I am writing a method that will return a list, with each item being a map containing information about an app installed on the device.
I have the method working to the extent that I can get the list, and access each map, however some of the items in the map are lists, which I cannot access. I have verified that I am getting a B4A list by writing another method as shown below.
Which when called from B4A, returns true.
However when I try dimming a list, it throws
java.lang.ClassCastException: anywheresoftware.b4a.objects.collections.List
My Java method is here:
And my code in B4A is here:
I've been scratching my head over this for hours now.
Any help is appreciated, thanks.
I have the method working to the extent that I can get the list, and access each map, however some of the items in the map are lists, which I cannot access. I have verified that I am getting a B4A list by writing another method as shown below.
B4X:
public boolean getIsB4AList(Object List) {
return List != null && List.getClass().equals(anywheresoftware.b4a.objects.collections.List.class);
}Which when called from B4A, returns true.
However when I try dimming a list, it throws
java.lang.ClassCastException: anywheresoftware.b4a.objects.collections.List
My Java method is here:
B4X:
/**
* Returns a list, with each element being a map containing extended details
* about the relevant app.
*/
public anywheresoftware.b4a.objects.collections.List getInstalledPackages() {
anywheresoftware.b4a.objects.collections.List list = new anywheresoftware.b4a.objects.collections.List();
list.Initialize();
PackageManager pm = BA.context.getPackageManager();
java.util.List<PackageInfo> temp = pm
.getInstalledPackages(PackageManager.GET_ACTIVITIES
| PackageManager.GET_GIDS
| PackageManager.GET_CONFIGURATIONS
| PackageManager.GET_INSTRUMENTATION
| PackageManager.GET_INSTRUMENTATION
| PackageManager.GET_RECEIVERS
| PackageManager.GET_RECEIVERS
| PackageManager.GET_SERVICES
| PackageManager.GET_SIGNATURES);
for (PackageInfo pi : temp) {
MyMap map = new MyMap();
ActivityInfo[] acts = pi.activities;
if (acts != null) {
anywheresoftware.b4a.objects.collections.List actlist = new anywheresoftware.b4a.objects.collections.List();
actlist.Initialize();
for (ActivityInfo a : acts) {
MyMap actmap = new MyMap();
if (IsAPIOrBetter(20)) {
actmap.put("Banner", a.banner);
}
actmap.put("ConfigChanges", a.configChanges);
if (IsAPIOrBetter(21)) {
actmap.put("DocumentLaunchMode", a.documentLaunchMode);
}
actmap.put("Enabled", a.enabled);
actmap.put("Exported", a.exported);
actmap.put("Flags", a.flags);
if (IsAPIOrBetter(9)) {
actmap.put("Logo", a.logo);
}
if (IsAPIOrBetter(21)) {
actmap.put("MaxRecents", a.maxRecents);
}
actmap.put("Name", a.name);
actmap.put("PackageName", a.packageName);
actmap.put("Permission", a.permission);
if (IsAPIOrBetter(21)) {
actmap.put("PersitableMode", a.persistableMode);
}
actmap.put("ProcessName", a.processName);
actmap.put("ScreenOrientation", a.screenOrientation);
if (IsAPIOrBetter(3)) {
actmap.put("SoftInputMode", a.softInputMode);
}
actmap.put("TargetActivity", a.targetActivity);
actmap.put("TaskAffinity", a.taskAffinity);
actmap.put("Theme", a.theme);
if (IsAPIOrBetter(14)) {
actmap.put("UIOptions", a.uiOptions);
}
actlist.Add(actmap);
}
map.put("Activities", actlist);
}
if (pi.applicationInfo != null) {
ApplicationInfo ai = pi.applicationInfo;
MyMap appmap = new MyMap();
if (IsAPIOrBetter(8)) {
appmap.put("BackupAgentName", ai.backupAgentName);
}
appmap.put("ClassName", ai.className);
if (IsAPIOrBetter(13)) {
appmap.put("CompatibleWidthLimitDP",
ai.compatibleWidthLimitDp);
}
appmap.put("DataDir", ai.dataDir);
appmap.put("Enabled", ai.flags);
appmap.put("Flags", ai.flags);
try {
appmap.put("Label", BA.context.getString(ai.labelRes));
} catch (Exception ex) {
}
if (IsAPIOrBetter(13)) {
appmap.put("LargestWidthLimitDP", ai.largestWidthLimitDp);
}
appmap.put("ManageSpaceActivityName",
ai.manageSpaceActivityName);
appmap.put("Name", ai.name);
if (IsAPIOrBetter(9)) {
appmap.put("NativeLibraryDir", ai.nativeLibraryDir);
}
appmap.put("NonLocalizedLabel", ai.nonLocalizedLabel);
if (IsAPIOrBetter(13)) {
appmap.put("RequiresSmallestWidthDP",
ai.requiresSmallestWidthDp);
}
appmap.put("PackageName", ai.packageName);
appmap.put("Permission", ai.permission);
appmap.put("ProcessName", ai.processName);
appmap.put("PublicSourceDir", ai.publicSourceDir);
appmap.put("SharedLibraryFiles", ai.sharedLibraryFiles);
appmap.put("SourceDir", ai.sourceDir);
if (IsAPIOrBetter(21)) {
appmap.put("SplitPublicSourceDirs",
ai.splitPublicSourceDirs);
appmap.put("SplitSourceDirs", ai.splitSourceDirs);
}
if (IsAPIOrBetter(4)) {
appmap.put("TargetSDKVersion", ai.targetSdkVersion);
}
appmap.put("TaskAffinity", ai.taskAffinity);
appmap.put("Theme", ai.theme);
appmap.put("UID", ai.uid);
if (IsAPIOrBetter(14)) {
appmap.put("UIOptions", ai.uiOptions);
}
map.put("ApplicationInfo", appmap);
}
if (IsAPIOrBetter(22)) {
map.put("BaseRevisionCode", pi.baseRevisionCode);
}
if (IsAPIOrBetter(3) && pi.configPreferences != null) {
ConfigurationInfo[] ci = pi.configPreferences;
anywheresoftware.b4a.objects.collections.List configlist = new anywheresoftware.b4a.objects.collections.List();
configlist.Initialize();
for (ConfigurationInfo c : ci) {
MyMap cmap = new MyMap();
if (IsAPIOrBetter(4)) {
cmap.put("RequiredGLESVersion", c.reqGlEsVersion);
}
cmap.put("RequiredInputFeatures", c.reqInputFeatures);
cmap.put("RequiredKeyBoardType", c.reqKeyboardType);
cmap.put("RequiredNavigation", c.reqNavigation);
cmap.put("RequiredTouchScreen", c.reqTouchScreen);
configlist.Add(cmap);
}
map.put("ConfigPreferences", configlist);
}
if (IsAPIOrBetter(9)) {
map.put("FirstInstallTime", pi.firstInstallTime);
}
map.put("GIDs", pi.gids);
if (IsAPIOrBetter(21)) {
map.put("InstallLocation", pi.installLocation);
}
if (pi.instrumentation != null) {
InstrumentationInfo[] ii = pi.instrumentation;
anywheresoftware.b4a.objects.collections.List instlist = new anywheresoftware.b4a.objects.collections.List();
instlist.Initialize();
for (InstrumentationInfo i : ii) {
MyMap imap = new MyMap();
imap.put("DataDir", i.dataDir);
imap.put("FunctionalTest", i.functionalTest);
imap.put("HandleProfiling", i.handleProfiling);
imap.put("PublicSourceDir", i.publicSourceDir);
imap.put("SourceDir", i.sourceDir);
if (IsAPIOrBetter(21)) {
imap.put("SplitPublicSourceDirs",
i.splitPublicSourceDirs);
imap.put("SplitSourceDirs", i.splitSourceDirs);
}
imap.put("TargetPackage", i.targetPackage);
instlist.Add(imap);
}
map.put("Instrumentation", instlist);
}
if (IsAPIOrBetter(9)) {
map.put("LastUpdateTime", pi.lastUpdateTime);
}
map.put("PackageName", pi.packageName);
if (pi.permissions != null) {
PermissionInfo[] pi2 = pi.permissions;
anywheresoftware.b4a.objects.collections.List plist = new anywheresoftware.b4a.objects.collections.List();
plist.Initialize();
for (PermissionInfo p : pi2) {
MyMap pmap = new MyMap();
if (IsAPIOrBetter(17)) {
pmap.put("Flags", p.flags);
}
pmap.put("Group", p.group);
pmap.put("ProtectionLevel", p.protectionLevel);
plist.Add(pmap);
}
}
if (pi.providers != null) {
ProviderInfo[] pi3 = pi.providers;
anywheresoftware.b4a.objects.collections.List plist2 = new anywheresoftware.b4a.objects.collections.List();
plist2.Initialize();
for (ProviderInfo p : pi3) {
MyMap pmap = new MyMap();
pmap.put("Authority", p.authority);
if (IsAPIOrBetter(17)) {
pmap.put("Flags", p.flags);
}
pmap.put("GrantURIPermissions", p.grantUriPermissions);
pmap.put("InitOrder", p.initOrder);
pmap.put("MultiProcess", p.multiprocess);
pmap.put("ReadPermission", p.readPermission);
pmap.put("WritePermission", p.writePermission);
plist2.Add(pmap);
}
map.put("Providers", plist2);
}
if (pi.receivers != null) {
ApplicationInfo ai = pi.applicationInfo;
MyMap appmap = new MyMap();
if (IsAPIOrBetter(8)) {
appmap.put("BackupAgentName", ai.backupAgentName);
}
appmap.put("ClassName", ai.className);
if (IsAPIOrBetter(13)) {
appmap.put("CompatibleWidthLimitDP",
ai.compatibleWidthLimitDp);
}
appmap.put("DataDir", ai.dataDir);
appmap.put("Enabled", ai.flags);
appmap.put("Flags", ai.flags);
try {
appmap.put("Label", BA.context.getString(ai.labelRes));
} catch (Exception ex) {
}
if (IsAPIOrBetter(13)) {
appmap.put("LargestWidthLimitDP", ai.largestWidthLimitDp);
}
appmap.put("ManageSpaceActivityName",
ai.manageSpaceActivityName);
appmap.put("Name", ai.name);
if (IsAPIOrBetter(9)) {
appmap.put("NativeLibraryDir", ai.nativeLibraryDir);
}
appmap.put("NonLocalizedLabel", ai.nonLocalizedLabel);
if (IsAPIOrBetter(13)) {
appmap.put("RequiresSmallestWidthDP",
ai.requiresSmallestWidthDp);
}
appmap.put("PackageName", ai.packageName);
appmap.put("Permission", ai.permission);
appmap.put("ProcessName", ai.processName);
appmap.put("PublicSourceDir", ai.publicSourceDir);
appmap.put("SharedLibraryFiles", ai.sharedLibraryFiles);
appmap.put("SourceDir", ai.sourceDir);
if (IsAPIOrBetter(21)) {
appmap.put("SplitPublicSourceDirs",
ai.splitPublicSourceDirs);
appmap.put("SplitSourceDirs", ai.splitSourceDirs);
}
if (IsAPIOrBetter(4)) {
appmap.put("TargetSDKVersion", ai.targetSdkVersion);
}
appmap.put("TaskAffinity", ai.taskAffinity);
appmap.put("Theme", ai.theme);
appmap.put("UID", ai.uid);
if (IsAPIOrBetter(14)) {
appmap.put("UIOptions", ai.uiOptions);
}
map.put("Receivers", appmap);
}
if (IsAPIOrBetter(5) && pi.reqFeatures != null) {
FeatureInfo[] fi = pi.reqFeatures;
anywheresoftware.b4a.objects.collections.List flist = new anywheresoftware.b4a.objects.collections.List();
flist.Initialize();
for (FeatureInfo f : fi) {
MyMap fmap = new MyMap();
fmap.put("Flags", f.flags);
fmap.put("Name", f.name);
fmap.put("RequiredGLESVersion", f.reqGlEsVersion);
flist.Add(fmap);
}
map.put("RequiredFeatures", flist);
}
map.put("RequestedPermissions", pi.requestedPermissions);
if (IsAPIOrBetter(16)) {
map.put("RequestedPermissionsFlags",
pi.requestedPermissionsFlags);
}
if (pi.services != null) {
ServiceInfo[] si = pi.services;
anywheresoftware.b4a.objects.collections.List slist = new anywheresoftware.b4a.objects.collections.List();
slist.Initialize();
for (ServiceInfo s : si) {
MyMap smap = new MyMap();
if (IsAPIOrBetter(14)) {
smap.put("Flags", s.flags);
}
smap.put("Permission", s.permission);
smap.put("Name", s.name);
smap.put("ProcessName", s.processName);
slist.Add(smap);
}
map.put("Services", slist);
}
if (IsAPIOrBetter(3)) {
map.put("SharedUserID", pi.sharedUserId);
map.put("SharedUserLabel", pi.sharedUserLabel);
}
if (IsAPIOrBetter(21)) {
map.put("SplitNames", pi.splitNames);
}
if (IsAPIOrBetter(22)) {
map.put("SplitRevisionCodes", pi.splitRevisionCodes);
}
map.put("VersionCode", pi.versionCode);
map.put("VersionName", pi.versionName);
list.Add(map);
}
return list;
}And my code in B4A is here:
B4X:
Dim pu As PackageUtils
pu.Initialize
Dim List As List = pu.InstalledPackages 'Get the installed packages.
For i = 0 To List.Size - 1
Dim Map As Map = List.Get(i) 'Get the map for this app.
Dim o As Object = Map.Get("Services") 'Just, a test, get the services. This works and returns a valid list.
Log(o) 'Outputs the items in the list.
Log("B4A: " & pu.getIsB4AList(o)) 'Returns true
Log("Java: " & pu.getIsJavaList(o)) 'Returns false.
If pu.getIsJavaList(o) Then LogColor("Oh no!",Colors.Red) 'Not executed.
If pu.getIsB4AList(o) Then
Dim l As List = o 'Throws the exception mentioned.
If l.IsInitialized Then
Log(l.Size)
End If
End If
NextI've been scratching my head over this for hours now.
Any help is appreciated, thanks.
