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fix(iOS): WKWebView RetainCycle (#1096)

sunzhongliang 4 anni fa
parent
commit
4f4644ffd8
2 ha cambiato i file con 26 aggiunte e 2 eliminazioni
  1. 5
    0
      ios/RNCWebView.h
  2. 21
    2
      ios/RNCWebView.m

+ 5
- 0
ios/RNCWebView.h Vedi File

@@ -19,6 +19,11 @@
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 @end
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+@interface RNCWeakScriptMessageDelegate : NSObject<WKScriptMessageHandler>
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+@property (nonatomic, weak) id<WKScriptMessageHandler> scriptDelegate;
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+- (instancetype)initWithDelegate:(id<WKScriptMessageHandler>)scriptDelegate;
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+@end
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+
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 @interface RNCWebView : RCTView
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 @property (nonatomic, weak) id<RNCWebViewDelegate> _Nullable delegate;

+ 21
- 2
ios/RNCWebView.m Vedi File

@@ -162,7 +162,8 @@ static NSDictionary* customCertificatesForHost;
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     wkWebViewConfig.userContentController = [WKUserContentController new];
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     // Shim the HTML5 history API:
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-    [wkWebViewConfig.userContentController addScriptMessageHandler:self name:HistoryShimName];
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+    [wkWebViewConfig.userContentController addScriptMessageHandler:[[RNCWeakScriptMessageDelegate alloc] initWithDelegate:self]
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+                                                              name:HistoryShimName];
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     NSString *source = [NSString stringWithFormat:
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       @"(function(history) {\n"
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       "  function notify(type) {\n"
@@ -187,7 +188,8 @@ static NSDictionary* customCertificatesForHost;
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     [wkWebViewConfig.userContentController addUserScript:script];
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     if (_messagingEnabled) {
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-      [wkWebViewConfig.userContentController addScriptMessageHandler:self name:MessageHandlerName];
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+      [wkWebViewConfig.userContentController addScriptMessageHandler:[[RNCWeakScriptMessageDelegate alloc] initWithDelegate:self]
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+                                                                name:MessageHandlerName];
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       NSString *source = [NSString stringWithFormat:
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         @"window.%@ = {"
@@ -1077,3 +1079,20 @@ static NSDictionary* customCertificatesForHost;
1077 1079
 }
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 @end
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+
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+@implementation RNCWeakScriptMessageDelegate
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+
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+- (instancetype)initWithDelegate:(id<WKScriptMessageHandler>)scriptDelegate {
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+    self = [super init];
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+    if (self) {
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+        _scriptDelegate = scriptDelegate;
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+    }
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+    return self;
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+}
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+
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+- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
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+    [self.scriptDelegate userContentController:userContentController didReceiveScriptMessage:message];
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+}
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+
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+@end
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+