This content originally appeared on DEV Community and was authored by 桃花镇童长老
Introduction and description of harmony-utils
harmony-utils A HarmonyOS tool library with rich features and extremely easy to use, with the help of many practical tools, is committed to helping developers quickly build Hongmeng applications. Its encapsulated tools cover APP, device, screen, authorization, notification, inter-thread communication, pop-up frames, toast, biometric authentication, user preferences, taking photos, albums, scanning codes, files, logs, exception capture, characters, strings, numbers, collections, dates, random, base64, encryption, decryption, JSON and other functions, which can meet various development needs.
picker_utils It is a sub-store split by harmony-utils, including PickerUtil, PhotoHelper, and ScanUtil.
Download and install
ohpm i @pura/harmony-utils
ohpm i @pura/picker_utils
//Global initialization method, initialized in the onCreate method of UIAbility AppUtil.init()a
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
AppUtil.init(this.context);
}
API methods and usage
getResourceManager gets the ability to provide access to application resources
let resourceManager = ResUtil.getResourceManager();
getBoolean Gets the boolean result corresponding to the specified resource
let b1 = ResUtil.getBoolean($r('app.boolean.bl_debug'));
let b2 = ResUtil.getBoolean($r('app.boolean.bl_debug').id);
getBooleanByName Gets the boolean result corresponding to the specified resource name
let b4 = ResUtil.getBooleanByName('bl_agree');
getNumber Gets the integer value or float value corresponding to the specified resource
let num1 = ResUtil.getNumber($r('app.integer.count'));
let num2 = ResUtil.getNumber($r('app.integer.age').id);
getNumberByName Gets the integer value or float value corresponding to the specified resource name
let num3 = ResUtil.getNumberByName('count');
getStringValue Gets the string corresponding to the specified resource
let str3 = await ResUtil.getStringValue($r('app.string.app_name'));
getStringSync Gets the string corresponding to the specified resource name
let str1 = ResUtil.getStringSync($r('app.string.str_desc'));
let str2 = ResUtil.getStringSync($r('app.string.module_desc').id);
getStringByName Gets the string corresponding to the specified resource name
let str5 = ResUtil.getStringByNameSync('module_desc');
let str6 = await ResUtil.getStringByName('app_name');
getStringArrayValue Gets the string array corresponding to the specified resource
let strArray1 = ResUtil.getStringArrayValueSync($r('app.strarray.font_size'));
let strArray2 = await ResUtil.getStringArrayValue($r('app.strarray.font_size').id);
getStringArrayByName Gets the string array corresponding to the specified resource name
let strArray3 = ResUtil.getStringArrayByNameSync("font_size");
let strArray4 = await ResUtil.getStringArrayByName("font_size");
getPluralStringValue Gets a single-plural numeric string represented by the specified resource object based on the specified number
let str1 = ResUtil.getPluralStringValueSync($r('app.plural.eat_apple'), 1);
let str2 = await ResUtil.getPluralStringValue($r('app.plural.eat_apple'), 2);
getPluralStringByName Gets a single-plural string represented by the specified resource name based on the specified number
let str3 = ResUtil.getPluralStringByNameSync("eat_apple", 11);
let str4 = await ResUtil.getPluralStringByName("eat_apple", 0);
getColor Gets the color value corresponding to the specified resource (decimal)
let color1 = ResUtil.getColorSync($r('app.color.color_main'));
let color2 = await ResUtil.getColor($r('app.color.color_99'));
getColorByName Gets the color value corresponding to the specified resource name (decimal)
let color3 = ResUtil.getColorByNameSync("color_main");
let color4 = await ResUtil.getColorByName("color_99");
getMediaContent Gets the default or specified screen density media file content for the specified resource
let uint8Array1 = ResUtil.getMediaContentSync($r('app.media.test_as1'));
let uint8Array2 = await ResUtil.getMediaContent($r('app.media.test_as4'));
getMediaByName Gets the default or specified screen density media file content corresponding to the specified resource name
let uint8Array3 = ResUtil.getMediaByNameSync("test_as2");
let uint8Array4 = await ResUtil.getMediaByName("test_as5");
getMediaContentBase64 Get the default or specified screen density picture resource Base64 encoding corresponding to the specified resource ID
let str1 = ResUtil.getMediaContentBase64Sync($r('app.media.test_as1'));
let str2 = await ResUtil.getMediaContentBase64($r('app.media.test_as4'));
getMediaBase64ByName Gets the default or specified screen density picture resource Base64 encoding corresponding to the specified resource name
let str3 = ResUtil.getMediaBase64ByNameSync("test_as2");
let str4 = await ResUtil.getMediaBase64ByName("test_as5");
getRawFileContent Get the content of the corresponding rawfile file in the resources/rawfile directory
let uint8Array1 = ResUtil.getRawFileContentSync('demo/demo.txt');
let uint8Array2 = await ResUtil.getRawFileContent('data_utils.json');
getRawFileContentStr Gets the content of the corresponding rawfile file in the resources/rawfile directory (string)
let str3 = ResUtil.getRawFileContentStrSync("demo/demo.txt");
let str4 = await ResUtil.getRawFileContentStr("demo/test.txt");
getRawFileList Gets the folder and file list in the resources/rawfile directory (if there is no file in the folder, it will not be returned; if there is a file in the folder, it will return the folder and file list)
let list1 = ResUtil.getRawFileListSync('demo');
let list2 = await ResUtil.getRawFileList("");
getRawFd user obtains the descriptor information of the corresponding rawfile file in the resources/rawfile directory
let rawFileDescriptor = await ResUtil.getRawFd("test.txt");
closeRawFd User closes the descriptor information of the rawfile file in the resources/rawfile directory
ResUtil.closeRawFd("test.txt");
addResource When the application is running, the specified resource path is loaded to achieve resource coverage
let path = AppUtil.getContext().bundleCodeDir + "/library-default-signed.hsp";
ResUtil.addResource(path);
When the removeResource user runs, removes the specified resource path and restores the resource before being overwritten.
let path = AppUtil.getContext().bundleCodeDir + "/library-default-signed.hsp";
ResUtil.removeResource(path);
isRawDir User determines whether the specified path is a directory under rawfile (true: means it is a directory under rawfile, false: means it is not a directory under rawfile)
let isRawDir = ResUtil.isRawDir("demo");
let isRawDir2 = ResUtil.isRawDir("test.txt");
getConfiguration Gets the configuration of the device
let configuration = ResUtil.getConfigurationSync();
getDeviceCapability Get the DeviceCapability of the device
let deviceCapability = ResUtil.getDeviceCapabilitySync();
This content originally appeared on DEV Community and was authored by 桃花镇童长老