uniapp中获取APP应用签名信息

/** * 获取应用签名MD5 * @returns {Promise<unknown>} */functiongetAppSignatureMD5(){returnnewPromise((resolve)=>{// 1. 环境检查if(typeofplus==="undefined"||uni.getSystemInfoSync().platform!=="android"){resolve(null);return;}try{// 2. 获取 ContextconstMainActivity=plus.android.runtimeMainActivity();if(!MainActivity){console.error("MainActivity is null");resolve(null);return;}// 优先使用 Application ContextletContext=plus.android.invoke(MainActivity,"getApplicationContext");if(!Context){Context=MainActivity;}// 3. 获取 PackageManagerconstpackageManager=plus.android.invoke(Context,"getPackageManager");if(!packageManager){console.error("PackageManager is null");resolve(null);return;}// 4. 获取 PackageInfoconstpackageName=plus.android.invoke(Context,"getPackageName");constPackageManager=plus.android.importClass("android.content.pm.PackageManager");constflags=PackageManager.GET_SIGNATURES;// 64constpackageInfo=plus.android.invoke(packageManager,"getPackageInfo",packageName,flags);if(!packageInfo){console.error("PackageInfo is null");resolve(null);return;}// 5. 获取签名数组letsignatures=packageInfo.signatures;if(!signatures||signatures.length===0){signatures=plus.android.getAttribute(packageInfo,"signatures");}if(!signatures||signatures.length===0){console.error("Signatures is empty");resolve(null);return;}// 6. 计算 MD5constsignature=signatures[0];constMessageDigest=plus.android.importClass("java.security.MessageDigest");constmd5=MessageDigest.getInstance("MD5");constbytes=plus.android.invoke(signature,"toByteArray");plus.android.invoke(md5,"update",bytes);constdigest=plus.android.invoke(md5,"digest");lethex="";for(leti=0;i<digest.length;i++){constb=digest[i];consth=(b&0xff).toString(16);if(h.length<2){hex+="0";}hex+=h;if(i<digest.length-1){hex+=":";}}resolve(hex.toUpperCase());}catch(e){console.error("Get signature failed:",e);resolve(null);}});}