Feature/zpf (#564)

* iOS: fix memory leak of blur effect

* js: fix callback cause memory leak

doric-iOS/Example/Example/DemoLibrary.m

@@ -11,8 +11,11 @@ @interface DoricDemoPlugin : DoricNativePlugin
 
 @implementation DoricDemoPlugin
 - (void)test {
+}
+
+- (void)test2:(NSString *)val withPromise:(DoricPromise *)promise {
     dispatch_async(dispatch_get_main_queue(), ^{
-        ShowToast(@"Test called", DoricGravityCenter);
+        [promise resolve:nil];
     });
 }
 @end

doric-iOS/Example/Example/ViewController.m

@@ -46,10 +46,7 @@ - (void)viewDidLoad {
     [Doric registerLibrary:[DemoLibrary new]];
     [Doric enablePerformance:YES];
     [Doric enableRenderSnapshot:YES];
-}
 
-- (void)viewDidAppear:(BOOL)animated {
-    [super viewDidAppear:animated];
     [self.view addSubview:[[UITableView new] also:^(UITableView *it) {
         it.width = self.view.width;
         it.height = self.view.height;
@@ -59,6 +56,10 @@ - (void)viewDidAppear:(BOOL)animated {
     }]];
 }
 
+- (void)viewDidAppear:(BOOL)animated {
+    [super viewDidAppear:animated];
+}
+
 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
     return self.demoFilePaths.count;
 }