b14)

[✓] iOS toolchain - develop for iOS devices (Xcode 7.3)
• XCode at /Applications/Xcode.app/Contents/Developer
• Xcode 7.3, Build version 7D175

[✓] Atom - a lightweight development environment for Flutter
• flutter plugin version 0.2.5
• dartlang plugin version 0.6.39

[✓] Connected devices
• Nexus 6P • 8XV5T15A23006055 • android-arm

Logs and Crash Reports

E/ActivityManager: ANR in com.google.android.inputmethod.latin
E/ActivityManager: PID: 17724
E/ActivityManager: Reason: Broadcast of Intent { act=android.intent.action.SCREEN_OFF flg=0x50000010 }
E/ActivityManager: Load: 0.0 / 0.0 / 0.0
E/ActivityManager: CPU usage from 11020ms to 0ms ago (2016-09-21 15:57:35.279 to 2016-09-21 15:57:46.299):
E/ActivityManager: 71% 900/system_server: 60% user + 11% kernel / faults: 5188 minor
E/ActivityManager: 62% 17724/com.google.android.inputmethod.latin: 53% user + 9.4% kernel / faults: 40406 minor
E/ActivityManager: 19% 4337/com.google.android.gms.persistent: 13% user + 6% kernel / faults: 2245 minor
E/ActivityManager: 8.8% 15886/adbd: 2.6% user + 6.2% kernel / faults: 4851 minor
E/ActivityManager: 8.7% 17635/org.domokit: 5.1% user + 3.5% kernel / faults: 187 minor
E/ActivityManager: 5.2% 356/logd: 1.9% user + 3.3% kernel / faults: 11 minor
E/ActivityManager: 4.8% 15146/android.process.acore: 2.6% user + 2.1% kernel / faults: 347 minor
E/ActivityManager: 3.6% 248/mmcqd/0: 0% user + 3.6% kernel
E/ActivityManager: 3.3% 17610/logcat: 1.6% user + 1.7% kernel
E/ActivityManager: 2.5% 8/rcu_preempt: 0% user + 2.5% kernel
E/ActivityManager: 1.6% 523/jbd2/dm-2-8: 0% user + 1.6% kernel
E/ActivityManager: 1.1% 3/ksoftirqd/0: 0% user + 1.1% kernel
E/ActivityManager: 1% 3880/com.android.phone: 0.5% user + 0.5% kernel / faults: 1 minor
E/ActivityManager: 0.9% 408/servicemanager: 0.2% user + 0.7% kernel
E/ActivityManager: 0.9% 500/dmcrypt_write: 0% user + 0.9% kernel
E/ActivityManager: 0.8% 12/ksoftirqd/1: 0% user + 0.8% kernel
E/ActivityManager: 0.8% 292/msm-core:sampli: 0% user + 0.8% kernel
E/ActivityManager: 0.8% 14746/kworker/u16:4: 0% user + 0.8% kernel
E/ActivityManager: 0.7% 16/ksoftirqd/2: 0% user + 0.7% kernel
E/ActivityManager: 0.6% 41/ksoftirqd/4: 0% user + 0.6% kernel
E/ActivityManager: 0.6% 239/cfinteractive: 0% user + 0.6% kernel
E/ActivityManager: 0.6% 17103/kworker/0:1: 0% user + 0.6% kernel
E/ActivityManager: 0.6% 17989/kworker/u17:6: 0% user + 0.6% kernel
E/ActivityManager: 0.5% 456/irq/215-fc38800: 0% user + 0.5% kernel
E/ActivityManager: 0.5% 3736/com.android.systemui: 0.2% user + 0.2% kernel / faults: 14 minor
E/ActivityManager: 0.5% 17183/kworker/u17:7: 0% user + 0.5% kernel
E/ActivityManager: 0.5% 17299/kworker/2:3: 0% user + 0.5% kernel
E/ActivityManager: 0.4% 17531/kworker/1:0: 0% user + 0.4% kernel
E/ActivityManager: 0.3% 20/ksoftirqd/3: 0% user + 0.3% kernel
E/ActivityManager: 0.3% 436/ksoftirqd/5: 0% user + 0.3% kernel
E/ActivityManager: 0.3% 17130/kworker/u17:5: 0% user + 0.3% kernel
E/ActivityManager: 0.2% 17853/kworker/u17:1: 0% user + 0.2% kernel
E/ActivityManager: 0.1% 35/kworker/u17:0: 0% user + 0.1% kernel
E/ActivityManager: 0.1% 51/system: 0% user + 0.1% kernel
E/ActivityManager: 0.1% 252/irq/224-spdm_bw: 0% user + 0.1% kernel
E/ActivityManager: 0.1% 409/surfaceflinger: 0% user + 0.1% kernel / faults: 1 minor
E/ActivityManager: 0.1% 16937/kworker/u17:2: 0% user + 0.1% kernel
E/ActivityManager: 0% 231/irq/216-tsens_i: 0% user + 0% kernel
E/ActivityManager: 0% 443/ksoftirqd/6: 0% user + 0% kernel
E/ActivityManager: 0% 543/oem_qmi_server: 0% user + 0% kernel / faults: 165 minor 36 major
E/ActivityManager: 0% 3749/wpa_supplicant: 0% user + 0% kernel
E/ActivityManager: 0% 4402/com.android.nfc: 0% user + 0% kernel / faults: 15 minor
E/ActivityManager: 0% 14974/android.process.media: 0% user + 0% kernel
E/ActivityManager: 0% 16947/kworker/u16:2: 0% user + 0% kernel
E/ActivityManager: 0% 17185/com.android.keychain: 0% user + 0% kernel
E/ActivityManager: 28% TOTAL: 18% user + 7.2% kernel + 1.8% iowait + 0.4% irq + 0.4% softirq
E/ActivityManager: CPU usage from 24478357ms to 24478357ms ago (1969-12-31 16:00:00.000 to 1969-12-31 16:00:00.000) with 0% awake:
E/ActivityManager: 0% TOTAL: 0% user + 0% kernel
W/ActivityManager: Scheduling restart of crashed service com.google.android.inputmethod.latin/com.android.inputmethod.latin.LatinIME in 1000ms