File storage error when trying to display an OpenStreetMap map - java

My Android app using OpenStreetMap, which has been perfectly working for months, is now not able anymore to display the OpenStreetMap map. Despite the WRITE_EXTERNAL_STORAGE permission granted, I get messages like these :
E/OsmDroid: Unable to start the SQLite tile writer. Check external storage availability.
I/StorageUtils: /storage/emulated/0 is NOT writable
As I am targetting API29 and running on an Android 10 phone, I suppose the problem is related to the new policy about external storage access and the requirement to use the Storage Access Framework. Am I right?
No matter if I am right or wrong, does anyone know how I could fix this?

Because you are targeting Andorid 10 - api 29, the official Android docs states:
Running on Android 10
If your app targets Android 10 (API level 29), opt-out of scoped
storage and continue using the approach for Android 9 and lower to
perform this operation.
So you need to add to the AndroidManifest.xml:
<manifest ... >
<!-- This attribute is "false" by default on apps targeting
Android 10 or higher. -->
<application android:requestLegacyExternalStorage="true" ... >
...
</application>
</manifest>
#blackapps This is not a hack.

Related

What permissions are considered collection of users' data?

I have recently rolled out a simple app and it is currently still in review. When I filled out the questions I remember that I was asked whether my app collects data or not and I stated no. I am wondering if I chose the right option since I am not so sure now.
These are my permissions in my manifest file:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="com.google.android.gms.permission.AD_ID"/>
I also am not sure if this log code is considered collection of data which is part of my app.
Log.d("TAG", "The interstitial ad wasn't ready yet.");
and
Log.d(LOG_TAG, "onStart");
These log code segments are the same ones available on the ad guide pages for android developers, I've integrated, app open ads, interstitial and banner ads. Also all the permissions are purely to allow the user to be able to see the ads so I'm not sure if this is considered collecting data. My application can work without any internet connection.
I have also made my app available to users from the ages of 6 and above as I believe that it is simple enough to use. Do I need to add in any special code that asks for permission because of this or does my app have to be made specifically for a certain age group if its below the ages of 13? I read through the policies but I don't consider that I'm collecting data or have violated any policies, or showing any type of inappropriate ads as I have disabled all these types of potential ads in my admob account for this specific ad. I'm not sure if I've done everything right or not, can someone tell me how this should be handled as I have not added any targeting code in my app. Its just the basic ad code that I have added to my app.
We cannot determine what if you collect user data from manifest file, but depend on your manifest.
android.permission.ACCESS_NETWORK_STATE is needed for accessing ConnectivityManager (mainly for monitoring network connections in general), while android.permission.ACCESS_WIFI_STATE grants access to WifiManager (for managing all aspects of Wi-Fi connectivity in particular).
In the latest release of Google Play, Google removed the need to ask permission for internet as "most apps need it anyways nowadays". However, for users who have older versions, it is still recommended to leave the code below in your manifest.
If the app doesn't contain any ads:
You can simply remove/ignore it by adding tools:node="remove" in the AndroidManifest.xml file.
<uses-permission android:name="com.google.android.gms.permission.AD_ID" tools:node="remove"/>
Even if another third-party library asks for this specific permission, the build will be forced not to merge it in your final Manifest file. You can get more info from this SO answer.
Also you can read about all permission from this link.
Finally, don't worry depend on your manifest they can't be determine if you collect user data or not.

Action requested: Declare your Ad ID permission

Today i have got this email:
Last July, we announced Advertising policy changes to help bolster
security and privacy. We added new restrictions on identifiers used by
apps that target children. When users choose to delete their
advertising ID in order to opt out of personalization advertising,
developers will receive a string of zeros instead of the identifier if
they attempt to access the identifier. This behavior will extend to
phones, tablets, and Android TV starting April 1, 2022. We also
announced that you need to declare an AD_ID permission when you update
your app targeting API level to 31 (Android 12). Today, we are sharing
that we will give developers more time to ease the transition. We will
require this permission declaration when your apps are able to target
Android 13 instead of starting with Android 12.
Action Items If you use an advertising ID, you must declare the AD_ID
Permission when your app targets Android 13 or above. Apps that don’t
declare the permission will get a string of zeros. Note: You’ll be
able to target Android 13 later this year. If your app uses an SDK
that has declared the Ad ID permission, it will acquire the permission
declaration through manifest merge. If your app’s target audience
includes children, you must not transmit Android Advertising ID (AAID)
from children or users of unknown age.
My app is not using the Advertising ID. Should i declare the AD_ID Permission in Manifest or not?
Case 1: The app doesn't contain any Ads:
You can simply remove/ignore it by adding tools:node="remove" in the AndroidManifest.xml file.
<uses-permission android:name="com.google.android.gms.permission.AD_ID" tools:node="remove"/>
Make sure you have xmlns:tools at the top of AndroidManifest.xml file
Even if another third-party library asks for this specific permission, the build will be forced not to merge it in your final Manifest file.
You can get more info from this SO answer.
Case 2: The app contains Ads:
Add the following to AndroidManifest.xml before </manifest>:
<uses-permission android:name="com.google.android.gms.permission.AD_ID"/>
You can get more information from here.
If your app uses the Google Mobile Ads SDK(Admob) version 20.4.0 or higher, you can skip setting up the permission manually since the SDK automatically declares it
More informations here:
https://developers.google.com/admob/android/quick-start
Case 1: Your App has Ads
Add the following to AndroidManifest.xml before </manifest>:
<uses-permission android:name="com.google.android.gms.permission.AD_ID"/>
Case 2: Your App Doesn't have Ads
At the top of your AndroidManifest.xml make sure you have xmlns:tools on the <manifest ...>. (kudos to this answer) e.g.
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.mycompany.myapp">
Then, add the following at the bottom of the page, before </manifest> tag:
<uses-permission android:name="com.google.android.gms.permission.AD_ID" tools:node="remove"/>
Source:
Google's Doc: https://developers.google.com/android/reference/com/google/android/gms/ads/identifier/AdvertisingIdClient.Info#public-methods
Google describe here how to solve
https://support.google.com/googleplay/android-developer/answer/6048248?hl=en
Add in manifest
<uses-permission android:name="com.google.android.gms.permission.AD_ID"/>
If your app doesn't contain ads, make sure you complete the survey on App content page (Policy > App content) in Play Console.
Just select the option: No, my app does not contain ads.
If you don't do that, you won't be able to upload new releases of your app to Google Play.
First of all,
com.google.android.gms.permission.AD_ID can be added by other third party SDK like
Play Services-ads
firebase-analytics etc
So, if you haven't added permission.AD_ID manually, make sure it is not added by any other SDK by checking merged manifest file.
merged-manifest path:
project > app > build > intermediate > merged_manifest > release > AndroidManifest.xml
Now go to your play console > app content > Adverstising ID and
Select NO if your merged manifest doesn't contain AD_ID, else
Select YES and complete next option.
In my case, I used Firebase Analytics only for crash reports etc.
You can set your app to use advertising ID.
And use Analytics only.
Don't worry. All developer who uses Admob for advertisement received this warning. Just make sure you are using Latest Google Mobile Ads SDK(Admob) OR AdMob SDK version higher or equal to 20.4.0 in your build.gradle file. In that case SDK automatically manage it.
Otherwise for older sdk below 20.4.0, we need to manually mention below line in our AndroidManifest.xml
<uses-permission android:name="com.google.android.gms.permission.AD_ID"/>
There are two different forms:
Ads
Advertising ID
Initially, I got stuck because I did not notice the other. So your app can be in any combination, for example, no ads, but yes, advertising ID.
In this documentation it is explained that Google services can include the advertising ID for other reasons that are not ads: Analytics.
Google Play Services version 4.0 introduced new APIs and an ID for use by advertising and analytics providers. Terms for the use of this ID are below.
And in this other documentation, in the examples section is very clear that ads are understood as what is commonly understood as ads: banners, pop-ups, a tile in the middle of a list, etc.
Analyzing the merged manifest we can see that the library play-services-measurement-api is adding the permission and is related to Analytics. The library manifest looks like this:
<uses-permission android:name="com.google.android.gms.permission.AD_ID" />
<application>
<service
android:name="com.google.firebase.components.ComponentDiscoveryService"
android:exported="false" >
<meta-data
android:name="com.google.firebase.components:com.google.firebase.analytics.connector.internal.AnalyticsConnectorRegistrar"
android:value="com.google.firebase.components.ComponentRegistrar" />
</service>
</application>
Please notice that library is registering analytics.connector.internal.AnalyticsConnectorRegistrar.
In this case the Ads form must be mark with no but the Adverising ID form must be mark with yes and then the Analytics option.
I have seen people recommending force the manifest to not merge the permission.AD_ID but that would break the Analytics.
I also received today's mail from the PlayStore team to all developers. Asking to declare AD_ID permission.
Since we developed and released our application using Flutter with android targeting to API level 31. I'm using the advertising_identifier: ^0.1.1 plugin to get the advertising client ID. I haven't declared AD_ID permission in my manifest file.
Additionally, apps updating their target API level to 31 (Android 12) and using advertise identifier / advertise id client info fetch will need to declare a Google Play services normal permission in the manifest file as follows:
<uses-permission android:name="com.google.android.gms.permission.AD_ID"/>
Refered,
https://support.google.com/googleplay/android-developer/answer/6048248?hl=en
when you set targetSdkVersion 33 you must need to add the below line in the manifest file
<uses-permission android:name="com.google.android.gms.permission.AD_ID" tools:node="remove"/>
if you are not set this, show a warning on the play console when your is in production.

How do I get the BluetoothAdapter.startDiscovery() working on my Android 10 device?

I'm trying to get any bluetooth device around myself with my Huawei P30 (Android 10). When I try to use bluetoothAdapter.startDiscovery() it always returns false. I found out that the problem was the permission ACCESS_COARSE_LOCATION and ACCESS_FINE_LOCATION which were not working. So I tried to use every solutions described on this link : Android - Bluetooth discovery doesn't find any device, but unfortunatly, nothing works, the application doesn't start to scan.
Finally, I got the permissions but the function still returns false and the discovery doesn't start... Does any one have a solution for me ?
I also had the same problem on an Android 10 Huawei device. Even though I was not using location services in the app. In addition to adding the ACCESS_FINE_LOCATION in the AndroidManifest.xml I also had to
Grant permission to the app for location.
Turn on location services in the system settings. Which of course grants always on location access to a bunch of services and apps which can't be disabled within the OS.
It would be good to know if this behaviour is for Android 10 in general or a specific Huawei quirk.

How to prevent Admob ad ids from leaked by android hackig app

I have developed an android app. All the things are working fine but the main problem is, using the Hack App Data anyone can see the ad codes which is a very dangerous threat.
Now how can i prevent hack app to open my application or edit my application data or how can i prevent hack app data to access this sensitive information?
note: I have turned off android:exported="false" and also add <permission android:protectionLevel="signature"
android:name="apricot.com.newshunt"/> to my menifest file
you can set the Copy Protection to On in the Android Market upload page. It's near the bottom. I doubt it is fool-proof but it can help keep some of the people likely to do this from being able to.
You should add the view in Java instead of XML and obfuscate your code.

INSTALL_FAILED_MISSING_SHARED_LIBRARY when using MapView in Android Studio

I am trying to use a com.google.android.gms.maps.MapView in my app. It compiles without a problem, but I am getting the following error when launching it from Android Studio:
Failure [INSTALL_FAILED_MISSING_SHARED_LIBRARY]
I have tried everything in the main thread for this question.
I have installed the Google APIs
My build target is Google APIs (4.0)
I have <uses-library android:name="com.google.android.gms.maps" /> in my AndroidManifest.xml file's <application> tag
My AVD uses the Google APIs target
My real device has Google play services installed and up-to-date
An error is also visible in the preview pane of my activity file
If I remove the MapView reference and the <uses-library> tag, then the application launches.
This covers everything from the other threads that I can find on this topic. Does anyone know of anything else that might be causing this error?
I have <uses-library android:name="com.google.android.gms.maps" /> in my AndroidManifest.xml file's <application> tag
Delete that, as you made this up, and it is the source of your difficulty. Maps V1 used a <uses-library> element (with a different name); Maps V2 does not.
My AVD uses the Google APIs target
Maps V2 is not supported in the emulator at this time.

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