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Feature/add decimal pad to android (#19714)

Summary:
For a current use-case we need the a keyboard with characters 0-9 and a decimal point (or comma depending on language settings)

This exists on iOS as UIKeyboardType "decimalPad" and this is what react-native maps to for both "numeric" and "decimal-pad". This also exists on Android as inputType "numberDecimal", but is currently not accessible through react-native.

This PR maps the value "decimal-pad" of the keyboardType property of TextInput to the Android inputType "numberDecimal", effectively making "decimal-pad" cross platform without breaking anything.

* https://facebook.github.io/react-native/docs/textinput.html#keyboardtype
* https://developer.apple.com/documentation/uikit/uikeyboardtype
* https://developer.android.com/reference/android/widget/TextView#attr_android:inputType

There is this bug in some Samsung keyboards where both the - sign and decimal sign disappear when the keyboardType is set to "number" and both the "signed" and "decimal" flags are set. (Like is the case when using the react-native keyboardType prop "numeric".) https://androidforums.com/threads/numeric-soft-keyboard-missing-minus-sign-in-android-8-0-samsung-a5.1272628/

For developers that need decimal numbers but not negative ones, using "decimal-pad" will provide a workaround. I reproduced this on a Samsung A5 only, but maybe other phones have this exact issue. #12988 #12977 #17473 #17474

* Added testcase consistent with existing keyboardType tests
* Also added testcase for the related, but missing number-pad

This PR follows the same approach as the recently merged PR introducing "number-pad" b638847

Documentation PR: facebook/react-native-website#405

 [ANDROID] [ENHANCEMENT] [TextInput] - Added "decimal-pad" keyboard type
Closes #19714

Differential Revision: D8429185

Pulled By: mdvacca

fbshipit-source-id: 6b56da2088f2be427ebffa04c4e17c91ffb9f7d9
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JPanneel authored and grabbou committed Jun 14, 2018
1 parent b348aa1 commit 5b7a817723e626453eedc800e71a4babd256218f
@@ -86,12 +86,12 @@ export type KeyboardType =
| 'numeric'
| 'phone-pad'
| 'number-pad'
| 'decimal-pad'
// iOS-only
| 'ascii-capable'
| 'numbers-and-punctuation'
| 'url'
| 'name-phone-pad'
| 'decimal-pad'
| 'twitter'
| 'web-search'
// Android-only
@@ -388,6 +388,7 @@ const TextInput = createReactClass({
* - `default`
* - `numeric`
* - `number-pad`
* - `decimal-pad`
* - `email-address`
* - `phone-pad`
*
@@ -399,7 +400,6 @@ const TextInput = createReactClass({
* - `numbers-and-punctuation`
* - `url`
* - `name-phone-pad`
* - `decimal-pad`
* - `twitter`
* - `web-search`
*
@@ -70,8 +70,9 @@
private static final int BLUR_TEXT_INPUT = 2;
private static final int INPUT_TYPE_KEYBOARD_NUMBER_PAD = InputType.TYPE_CLASS_NUMBER;
private static final int INPUT_TYPE_KEYBOARD_NUMBERED = INPUT_TYPE_KEYBOARD_NUMBER_PAD |
InputType.TYPE_NUMBER_FLAG_DECIMAL |
private static final int INPUT_TYPE_KEYBOARD_DECIMAL_PAD = INPUT_TYPE_KEYBOARD_NUMBER_PAD |
InputType.TYPE_NUMBER_FLAG_DECIMAL;
private static final int INPUT_TYPE_KEYBOARD_NUMBERED = 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;
@@ -82,6 +83,7 @@
private static final String KEYBOARD_TYPE_EMAIL_ADDRESS = "email-address";
private static final String KEYBOARD_TYPE_NUMERIC = "numeric";
private static final String KEYBOARD_TYPE_DECIMAL_PAD = "decimal-pad";
private static final String KEYBOARD_TYPE_NUMBER_PAD = "number-pad";
private static final String KEYBOARD_TYPE_PHONE_PAD = "phone-pad";
private static final String KEYBOARD_TYPE_VISIBLE_PASSWORD = "visible-password";
@@ -567,6 +569,8 @@ public void setKeyboardType(ReactEditText view, @Nullable String keyboardType) {
flagsToSet = INPUT_TYPE_KEYBOARD_NUMBERED;
} else if (KEYBOARD_TYPE_NUMBER_PAD.equalsIgnoreCase(keyboardType)) {
flagsToSet = INPUT_TYPE_KEYBOARD_NUMBER_PAD;
} else if (KEYBOARD_TYPE_DECIMAL_PAD.equalsIgnoreCase(keyboardType)) {
flagsToSet = INPUT_TYPE_KEYBOARD_DECIMAL_PAD;
} else if (KEYBOARD_TYPE_EMAIL_ADDRESS.equalsIgnoreCase(keyboardType)) {
flagsToSet = InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS | InputType.TYPE_CLASS_TEXT;
} else if (KEYBOARD_TYPE_PHONE_PAD.equalsIgnoreCase(keyboardType)) {
@@ -231,6 +231,8 @@ public void testNumLines() {
@Test
public void testKeyboardType() {
ReactEditText view = mManager.createViewInstance(mThemedContext);
int numberPadTypeFlags = InputType.TYPE_CLASS_NUMBER;
int decimalPadTypeFlags = InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL;
int numericTypeFlags =
InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL |
InputType.TYPE_NUMBER_FLAG_SIGNED;
@@ -249,6 +251,12 @@ public void testKeyboardType() {
mManager.updateProperties(view, buildStyles("keyboardType", "text"));
assertThat(view.getInputType() & generalKeyboardTypeFlags).isEqualTo(InputType.TYPE_CLASS_TEXT);
mManager.updateProperties(view, buildStyles("keyboardType", "number-pad"));
assertThat(view.getInputType() & generalKeyboardTypeFlags).isEqualTo(numberPadTypeFlags);
mManager.updateProperties(view, buildStyles("keyboardType", "decimal-pad"));
assertThat(view.getInputType() & generalKeyboardTypeFlags).isEqualTo(decimalPadTypeFlags);
mManager.updateProperties(view, buildStyles("keyboardType", "numeric"));
assertThat(view.getInputType() & generalKeyboardTypeFlags).isEqualTo(numericTypeFlags);

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