Android permission doesn't work even if I have

问题:

I'm trying to write code to send an SMS from an Android app, but when I try to send the SMS it sends me back the error:

09-17 18:37:29.974  12847-12847/**.**.****E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: **.**.****, PID: 12847
java.lang.SecurityException: Sending SMS message: uid 10092 does not have android.permission.SEND_SMS.
        at android.os.Parcel.readException(Parcel.java:1599)
        at android.os.Parcel.readException(Parcel.java:1552)
        at com.android.internal.telephony.ISms$Stub$Proxy.sendTextForSubscriber(ISms.java:768)
        at android.telephony.SmsManager.sendTextMessageInternal(SmsManager.java:310)
        at android.telephony.SmsManager.sendTextMessage(SmsManager.java:293)
        at **.**.****.MainActivity$3.onClick(MainActivity.java:70)
        at android.view.View.performClick(View.java:5198)
        at android.view.View$PerformClick.run(View.java:21147)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5417)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

I checked but I have the permissions in the manifest, as follows:

<?xml version="1.0" encoding="utf-8"?>

<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-feature android:name="android.hardware.telephony"
    android:required="true"/>

<application
    android:exported="true"
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

I searched the internet but all the errors were about the <uses-permission/> syntax, could you help me please?

回答1:

_{(the following is extracted from a blog post of mine about this)}

The big reason for not getting your permission nowadays is because your project has a targetSdkVersion of 23 or higher, and the permission that you are requesting is "dangerous". In Android 6.0, this includes:

• ACCESS_COARSE_LOCATION
• ACCESS_FINE_LOCATION
• ADD_VOICEMAIL
• BODY_SENSORS
• CALL_PHONE
• CAMERA
• GET_ACCOUNTS
• PROCESS_OUTGOING_CALLS
• READ_CALENDAR
• READ_CALL_LOG
• READ_CELL_BROADCASTS
• READ_CONTACTS
• READ_EXTERNAL_STORAGE
• READ_PHONE_STATE
• READ_SMS
• RECEIVE_MMS
• RECEIVE_SMS
• RECEIVE_WAP_PUSH
• RECORD_AUDIO
• SEND_SMS
• USE_SIP
• WRITE_CALENDAR
• WRITE_CALL_LOG
• WRITE_CONTACTS
• WRITE_EXTERNAL_STORAGE

For these permissions, not only does your targetSdkVersion 23+ app need to have the <uses-permission> element(s), but you also have to ask for those permissions at runtime from the user on Android 6.0+ devices, using methods like checkSelfPermission() and requestPermissions().

As a temporary workaround, drop your targetSdkVersion below 23.

However, eventually, you will have some reason to want your targetSdkVersion to be 23 or higher. At that time, you will need to adjust your app to use the new runtime permission system. The Android documentation has a page dedicated to this topic.

回答2:

Above API level 23 you will be given programmatically pragmatically like:

    private static final int PERMISSION_REQUEST_CODE = 1;

    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {

        if (checkSelfPermission(Manifest.permission.SEND_SMS)
                == PackageManager.PERMISSION_DENIED) {

            Log.d("permission", "permission denied to SEND_SMS - requesting it");
            String[] permissions = {Manifest.permission.SEND_SMS};

            requestPermissions(permissions, PERMISSION_REQUEST_CODE);

        }
    }

回答3:

request permission pragmatically (after API 23)

if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.SEND_SMS)
    != PackageManager.PERMISSION_GRANTED) {
    // Permission is not granted 
    // Ask for permision
    ActivityCompat.requestPermissions(this,new String[] { Manifest.permission.SEND_SMS}, 1); 
} 
else {
// Permission has already been granted
}

"If the app has the permission, the method checkSelfPermission() returns PERMISSION_GRANTED, and the app can proceed with the operation.

If the app does not have the permission, the method returns PERMISSION_DENIED, and the app has to explicitly ask the user for permission. You need to prompt the user for that permission, as shown in the above code. Calling requestPermissions() brings up a standard Android dialog, which you cannot customize."

回答4:

If you are using sdk 23 or higher then you must check run time permissions.

回答5:

when you declare permisson in Manifest and it's not work means you are performing Task in MarshMallow and for MarshMallow you have set Permisson at RunTime.

like this way

ActivityCompat.requestPermissions();

回答6:

Please go through the link below, https://developer.android.com/guide/topics/permissions/overview.html

Some samples are also available there to get start with the permissions.

To make android more secure now developers has to mention permission in manifest as well as they should have to ask user as well in run time to get the work done. They are permission categorized in dangerous permission section which are mention below

CALENDAR

READ_CALENDAR

WRITE_CALENDAR

CAMERA

CAMERA

CONTACTS

READ_CONTACTS
WRITE_CONTACTS
GET_ACCOUNTS

LOCATION

ACCESS_FINE_LOCATION
ACCESS_COARSE_LOCATION

MICROPHONE

RECORD_AUDIO

PHONE

READ_PHONE_STATE
READ_PHONE_NUMBERS
CALL_PHONE
ANSWER_PHONE_CALLS (must request at runtime)
READ_CALL_LOG
WRITE_CALL_LOG
ADD_VOICEMAIL
USE_SIP
PROCESS_OUTGOING_CALLS
ANSWER_PHONE_CALLS

SENSORS

BODY_SENSORS

SMS

SEND_SMS
RECEIVE_SMS
READ_SMS
RECEIVE_WAP_PUSH
RECEIVE_MMS

STORAGE

READ_EXTERNAL_STORAGE
WRITE_EXTERNAL_STORAGE

回答7:

I added this to my MainActivity, that resolve my problem

       int MY_PERMISSIONS_REQUEST_READ_CONTACTS=0;
// Here, thisActivity is the current activity
        if (ContextCompat.checkSelfPermission(this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE)
                != PackageManager.PERMISSION_GRANTED) {

            // Should we show an explanation?
            if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                    Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

                // Show an expanation to the user *asynchronously* -- don't block
                // this thread waiting for the user's response! After the user
                // sees the explanation, try again to request the permission.

            } else {

                // No explanation needed, we can request the permission.

                ActivityCompat.requestPermissions(this,
                        new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
                        MY_PERMISSIONS_REQUEST_READ_CONTACTS);

                // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
                // app-defined int constant. The callback method gets the
                // result of the request.
            }
        }

回答8:

If you are using Android version "23" or "23+", then app will show you errors when you are trying to access anything which requires user's permission. You have to ask for permissions at run-time even if you have declared those permissions in Android manifest.

Check this: https://developer.android.com/training/permissions/requesting.html

But if you have created your whole application and don't want to change at every place then a little cheat will be sufficient.

Go to "Build.gradle" file and change the target Sdk version to less than 23, like 22, 21.

回答9:

Along with CommonsWare's answer,

There is a Security Setting (I checked on CM13) to set SMS Message Limit. If you set this to "None", OS will popup a Dialog for every SMS, even after obtaining SMS_SEND permission in the runtime. Best thing is to set this to maximum.

If the maximum is not enough, there are ways to increases the maximum rate on a rooted device.

回答10:

You can use this code to access your messages

Open a Dialog using the code below:

ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                    1);

Get the Activity result as below:

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {

          // If request is cancelled, the result arrays are empty.
          if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.          
            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
                Toast.makeText(MainActivity.this, "Permission denied to read your External storage", Toast.LENGTH_SHORT).show();
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

or edit file build.gradle and chanche number targetSdkVersion less than 23
And no longer need the code above

NOTE
Of course this is not the case, and it's just an educational aspect

回答11:

So i had to create an app to send and receive messages but the send action crashed whenever i clicked on send even though the permission was granted . I had requested runtime permissions and allowed them, still i faced a crash that the process doesnt have the requested permission to send SMS . I had checked the granted permissions from :

adb shell dumpsys package <package-name>

The order of my request for permissions was

1. RECEIVE_SMS
2. SEND_SMS

I reverted the order of request and it works fine . This was tested with a complete new app(uninstall-> install -> test). The answer may seem weird but just give it a shot .

(If it works in the shown way in a certain order, then Android might have a bug!!)

回答12:

I hope the solution to write to external storage will be useful too

public  boolean checkPermission() {
        if (Build.VERSION.SDK_INT >= 23) {
            if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    == PackageManager.PERMISSION_GRANTED) {
                Timber.tag(LOG_TAG).e("Permission error. You have permission");
                return true;
            } else {
                Timber.tag(LOG_TAG).e("Permission error. You have asked for permission");
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
                return false;
            }
        }
        else { 
            // for a stuff below api level 23
            Timber.tag(LOG_TAG).e("Permission error. You already have the permission");
            return true;
        }
    }