是什么原因导致此问题“无法在react

是什么原因导致此问题“无法在react

使用本机网桥时，应使用包中的

WritableNative

组件调用回调

com.facebook.react.bridge

。

而不是a

JSONObject

使用

WritableNativeMap

。
而不是a

JSONArray

，请使用

WritableNativeArray

。

例如，带有

WritableNativeMap

：

@ReactMethodpublic void reactMethod(Callback onSuccess) {  WritableMap resultData = new WritableNativeMap();  resultData.putString("key1", "data");  resultData.putString("key2", "data2");  onSuccessCallback(resultData);}

对于您的情况，您应该具有以下内容：

public static WritableArray applist;// ...@ReactMethodpublic void show(Callback errorCallback, Callback successCallback) {    try {        //get a list of installed apps.        PackageManager pm = getReactApplicationContext().getPackageManager();        List<ApplicationInfo> packages = pm.getInstalledApplications(0);        WritableArray app_list = new WritableNativeArray();        // ...        for (ApplicationInfo packageInfo : packages) { try {     if (getReactApplicationContext().getPackageManager().getLaunchIntentForPackage(packageInfo.packageName) != null) {         WritableMap info = new WritableNativeMap();         info.putString("name", packageInfo.loadLabel(pm).toString());         info.putString("packagename", packageInfo.packageName);         // ...         app_list.pushMap(info);     } } catch (Exception ex) {     System.err.println("Exception: " + ex.getMessage()); }        }        applist = app_list;        successCallback.invoke(applist);    } catch (Exception e) {        errorCallback.invoke(e.getMessage());    }}