Make read error toast configurable

Sometimes nfc read error toast would reset screen timeout,
because NFC would detect the same tag every few seconds
when unknown_tag_polling_delay enabled.

Set read error toast default disable,
since read error toast conflicts with unknown_tag_polling_delay.

Test: manual
Bug: 159865156
Change-Id: I0ce6e53ba2dcb8a7780437ec8e9d21fb303e09ce
(cherry picked from commit ded912677609b751fe92c25ea8930dce35dd73af)
diff --git a/res/values/config.xml b/res/values/config.xml
index 2186cb8..c350181 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -4,6 +4,7 @@
     <bool name="enable_nfc_url_open_dialog">false</bool>
     <bool name="enable_auto_play">true</bool>
     <bool name="enable_notify_dispatch_failed">false</bool>
+    <bool name="enable_notify_read_failed">false</bool>
     <bool name="enable_antenna_blocked_alert">false</bool>
     <bool name="polling_disable_allowed">false</bool>
     <integer name="max_antenna_blocked_failure_count">10</integer>
diff --git a/src/com/android/nfc/NfcService.java b/src/com/android/nfc/NfcService.java
index 0bbe4ce..837940c 100644
--- a/src/com/android/nfc/NfcService.java
+++ b/src/com/android/nfc/NfcService.java
@@ -309,6 +309,7 @@
 
     int mPollDelay;
     boolean mNotifyDispatchFailed;
+    boolean mNotifyReadFailed;
 
     private NfcDispatcher mNfcDispatcher;
     private PowerManager mPowerManager;
@@ -553,6 +554,7 @@
         // Polling delay variables
         mPollDelay = mContext.getResources().getInteger(R.integer.unknown_tag_polling_delay);
         mNotifyDispatchFailed = mContext.getResources().getBoolean(R.bool.enable_notify_dispatch_failed);
+        mNotifyReadFailed = mContext.getResources().getBoolean(R.bool.enable_notify_read_failed);
 
         mPollingDisableAllowed = mContext.getResources().getBoolean(R.bool.polling_disable_allowed);
 
@@ -2341,7 +2343,7 @@
                         if (!tag.reconnect()) {
                             tag.disconnect();
                             if (mScreenState == ScreenStateHelper.SCREEN_STATE_ON_UNLOCKED) {
-                                if (!sToast_debounce) {
+                                if (!sToast_debounce && mNotifyReadFailed) {
                                     Toast.makeText(mContext, R.string.tag_read_error,
                                                    Toast.LENGTH_SHORT).show();
                                     sToast_debounce = true;