fix android TextInput transitions

Summary:
On Android, when changing the props on TextInput component, there are cases where behavior is incorrect.

ex: there were two other PR requests to fix the following issues:
1) TextInput doesnt respect the autoCapitalize prop when keyboardType is set to "default"
2) Password visibility is broken

But those PRs ended up breaking a transition from phone-pad to default

Root cause
- The issue is that the bits that Android defines to store the InputType flags are reused.
- For example, the previous issue: TYPE_TEXT_FLAG_CAP_WORDS and TYPE_NUMBER_FLAG_DECIMAL are both using 0x00002000 bit. So when switching input types from phone-pad to default (text), it is not known if this bit should be cleared. It could have been set for capitalize or for indicating the num pad should be generic.

the solution is to always unset the TYPE_CLASS flags before setting the keyboardType so the user has the correct keyboard.

Changelog: [Fixed] TextInput transition from phone-pad to default

Reviewed By: JoshuaGross

Differential Revision: D20263334

fbshipit-source-id: 0b283fbd6314bf10b90f760917447d2439aaa147

Author: Michael Yoon (LAX)

ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactTextInputManager.java

@@ -97,12 +97,6 @@ public class ReactTextInputManager extends BaseViewManager<ReactEditText, Layout
       INPUT_TYPE_KEYBOARD_DECIMAL_PAD | InputType.TYPE_NUMBER_FLAG_SIGNED;
   private static final int PASSWORD_VISIBILITY_FLAG =
       InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD & ~InputType.TYPE_TEXT_VARIATION_PASSWORD;
-  private static final int KEYBOARD_TYPE_FLAGS =
-      INPUT_TYPE_KEYBOARD_NUMBERED
-          | InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
-          | InputType.TYPE_CLASS_TEXT
-          | InputType.TYPE_CLASS_PHONE
-          | PASSWORD_VISIBILITY_FLAG;
   private static final int AUTOCAPITALIZE_FLAGS =
       InputType.TYPE_TEXT_FLAG_CAP_SENTENCES
           | InputType.TYPE_TEXT_FLAG_CAP_WORDS
@@ -731,7 +725,6 @@ public void setAutoCapitalize(ReactEditText view, Dynamic autoCapitalize) {
   @ReactProp(name = "keyboardType")
   public void setKeyboardType(ReactEditText view, @Nullable String keyboardType) {
     int flagsToSet = InputType.TYPE_CLASS_TEXT;
-    boolean unsettingFlagsBreaksAutocomplete = false;
     if (KEYBOARD_TYPE_NUMERIC.equalsIgnoreCase(keyboardType)) {
       flagsToSet = INPUT_TYPE_KEYBOARD_NUMBERED;
     } else if (KEYBOARD_TYPE_NUMBER_PAD.equalsIgnoreCase(keyboardType)) {
@@ -746,15 +739,9 @@ public void setKeyboardType(ReactEditText view, @Nullable String keyboardType) {
       // This will supercede secureTextEntry={false}. If it doesn't, due to the way
       //  the flags work out, the underlying field will end up a URI-type field.
       flagsToSet = InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
-    } else if ((view.getStagedInputType() & AUTOCAPITALIZE_FLAGS) != 0) {
-      // This prevents KEYBOARD_TYPE_FLAGS from being unset when the keyboardType is
-      // default, null, or unsupported, and autocapitalize is on.
-      // Unsetting these flags breaks the autoCapitalize functionality.
-      unsettingFlagsBreaksAutocomplete = true;
     }
 
-    updateStagedInputTypeFlag(
-        view, (unsettingFlagsBreaksAutocomplete ? 0 : KEYBOARD_TYPE_FLAGS), flagsToSet);
+    updateStagedInputTypeFlag(view, InputType.TYPE_MASK_CLASS, flagsToSet);
     checkPasswordType(view);
   }