TypeScript image-source.fromAsset函数代码示例

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本文整理汇总了TypeScript中tns-core-modules/image-source.fromAsset函数的典型用法代码示例。如果您正苦于以下问题：TypeScript fromAsset函数的具体用法？TypeScript fromAsset怎么用？TypeScript fromAsset使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了fromAsset函数的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的TypeScript代码示例。

示例1: testFromAssetWithExactScaling

export function testFromAssetWithExactScaling(done) {
    let asset = new imageAssetModule.ImageAsset(splashscreenPath);
    let scaleWidth = 10;
    let scaleHeight = 11;
    asset.options = {
        width: scaleWidth,
        height: scaleHeight,
        keepAspectRatio: false,
        autoScaleFactor: false
    };

    imageSource.fromAsset(asset).then((source) => {
        TKUnit.assertEqual(source.width, scaleWidth);
        TKUnit.assertEqual(source.height, scaleHeight);

        const targetFilename = `splashscreenTemp.png`;
        const tempPath = fs.knownFolders.temp().path;
        const localFullPath = fs.path.join(tempPath, targetFilename);

        const fullImageSaved = source.saveToFile(localFullPath, "png");

        if (fullImageSaved) {
            let sourceImage = new imageSource.ImageSource();
            sourceImage.fromFile(localFullPath).then(() => {
                TKUnit.assertEqual(sourceImage.width, scaleWidth);
                TKUnit.assertEqual(sourceImage.height, scaleHeight);
                done();
            });
        } else {
            done(`Error saving photo to local temp folder: ${localFullPath}`);
        }
    }, (error) => {
        done(error);
    });
}

开发者ID:NathanWalker，项目名称:NativeScript，代码行数:35，代码来源:image-source-tests.ts

示例2: testFromAssetFileNotFound

export function testFromAssetFileNotFound(done) {
    let asset = new imageAssetModule.ImageAsset("invalidFile.png");
    asset.options = {
        width: 0,
        height: 0,
        keepAspectRatio: true
    };

    let img = imageSource.fromAsset(asset).then((source) => {
        done("Should not resolve with invalid file name.");
    }, (error) => {
        TKUnit.assertNotNull(error);
        done();
    });
}

开发者ID:NathanWalker，项目名称:NativeScript，代码行数:15，代码来源:image-source-tests.ts

示例3: testFromAssetWithScalingAndDefaultAspectRatio

export function testFromAssetWithScalingAndDefaultAspectRatio(done) {
    let asset = new imageAssetModule.ImageAsset(splashscreenPath);
    let scaleWidth = 10;
    let scaleHeight = 11;
    asset.options.width = scaleWidth;
    asset.options.height = scaleHeight;

    let img = imageSource.fromAsset(asset).then((source) => {
        TKUnit.assertEqual(source.width, 18);
        TKUnit.assertEqual(source.height, scaleHeight);
        done();
    }, (error) => {
        done(error);
    });
}

开发者ID:NathanWalker，项目名称:NativeScript，代码行数:15，代码来源:image-source-tests.ts

示例4: testFromAssetSimple

export function testFromAssetSimple(done) {
    let asset = new imageAssetModule.ImageAsset(splashscreenPath);
    asset.options = {
        width: 0,
        height: 0,
        keepAspectRatio: true
    };

    let img = imageSource.fromAsset(asset).then((source) => {
        TKUnit.assertEqual(source.width, splashscreenWidth);
        TKUnit.assertEqual(source.height, splashscreenHeight);
        done();
    }, (error) => {
        done(error);
    });
}

开发者ID:NathanWalker，项目名称:NativeScript，代码行数:16，代码来源:image-source-tests.ts

示例5: testFromAssetWithBiggerScaling

export function testFromAssetWithBiggerScaling(done) {
    let asset = new imageAssetModule.ImageAsset(splashscreenPath);
    let scaleWidth = 600;
    let scaleHeight = 600;
    asset.options = {
        width: scaleWidth,
        height: scaleHeight,
        keepAspectRatio: false
    };

    let img = imageSource.fromAsset(asset).then((source) => {
        TKUnit.assertEqual(source.width, scaleWidth);
        TKUnit.assertEqual(source.height, scaleHeight);
        done();
    }, (error) => {
        done(error);
    });
}

开发者ID:NathanWalker，项目名称:NativeScript，代码行数:18，代码来源:image-source-tests.ts

注：本文中的tns-core-modules/image-source.fromAsset函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。