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dreampiggydreampiggy
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Merge pull request #77 from SDWebImage/bugfix_onSuccess_when_memory_cache_hit
Fix the issue that WebImage's onSuccess does not get called when memory cache hit for new created View Struct
2 parents 4336985 + f56c39a commit 7891347

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+60
-26
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6 files changed

+60
-26
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‎SDWebImageSwiftUI.xcodeproj/project.pbxproj‎

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@@ -28,6 +28,9 @@
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321C1D6B23DEDB98009CF62A /* WebImageTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3211F84F23DE98E300FC757F /* WebImageTests.swift */; };
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321C1D6C23DEDB98009CF62A /* AnimatedImageTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3211F84623DE984D00FC757F /* AnimatedImageTests.swift */; };
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321C1D6D23DEDB98009CF62A /* WebImageTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3211F84F23DE98E300FC757F /* WebImageTests.swift */; };
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322E0F4823E57F09006836DC /* TestUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 322E0F4723E57F09006836DC /* TestUtils.swift */; };
32+
322E0F4923E57F09006836DC /* TestUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 322E0F4723E57F09006836DC /* TestUtils.swift */; };
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322E0F4A23E57F09006836DC /* TestUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 322E0F4723E57F09006836DC /* TestUtils.swift */; };
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326B84822363350C0011BDFB /* Indicator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 326B84812363350C0011BDFB /* Indicator.swift */; };
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326B84832363350C0011BDFB /* Indicator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 326B84812363350C0011BDFB /* Indicator.swift */; };
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326B84842363350C0011BDFB /* Indicator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 326B84812363350C0011BDFB /* Indicator.swift */; };
@@ -160,6 +163,7 @@
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3211F85423DE9D2700FC757F /* Images.bundle */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.plug-in"; path = Images.bundle; sourceTree = "<group>"; };
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321C1D3B23DEC17D009CF62A /* SDWebImageSwiftUITests macOS.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = "SDWebImageSwiftUITests macOS.xctest"; sourceTree = BUILT_PRODUCTS_DIR; };
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321C1D4A23DEC185009CF62A /* SDWebImageSwiftUITests tvOS.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = "SDWebImageSwiftUITests tvOS.xctest"; sourceTree = BUILT_PRODUCTS_DIR; };
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322E0F4723E57F09006836DC /* TestUtils.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TestUtils.swift; sourceTree = "<group>"; };
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326B84812363350C0011BDFB /* Indicator.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Indicator.swift; sourceTree = "<group>"; };
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326B8486236335110011BDFB /* ActivityIndicator.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ActivityIndicator.swift; sourceTree = "<group>"; };
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326B848B236335400011BDFB /* ProgressIndicator.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ProgressIndicator.swift; sourceTree = "<group>"; };
@@ -259,6 +263,7 @@
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3211F84623DE984D00FC757F /* AnimatedImageTests.swift */,
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3211F84F23DE98E300FC757F /* WebImageTests.swift */,
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32BD9C4623E03B08008D5F6A /* IndicatorTests.swift */,
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322E0F4723E57F09006836DC /* TestUtils.swift */,
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);
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path = Tests;
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sourceTree = "<group>";
@@ -711,6 +716,7 @@
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3211F85023DE98E300FC757F /* WebImageTests.swift in Sources */,
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32BD9C4723E03B08008D5F6A /* IndicatorTests.swift in Sources */,
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3211F84723DE984D00FC757F /* AnimatedImageTests.swift in Sources */,
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322E0F4823E57F09006836DC /* TestUtils.swift in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};
@@ -721,6 +727,7 @@
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321C1D6B23DEDB98009CF62A /* WebImageTests.swift in Sources */,
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32BD9C4823E03B08008D5F6A /* IndicatorTests.swift in Sources */,
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321C1D6A23DEDB98009CF62A /* AnimatedImageTests.swift in Sources */,
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322E0F4923E57F09006836DC /* TestUtils.swift in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};
@@ -731,6 +738,7 @@
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321C1D6D23DEDB98009CF62A /* WebImageTests.swift in Sources */,
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32BD9C4923E03B08008D5F6A /* IndicatorTests.swift in Sources */,
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321C1D6C23DEDB98009CF62A /* AnimatedImageTests.swift in Sources */,
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322E0F4A23E57F09006836DC /* TestUtils.swift in Sources */,
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);
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runOnlyForDeploymentPostprocessing = 0;
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};

‎SDWebImageSwiftUI/Classes/ImageManager.swift‎

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@@ -19,6 +19,7 @@ class ImageManager : ObservableObject {
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weak var currentOperation: SDWebImageOperation? = nil
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var isSuccess: Bool = false // true means request for this URL is ended forever, load() do nothing
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var isIncremental: Bool = false // true means during incremental loading
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var isFirstLoad: Bool = true // false after first call `load()`
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var url: URL?
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var options: SDWebImageOptions
@@ -39,6 +40,7 @@ class ImageManager : ObservableObject {
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}
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func load() {
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isFirstLoad = false
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if currentOperation != nil {
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return
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}

‎SDWebImageSwiftUI/Classes/WebImage.swift‎

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@@ -58,13 +58,16 @@ public struct WebImage : View {
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}
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}
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self.imageManager = ImageManager(url: url, options: options, context: context)
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// load remote image here, SwiftUI sometimes will create a new View struct without calling `onAppear` (like enter EditMode) :)
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// this can ensure we load the image, SDWebImage take care of the duplicated query
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self.imageManager.load()
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}
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public var body: some View {
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Group {
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// load remote image when first called `body`, SwiftUI sometimes will create a new View struct without calling `onAppear` (like enter EditMode) :)
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// this can ensure we load the image, and display image synchronously when memory cache hit to avoid flashing
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// called once per struct, SDWebImage take care of the duplicated query
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if imageManager.isFirstLoad {
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imageManager.load()
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}
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return Group {
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if imageManager.image != nil {
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if isAnimating && !self.imageManager.isIncremental {
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if currentFrame != nil {

‎Tests/AnimatedImageTests.swift‎

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@@ -34,7 +34,7 @@ class AnimatedImageTests: XCTestCase {
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func testAnimatedImageWithName() throws {
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let expectation = self.expectation(description: "AnimatedImage name initializer")
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let imageView = AnimatedImage(name: "TestImage.gif", bundle: testImageBundle())
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let imageView = AnimatedImage(name: "TestImage.gif", bundle: TestUtils.testImageBundle())
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let introspectView = imageView.introspectAnimatedImage { animatedImageView in
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if let animatedImage = animatedImageView.image as? SDAnimatedImage {
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XCTAssertEqual(animatedImage.animatedImageLoopCount, 0)
@@ -51,7 +51,7 @@ class AnimatedImageTests: XCTestCase {
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func testAnimatedImageWithData() throws {
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let expectation = self.expectation(description: "AnimatedImage data initializer")
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let imageData = try XCTUnwrap(testImageData(name: "TestImageAnimated.apng"))
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let imageData = try XCTUnwrap(TestUtils.testImageData(name: "TestImageAnimated.apng"))
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let imageView = AnimatedImage(data: imageData)
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let introspectView = imageView.introspectAnimatedImage { animatedImageView in
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if let animatedImage = animatedImageView.image as? SDAnimatedImage {
@@ -91,7 +91,7 @@ class AnimatedImageTests: XCTestCase {
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let expectation = self.expectation(description: "AnimatedImage binding control")
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let binding = Binding<Bool>(wrappedValue: true)
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var context: AnimatedImage.Context?
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let imageView = AnimatedImage(name: "TestLoopCount.gif", bundle: testImageBundle(), isAnimating: binding)
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let imageView = AnimatedImage(name: "TestLoopCount.gif", bundle: TestUtils.testImageBundle(), isAnimating: binding)
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.onViewCreate { _, c in
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context = c
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}
@@ -171,22 +171,4 @@ class AnimatedImageTests: XCTestCase {
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self.waitForExpectations(timeout: 5, handler: nil)
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AnimatedImage.onViewDestroy()
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}
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// MARK: Helper
176-
func testBundle() -> Bundle {
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Bundle(for: type(of: self))
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}
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func testImageBundle() -> Bundle {
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let imagePath = (testBundle().resourcePath! as NSString).appendingPathComponent("Images.bundle")
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return Bundle(path: imagePath)!
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}
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185-
func testImageData(name: String) -> Data? {
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guard let url = testImageBundle().url(forResource: name, withExtension: nil) else {
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return nil
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}
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return try? Data(contentsOf: url)
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}
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}

‎Tests/TestUtils.swift‎

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@@ -0,0 +1,18 @@
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import XCTest
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import SwiftUI
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class TestUtils {
5+
static var testBundle = Bundle(for: TestUtils.self)
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7+
class func testImageBundle() -> Bundle {
8+
let imagePath = (testBundle.resourcePath! as NSString).appendingPathComponent("Images.bundle")
9+
return Bundle(path: imagePath)!
10+
}
11+
12+
class func testImageData(name: String) -> Data? {
13+
guard let url = testImageBundle().url(forResource: name, withExtension: nil) else {
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return nil
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}
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return try? Data(contentsOf: url)
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}
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}

‎Tests/WebImageTests.swift‎

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@@ -15,7 +15,6 @@ class WebImageTests: XCTestCase {
1515
override func tearDown() {
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// Put teardown code here. This method is called after the invocation of each test method in the class.
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super.tearDown()
18-
SDImageCache.shared.clear(with: .all)
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}
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func testWebImageWithStaticURL() throws {
@@ -107,4 +106,26 @@ class WebImageTests: XCTestCase {
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self.waitForExpectations(timeout: 5, handler: nil)
108107
}
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109+
func testWebImageOnSuccessWhenMemoryCacheHit() throws {
110+
let expectation = self.expectation(description: "WebImage onSuccess when memory hit")
111+
let imageUrl = URL(string: "https://foo.bar/buzz.png")
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let cacheKey = SDWebImageManager.shared.cacheKey(for: imageUrl)
113+
#if os(macOS)
114+
let testImage = TestUtils.testImageBundle().image(forResource: "TestImage")
115+
#else
116+
let testImage = UIImage(named: "TestImage", in: TestUtils.testImageBundle(), compatibleWith: nil)
117+
#endif
118+
SDImageCache.shared.storeImage(toMemory: testImage, forKey: cacheKey)
119+
let imageView = WebImage(url: imageUrl)
120+
let introspectView = imageView.onSuccess { image, cacheType in
121+
XCTAssert(cacheType == .memory)
122+
XCTAssertNotNil(image)
123+
XCTAssertEqual(image, testImage)
124+
expectation.fulfill()
125+
}
126+
_ = try introspectView.inspect(WebImage.self)
127+
ViewHosting.host(view: introspectView)
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self.waitForExpectations(timeout: 5, handler: nil)
129+
}
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}

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