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2026-09-24 16:25:22 +08:00
commit 7428184f01
1198 changed files with 314515 additions and 0 deletions
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+import Context from "android.content.Context"
+import Bitmap from "android.graphics.Bitmap"
+import BitmapFactory from "android.graphics.BitmapFactory"
+import Base64 from "android.util.Base64"
+import File from "java.io.File"
+import FileOutputStream from "java.io.FileOutputStream"
+
+export function toPngFile(data : string) : Promise<string>  {
+	let fileName = Math.random().toString(16).substring(2, 16)
+	let baesestrAr = data.split(',') as string[]
+	let base64Data = baesestrAr[1]
+	let fileUrl = ''
+	
+	try {
+		let context = UTSAndroid.getAppContext()!
+		let filepath = context.getExternalCacheDir()?.getPath() ?? ""
+		// 解码Base64字符串
+		let decodedBytes = Base64.decode(base64Data, Base64.DEFAULT)
+		let bitmap = BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.size)
+		let file = new File(filepath, fileName + '.png');
+
+		let fos = new FileOutputStream(file)
+		bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
+		fileUrl = file.getPath();
+		
+	} catch (error) {
+		console.error('处理图片错误:', error)
+		//TODO handle the exception
+		return Promise.reject(fileUrl) as Promise<string> 
+	}
+
+	return Promise.resolve(fileUrl)
+}