本文整理汇总了TypeScript中tns-core-modules/file-system.knownFolders类的典型用法代码示例。如果您正苦于以下问题：TypeScript knownFolders类的具体用法？TypeScript knownFolders怎么用？TypeScript knownFolders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knownFolders类的10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: function
export var test_getContentAsFile = function (done) {
var result;
// >> http-get-urlfile-content
var filePath = fs.path.join(fs.knownFolders.documents().path, "test.png");
http.getFile("https://httpbin.org/image/png?testQuery=query&anotherParam=param", filePath).then(function (r) {
//// Argument (r) is File!
// >> (hide)
result = r;
try {
TKUnit.assert(result instanceof fs.File, "Result from getFile() should be valid File object!");
done(null);
}
catch (err) {
done(err);
}
// << (hide)
}, function (e) {
//// Argument (e) is Error!
// >> (hide)
done(e);
// << (hide)
});
// << http-get-urlfile-content
};示例2: getPlaceholderImageDrawable
public static getPlaceholderImageDrawable(value) {
let fileName = "",
drawable = null;
if (types.isString(value)) {
value = value.trim();
if (utils.isFileOrResourcePath(value)) {
if (0 === value.indexOf("~/")) {
fileName = fs.path.join(fs.knownFolders.currentApp().path, value.replace("~/", ""));
drawable = android.graphics.drawable.Drawable.createFromPath(fileName);
} else if (0 === value.indexOf("res")) {
fileName = value;
let res = utils.ad.getApplicationContext().getResources();
let resName = fileName.substr(utils.RESOURCE_PREFIX.length);
let identifier = res.getIdentifier(resName, 'drawable', utils.ad.getApplication().getPackageName());
drawable = res.getDrawable(identifier);
}
}
}
return drawable;
}示例3: testSaveToFile_WithQuality
export function testSaveToFile_WithQuality() {
const img = imageSource.fromFile(imagePath);
const folder = fs.knownFolders.documents();
const path = fs.path.join(folder.path, "test.png");
const saved = img.saveToFile(path, "png", 70);
TKUnit.assert(saved, "Image not saved to file");
TKUnit.assert(fs.File.exists(path), "Image not saved to file");
}示例4:
source.fromAsset(imageAsset).then((imageSource) => {
let folder = fs.knownFolders.documents().path;
let fileName = "test.png";
let path = fs.path.join(folder, fileName);
let saved = imageSource.saveToFile(path, "png");
if (saved) {
console.log("Image saved successfully!");
}
})示例5:
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6: testSaveToFile
export function testSaveToFile() {
// >> imagesource-save-to
const img = imageSource.fromFile(imagePath);
const folder = fs.knownFolders.documents();
const path = fs.path.join(folder.path, "test.png");
const saved = img.saveToFile(path, "png");
// << imagesource-save-to
TKUnit.assert(saved, "Image not saved to file");
TKUnit.assert(fs.File.exists(path), "Image not saved to file");
}示例7: _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8: toFile
http.request({ url: "https://raw.githubusercontent.com/NativeScript/NativeScript/master/tests/app/logo.png", method: "GET" }).then(function (response) {
const filePath = fs.path.join(fs.knownFolders.temp().path, "test", "some", "path", "logo.png");
result = response.content.toFile(filePath);
try {
TKUnit.assert(result instanceof fs.File, "Result from toFile() should be valid File object!");
TKUnit.assert(result.size > 0, "result from to file should be greater than 0 in size");
done(null);
}
catch (err) {
done(err);
}
}, function (e) {示例9: testFromFile
export function testFromFile() {
// >> imagesource-load-local
const folder = fs.knownFolders.documents();
const path = fs.path.join(folder.path, "test.png");
const img = imageSource.fromFile(path);
// << imagesource-load-local
TKUnit.assert(img.height > 0, "image.fromResource failed");
// remove the image from the file system
const file = folder.getFile("test.png");
file.remove();
TKUnit.assert(!fs.File.exists(path), "test.png not removed");
}示例10: _setSrcProperty
private _setSrcProperty(value: string) {
if (value) {
value = value.trim();
let isUrl = false;
if (value.indexOf('://') !== -1) {
if (value.indexOf('res://') === -1) {
isUrl = true;
}
}
this._src = value;
if (!isUrl) {
const currentPath = knownFolders.currentApp().path;
if (value[1] === '/' && (value[0] === '.' || value[0] === '~')) {
value = value.substr(2);
}
if (value[0] !== '/') {
value = currentPath + '/' + value;
}
this._drawable = new pl.droidsonroids.gif.GifDrawable(value);
this.nativeView.setImageDrawable(this._drawable);
} else {
const requestOptions: any = { url: value, method: 'GET' };
if (this._headers !== null) {
requestOptions.headers = this._headers;
}
HttpRequest(requestOptions).then(
r => {
if (r.statusCode === 200) {
this._drawable = new pl.droidsonroids.gif.GifDrawable(
r.content.raw.toByteArray()
);
this.nativeView.setImageDrawable(this._drawable);
} else {
console.log('error getting image: ' + r.statusCode);
}
},
err => {
console.log(err);
}
);
}
} else {
console.log('No src property set for the Gif.');
}
}