i'm trying to do a fallback on a timeout event!
ive set super.setingeterproperty("loadurltimeoutvalue", 60") so i can simulate it. Been searching around and havent found alot of answers to this.
I'm trying to do this: if timeout event -> load page from assets folder.
this so i can hide the error message that occurs on timeout. that error message contains the address to the site being loaded, and i dont want that at all to show up anywhere.
if (mWebView.loadUrlTimeout == currentLoadUrlTimeout) {
//super.loadurl("android_assets bla bla")
}
Found that code here, but cant get it to work. i think there are lots of parts missing, to the code, as i tried stripping it.
I am still pretty fresh to this, so there might be really logical flaws which i just dont see.
Any help greatly appreciated :)
Try setting following property in the activity before loading the page, it should work:
super.setStringProperty("errorUrl", "file:///android_asset/www/error_page.html");
setStringProperty has been deprecated in 3.0. Use config.xml instead:
<preference name="ErrorUrl" value="myErrorPage.html"/>
Related
I follow the following link's sample code
http://android.dronekit.io/first_app.html
and when I set API VehicleApi.getApi(this.drone).arm(true);
vehicleState.isFlying() automatically becomes true.
Can anybody tell me what this problem is?
What I need is:
1. take off, land
I read from some website that the dronekit-android does not support the mode changing. If so, how should I send the mavlink message to take off and land?
So far, I can sucessfully send the mavlink message to the PX4 board.
Thanks for replying.
Thank you for replying.
BR
SeanH
If you trace though some of the code in dronekit-android, you can see that isFlying is set here with the code below.
boolean isFlying = systemStatus == MAV_STATE.MAV_STATE_ACTIVE || ...;
MAV_STATE_ACTIVE, defined here states
System is active and might be already airborne. Motors are engaged.
So isFlying doesn't mean it's airborne but just that the motors are turned on. That occurs when you call VehicleApi.getApi(this.drone).arm(true); because you are literally arming the vehicle at that point.
For takeoff, you want to use the ControlApi. ControlApi.getApi(drone).takeOff(desired_altitude, listener) and for land you need to use VehicleApi.getApi(drone).setVehicleMode(VehicleMode.COPTER_LAND, listener)
The sample code you're looking at is very old. I suggest you follow the sample app from github.
I have not tried android-dronekit before and I noticed that the src folder have not been updated for more than two years on github.
I advice you to use python-dronekit because there is a powerful library called pymavlink in python and used in python-dronekit. You can build hyper application if you want but first try to takeoff and land in python.
I am experiencing a strange bug in PhoneGap on Android 4.4, for which I couldn't find any solution online. In my app, I am loading a lot of different images from a remote server, and as the user navigates back and forth, new images are loaded on each page (4 at a time, to be specific, through jQuery-generated html). After having navigated back and forth for a little while, some images will randomly not show up and instead show the typical "broken image" icon.
Now, here comes the strange part: I have been following the instructions at jQuery/JavaScript to replace broken images and done a few tests of my own. In conclusion, the naturalWidth and naturalHeight parameters report the right sizes of the images, and complete reports true for all images. Therefore, the solutions mentioned in the above SO thread don't work at all. Changing the image src doesn't help, either with or without a setTimeout (I tried adding the current timestamp as a parameter to the image path as well).
Did anyone else encounter this issue at all, or am I going crazy here? :)
EDIT: By the way, no error is ever reported. Therefore, no error handler is called when loading the image, making it useless to solve the problem with the already suggested methods (see the link above).
This is how i handle error images,
<img src="images/imageName.jpg" onError="onErrorFunc(this);" alt=" " />
function onErrorFunc(elem){
var imgUrl = "https://alternative-image";
elem.onerror = function (){
elem.src='images/noimage.jpg';
}
elem.src=imgUrl;
}
Hope it helps!
I'm trying to integrate the google play Leaderboard with help of the play-games-plugin-for-unity plugin into my game.
It works fine, committing to Leaderboard an all, only one thing is not working. When I call the Leaderboard
//LEADERBOARD
if (GUI.Button(leaderboardButton, "Leaderboard"))
{
((PlayGamesPlatform)Social.Active).ShowLeaderboardUI(Constants.LEADERBOARDID);
// Social.ShowLeaderboardUI();
}
it opens the window where I see all leaderboards. But I'm giving a specific id. This would be the behaviour I expect from the line Social.ShowLeaderboardUI(); which is commented out. The overload with a given Id (hid behind Constants.LEADERBOARDID) should start the specific Leaderboard UI according to the doc. Someone knows if this is an issue (haven't seen any report on GitHub) and how to solve it? It isn't that that big of an issue, but one click is better than two.
I tried something interesting. I changed the Id to some wrong value. Still the same behavior (opening the window with all leaderboards). Of course committing the score doesn't work anymore.
Okay, i found the error in the sourcecode of the Plugin, fixed it and resolved the problem. So here I present the fix if someone needs it. It's in the LeaderboardManager class.
This is how ShowUI is called:
internal void ShowUI(string leaderboardId, Action callback) {
Misc.CheckNotNull(callback);
C.LeaderboardManager_ShowAllUI(mServices.AsHandle(), Callbacks.InternalShowUICallback,
Callbacks.ToIntPtr(callback));
}
This should be the correct version
internal void ShowUI(string leaderboardId, Action callback) {
Misc.CheckNotNull(callback);
C.LeaderboardManager_ShowUI(mServices.AsHandle(),leaderboardId, Callbacks.InternalShowUICallback,
Callbacks.ToIntPtr(callback));
}
}
See the difference? C.LeaderboardManager_ShowAllUI instead of C.LeaderboardManager_ShowUI is called.
So I noticed when I was debugging that there seems to be a tag that's repeating through my app entitled "BubblePopupHelper" with text: "isShowingBubblePopup : false"
Screenshot of the log
To my knowledge, I'm not using or causing it. Does anyone have an idea of what's going on? The application is the one I'm writing.
Upon further inspection, I did notice that every time I'm updating text (via a TextView) it displays onscreen. If there's a better way of doing so, please let me know.
Thanks!
The message seems to be logged by some SDK libraries whenever setText is called in a TextView. I get it in Android Studio developing with min API 14.
One interim solution till Google removes it would be using the filtering feature of Android Studio by writing a RegEx that only includes your log messages. For example if I have all my tags start with 'Braim' then 'Braim.*' can be used
If you want to filter this annoying logs away you can use the following regex:
by Log Tag: (?!^BubblePopupHelper)(^.*$)
Have you added "OnGlobalLayoutListener"?
I've encountered same problem and finally I found that getViewTreeObserver().addOnGlobalLayoutListener caused the problem.
Here is my solution:
textView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
...
textCategory.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
});
The following error comes from Android (WebView) and not directly from my own code:
04-28 12:36:15.174: ERROR/Web Console(7604):
Uncaught TypeError: Cannot call method 'getItem' of null at http://m.youtube.com/:844
I am really not doing anything special other than loading that URL into WebView. Most of the time I don't get this error, so I am assuming this could be pointing to some unreliable network conditions? Perhaps youtube.com too busy?
It's hard to tell. Regardless, I would like to at least have an idea what could be causing this and whether I can catch that error so that I can better handle it.
Again, my own code has no knowledge of what getItem is. On the other hand, when this problem occurs, the YouTube page on my WebView is simply empty.
Insights?
EDIT: I have been looking for documentation about the proposed WebSettings.setDomStorageEnabled(true). The only hint I have been able to find so far was in this SO thread: As I mentioned earlier, this problem occurs very rarely and haven't occurred since I posted my question. So I must understand a little more about the connection between this and "DOM storage" before I can devise a way to test/verify whether this solves the problem.
Also, I just encountered another error message (with benign results, so it seems):
05-02 00:44:45.823: ERROR/Web Console(1595):
dojo.back.init() must be called before the DOM has loaded.
If using xdomain loading or djConfig.debugAtAllCosts,
include dojo.back in a build layer.
at http://sj.example.com/ncscript/subsect/j_gs/version/20110428191502.js:164
I can now see some connection to DOM, so it looks like #Brian O'Dell is in the right direction. I just need to understand what WebSettings.setDomStorageEnabled(true) does.
Perhaps you need something like:
WebSettings settings = webView.getSettings();
settings.setDomStorageEnabled(true);
source
I was trying to use localStorage with Chrome Custom Tabs and I was getting the same error. I have used window.localstorage instead of localStorage and problem was solved.
I also had the same error in the console:
Uncaught TypeError: unable to call null's 'getItem' method
I was using localStorage.getItem to retrieve the value, so I changed it to window.localStorage.getItem and fixed the problem