本文整理汇总了TypeScript中tns-core-modules/image-source.ImageSource类的典型用法代码示例。如果您正苦于以下问题：TypeScript ImageSource类的具体用法？TypeScript ImageSource怎么用？TypeScript ImageSource使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ImageSource类的7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，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: imageSourceFromAsset
export function imageSourceFromAsset(imageAsset){
let source = new imageSource.ImageSource();
source.fromAsset(imageAsset).then((source) => {
let folder = fs.knownFolders.documents().path;
let fileName = "test.png"
let path = fs.path.join(folder, fileName);
let saved = source.saveToFile(path, "png");
if(saved){
console.log("saved image")
}
})
}示例2:
.then((imageAsset) => {
let source = new imageSource.ImageSource();
source.fromAsset(imageAsset).then((source) => {
this.imageCropper.show(source,{width:100,height:100}).then((args) => {
if(args.image !== null){
this.imageUrl = args.image;
}
})
.catch(function(e){
console.log(e);
});
});
}).catch((err) => {示例3: function
const onResult = function(args) {
const requestCode = args.requestCode;
const resultCode = args.resultCode;
const data = args.intent;
// var _that = this;
if (resultCode === android.app.Activity.RESULT_OK && requestCode === com.yalantis.ucrop.UCrop.REQUEST_CROP) {
const resultUri: android.net.Uri = com.yalantis.ucrop.UCrop.getOutput(data);
const is: ImageSource = new ImageSource();
try {
is.setNativeSource(android.graphics.BitmapFactory.decodeFile(resultUri.getPath()));
} catch (e) {
console.error(e);
}
ImageCropper._cleanFiles();
application.android.off(application.AndroidApplication.activityResultEvent, onResult);
if (is.android) {
resolve({
response: "Success",
image: is,
});
} else {
reject({
response: "Error",
image: null
});
}
return;
}
else if (resultCode === android.app.Activity.RESULT_CANCELED && requestCode === com.yalantis.ucrop.UCrop.REQUEST_CROP) {
ImageCropper._cleanFiles();
application.android.off(application.AndroidApplication.activityResultEvent, onResult);
resolve({
response: "Cancelled",
image: null
});
return;
}
else if (resultCode === com.yalantis.ucrop.UCrop.RESULT_ERROR) {
ImageCropper._cleanFiles();
const cropError: java.lang.Throwable = com.yalantis.ucrop.UCrop.getError(data);
console.log(cropError.getMessage());
application.android.off(application.AndroidApplication.activityResultEvent, onResult);
reject({
response: "Error",
image: null
});
return;
}
};示例4: constructor
constructor() {
super();
let asset = new imageAssetModule.ImageAsset("~/splashscreen.png");
asset.options = {
width: 300,
height: 300,
keepAspectRatio: true
};
let source = new ImageSource();
source.fromAsset(asset).then((source) => {
this.set("cameraImageAsset", asset);
this.set("cameraImageSrc", source);
}, (error) => {
console.log(error);
});
}示例5: _storeImageSource
private static _storeImageSource(image: ImageSource): string {
const folder: fs.Folder = fs.knownFolders.temp();
const path = fs.path.join(folder.path, "temp.jpeg");
if (image.saveToFile(path, "jpeg", 100)) {
return path;
}
else {
return null;
}
}示例6: done
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) => {示例7: onSrcPropertySet
public static onSrcPropertySet(nativeWrapper, value) {
let image = nativeWrapper,
placeholder = nativeWrapper.placeholder,
placeholderImage = this.getPlaceholderUIImage(placeholder);
if (types.isString(value)) {
value = value.trim();
if (0 === value.indexOf("http")) {
image.isLoading = true;
image.nativeView.sd_setImageWithURLPlaceholderImageCompleted(value, placeholderImage, function() {
image.isLoading = false;
});
} else if (utils.isFileOrResourcePath(value)) {
image.isLoading = true;
let source: any = new imageSource.ImageSource();
if (0 === value.indexOf(utils.RESOURCE_PREFIX)) {
let path = value.substr(utils.RESOURCE_PREFIX.length);
source.fromResource(path).then(function() {
image.isLoading = false;
image.nativeView.image = source.ios || source.nativeView;
});
} else {
source.fromFile(value).then(function() {
image.isLoading = false;
image.nativeView.image = source.ios || source.nativeView;
});
}
}
image.requestLayout();
}
}