Android 运行时权限已授予但仍被拒绝

Question

我正在尝试编写一个发送短信的应用程序。在检查我是否拥有所需的权限时，它返回 true，但仍会因 SecurityException 崩溃。

按下按钮时

private void startAutoMsg() {
    Log.d("Starting Auto Msg");
    //FIXME: Start proper loop
    if (canSendSms()) {
        sendMessage();
        mAutoMsgButton.setBackgroundColor(Color.GREEN);
    }
}

我正在使用以下功能来确定我是否拥有适当的权限

private boolean canSendSms() {
    if ((ContextCompat.checkSelfPermission(mContext, Manifest.permission.SEND_SMS)
            == PackageManager.PERMISSION_GRANTED)) {
        Log.d("Permission granted");
        return true;
    } else {
        Log.d("Permission denied");
        ActivityCompat.requestPermissions(
                mActivity, new String[]{Manifest.permission.SEND_SMS}, 101);
        return false;
    }
}

上面的代码返回 true，因此 SMS 试图用这个发送

private void sendMessage() {
    Log.d("sending message");
    PendingIntent sentPI = PendingIntent.getBroadcast(
            mContext, 0, new Intent(Constants.ACTION_SMS_SENT), 0);
    PendingIntent deliveredPI = PendingIntent.getBroadcast(
            mContext, 0, new Intent(Constants.ACTION_SMS_DELIVERED), 0);
    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            mSmsManager.sendTextMessage("mNumber", null, mText, sentPI, deliveredPI);
        }
    });
    thread.run();
}

在我的清单中：

<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.WRITE_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.RECEIVE_MMS" />

崩溃日志

D/SmsApp: TelephonyFragment: canSendSms(533): Permission granted
D/SmsApp: TelephonyFragment: sendMessage(222): sending message
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: com.android.phone, PID: 16736
                  java.lang.SecurityException: Sending SMS message: uid 1001 does not have android.permission.SEND_SMS.
                      at android.app.ContextImpl.enforce(ContextImpl.java:1727)
                      at android.app.ContextImpl.enforceCallingPermission(ContextImpl.java:1749)
                      at android.content.ContextWrapper.enforceCallingPermission(ContextWrapper.java:750)
                      at android.content.ContextWrapper.enforceCallingPermission(ContextWrapper.java:750)
                      at com.android.internal.telephony.IccSmsInterfaceManager.sendText(IccSmsInterfaceManager.java:410)
                      at com.android.internal.telephony.UiccSmsController.sendTextForSubscriber(UiccSmsController.java:136)
                      at android.telephony.SmsManager.sendTextMessageInternal(SmsManager.java:366)
                      at android.telephony.SmsManager.sendTextMessage(SmsManager.java:349)
                      at com.rawinc.smsapp.ui.telephony.TelephonyFragment$2.run(TelephonyFragment.java:230)
                      at java.lang.Thread.run(Thread.java:764)
                      at com.rawinc.smsapp.ui.telephony.TelephonyFragment.sendMessage(TelephonyFragment.java:233)
                      at com.rawinc.smsapp.ui.telephony.TelephonyFragment.startAutoMsg(TelephonyFragment.java:517)
                      at com.rawinc.smsapp.ui.telephony.TelephonyFragment.toggleAutoMsg(TelephonyFragment.java:507)
                      at com.rawinc.smsapp.ui.telephony.TelephonyFragment.lambda$-com_rawinc_smsapp_ui_telephony_TelephonyFragment_11555(TelephonyFragment.java:359)
                      at com.rawinc.smsapp.ui.telephony.-$Lambda$uKVldJdEkN_fZa3QWm3EZHDa2r8$2.$m$0(Unknown Source:4)
                      at com.rawinc.smsapp.ui.telephony.-$Lambda$uKVldJdEkN_fZa3QWm3EZHDa2r8$2.onClick(Unknown Source:0)
                      at android.view.View.performClick(View.java:6178)
                      at android.view.View$PerformClick.run(View.java:24416)
                      at android.os.Handler.handleCallback(Handler.java:769)
                      at android.os.Handler.dispatchMessage(Handler.java:98)
                      at android.os.Looper.loop(Looper.java:255)
                      at android.app.ActivityThread.main(ActivityThread.java:6555)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

Answer 1

你需要处理onRequestPermissionResult

@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if(grantResults[0]== PackageManager.PERMISSION_GRANTED){
            Log.v("======>","Permission: "+permissions[0]+ "was "+grantResults[0]);
            //your task
        }
    }

并检查版本

if (Build.VERSION.SDK_INT >= 23) {
            if (checkSelfPermission(android.Manifest.permission.SEND_SMS)
                    == PackageManager.PERMISSION_GRANTED) {
                Log.v("======>","Permission is granted");
                return true;
            } else {

                Log.v("======>","Permission is revoked");
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.SEND_SMS}, 1);
                return false;
            }
        }
        else { //permission is automatically granted on sdk<23 upon installation
            Log.v("======>","Permission is granted");
            return true;
        }

并发送消息使用

private void sendMessage() {
        try {
            SmsManager smsManager = SmsManager.getDefault();
            smsManager.sendTextMessage(number, null, "TXt", null, null);
            Toast.makeText(getApplicationContext(), "Message Sent",
                    Toast.LENGTH_LONG).show();
        } catch (Exception ex) {
            Toast.makeText(getApplicationContext(),ex.getMessage().toString(),
                    Toast.LENGTH_LONG).show();
            ex.printStackTrace();
        }
    }