Android Question Issue on deleting SMS

sirjo66

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Licensed User
Longtime User
Hello,
I have a problem deleting SMS.

Until now, on old devices, the app works well.

The APP isn't on "Google Play Store", so I don't use "intent".

On manifest I have:
B4X:
AddManifestText(
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="22"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

AddPermission(android.permission.SEND_SMS)
AddPermission(android.permission.READ_SMS)
AddPermission(android.permission.WRITE_SMS)

Note that android:targetSdkVersion="22" is because so I don't need RuntimePermission, but, if I need it, I will add it

With my phone I send an SMS to myself, and then run this program:
B4X:
Dim Cellulare As String = "+39348xxxxxxx" ' here is my phone number

Log("Read SMS (" & Cellulare & ")")

Dim smsmanager As SmsMessages
Dim Lst As List = smsmanager.GetAll()

Log("There are " & Lst.Size & " messages")

Dim smsmsg As Sms
For idx = 0 To Lst.Size - 1
    smsmsg = Lst.Get(idx)
    If smsmsg.Address = Cellulare Then
        Log("delete SMS id: " & smsmsg.Id)
        smsmanager.deletesms(smsmsg.Id)
    End If
Next

But it don't delete messages

Thanks for your help

Sergio
 

DonManfred

Expert
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Longtime User
Enable the unfiltered log and post the log. I´m positive that there is maybe something...

I can imagine it does not work on newer devices... You can stick with old devices though.

Based on this it is not possible on Devices running Android 4.4+ unless your app is the default SMS app on the Device.

The unfiltered log may reveal more infos.

Forum Search about it.

All relevant answers i found suggest the app must be the default SMS app to delete a SMS.

 
Last edited:
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sirjo66

Well-Known Member
Licensed User
Longtime User
Here is unfiltered log

Read SMS (+393482663653)
query,matched:0, calling pid = 9971
query, match 0:Elapsed time : 1.528 ms
There are 4 messages
delete SMS id: 1584
content://sms
delete SMS id: 1583
content://sms
query,matched:4, calling pid = 17272
query, match 4:Elapsed time : 1.204 ms
 
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sirjo66

Well-Known Member
Licensed User
Longtime User
Based on this it is not possible on Devices running Android 4.4+ unless your app is the default SMS app on the Device.

Yes, I knowed this, but I hoped that was only for apps on "Google Play Store"

Well, I will change with "broadcast intent"

Entering in searching mode........

Many thanks for your patience

Sergio
 
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sirjo66

Well-Known Member
Licensed User
Longtime User
I want also try another way.
I readed that apps like whatsapp can receive a "special sms", with a fixed format, for (example) activate the app.
So, the app can read and delete this SMS.
I try to search this thread with words like "whatsapp", "sms", "special", and so on but I don't find it
 
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DonManfred

Expert
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Longtime User
I readed that apps like whatsapp can receive a "special sms", with a fixed format, for (example) activate the app.
So, the app can read and delete this SMS.
No.

It uses the SMS Retriever Api.

 
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udg

Expert
Licensed User
Longtime User
Hi @sirjo66 ,
are you aware that your full phone number is visible in post #3 ? AFAIK, forum pages are idexed by search engines, so that number will be soon in the public domain
 
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