clear() method added

application-settings/application-settings.android.ts

@@ -74,3 +74,8 @@ export var remove = function (key: string): void {
     editor.remove(key);
     editor.commit();
 }
+
+export var clear = function (): void {
+    ensureSharedPreferences();
+    sharedPreferences.edit().clear().commit();
+}

application-settings/application-settings.d.ts

@@ -55,4 +55,9 @@ declare module "application-settings" {
     * @param key The key to check for.
     */
     export function remove(key: string): void;
+
+    /**
+     * Removes all values.
+     */
+    export function clear(): void;
 }

application-settings/application-settings.ios.ts

@@ -59,3 +59,7 @@ export var remove = function (key: string): void {
     userDefaults.removeObjectForKey(key);
     userDefaults.synchronize();
 }
+
+export var clear = function (): void {
+    userDefaults.removePersistentDomainForName(NSBundle.mainBundle().bundleIdentifier);
+}

apps/tests/application-settings-tests.ts

@@ -123,6 +123,18 @@ export var testRemove = function () {
     TKUnit.assert(!appSettings.hasKey(numberKey), "Failed to remove key: " + numberKey);
 };
 
+export var testClear = function () {
+    // <snippet module="application-settings" title="application-settings">
+    // ### Removing all values
+    // ``` JavaScript
+    appSettings.clear();
+    // ```
+    // </snippet>
+    TKUnit.assert(!appSettings.hasKey(boolKey), "Failed to remove key: " + boolKey);
+    TKUnit.assert(!appSettings.hasKey(stringKey), "Failed to remove key: " + stringKey);
+    TKUnit.assert(!appSettings.hasKey(numberKey), "Failed to remove key: " + numberKey);
+};
+
 export var testInvalidKey = function () {
     try {
         appSettings.hasKey(undefined);