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Provide forceRTL for LTR language to test

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Summary:
Provide forceRTL function for developer to test RTL layout in LTR language bundle in I18nUtil and expose it in I18nManager.
Rename allowRTL and setAllowRTL functions

Differential Revision: D3673601

fbshipit-source-id: 98f9c99e8a6948336fb918c24566dc9e5c0a3a3e
This commit is contained in:
Mengjue Wang
2016-08-05 13:14:29 -07:00
committed by Facebook Github Bot 6
parent f571f016d9
commit 9de0b79e87
2 changed files with 47 additions and 9 deletions
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10
ReactAndroid/src/main/java/com/facebook/react/modules/i18nmanager/I18nManagerModule.java
View File

@@ -46,7 +46,15 @@ public class I18nManagerModule extends ReactContextBaseJavaModule {
@ReactMethod
public void allowRTL(boolean value) {
sharedI18nUtilInstance.setAllowRTL(
sharedI18nUtilInstance.allowRTL(
getReactApplicationContext(),
value
);
}
@ReactMethod
public void forceRTL(boolean value) {
sharedI18nUtilInstance.forceRTL(
getReactApplicationContext(),
value
);

46
ReactAndroid/src/main/java/com/facebook/react/modules/i18nmanager/I18nUtil.java
View File

@@ -22,8 +22,10 @@ public class I18nUtil {
private static final String MY_PREFS_NAME =
"com.facebook.react.modules.i18nmanager.I18nUtil";
private static final String KEY_FOR_PREFS =
private static final String KEY_FOR_PREFS_ALLOWRTL =
"RCTI18nUtil_allowRTL";
private static final String KEY_FOR_PREFS_FORCERTL =
"RCTI18nUtil_forceRTL";
private I18nUtil() {
// Exists only to defeat instantiation.
@@ -36,23 +38,51 @@ public class I18nUtil {
return sharedI18nUtilInstance;
}
// If the current device language is RTL and RTL is allowed for the app,
// the RN app will automatically have a RTL layout.
/**
* Check if the device is currently running on an RTL locale.
* This only happens when the app:
* - is forcing RTL layout, regardless of the active language (for development purpose)
* - allows RTL layout when using RTL locale
*/
public boolean isRTL(Context context) {
return allowRTL(context) &&
if (isRTLForced(context)) {
return true;
}
return isRTLAllowed(context) &&
isDevicePreferredLanguageRTL();
}
private boolean allowRTL(Context context) {
/**
* Should be used very early during app start up
* Before the bridge is initialized
*/
private boolean isRTLAllowed(Context context) {
SharedPreferences prefs =
context.getSharedPreferences(MY_PREFS_NAME, Context.MODE_PRIVATE);
return prefs.getBoolean(KEY_FOR_PREFS, false);
return prefs.getBoolean(KEY_FOR_PREFS_ALLOWRTL, false);
}
public void setAllowRTL(Context context, boolean allowRTL) {
public void allowRTL(Context context, boolean allowRTL) {
SharedPreferences.Editor editor =
context.getSharedPreferences(MY_PREFS_NAME, Context.MODE_PRIVATE).edit();
editor.putBoolean(KEY_FOR_PREFS, allowRTL);
editor.putBoolean(KEY_FOR_PREFS_ALLOWRTL, allowRTL);
editor.apply();
}
/**
* Could be used to test RTL layout with English
* Used for development and testing purpose
*/
private boolean isRTLForced(Context context) {
SharedPreferences prefs =
context.getSharedPreferences(MY_PREFS_NAME, Context.MODE_PRIVATE);
return prefs.getBoolean(KEY_FOR_PREFS_FORCERTL, false);
}
public void forceRTL(Context context, boolean allowRTL) {
SharedPreferences.Editor editor =
context.getSharedPreferences(MY_PREFS_NAME, Context.MODE_PRIVATE).edit();
editor.putBoolean(KEY_FOR_PREFS_FORCERTL, allowRTL);
editor.apply();
}