Prevent crash

app/src/main/java/eu/faircode/email/EditTextCompose.java

@@ -32,14 +32,13 @@ import android.util.AttributeSet;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 
-import androidx.appcompat.widget.AppCompatEditText;
 import androidx.core.view.inputmethod.EditorInfoCompat;
 import androidx.core.view.inputmethod.InputConnectionCompat;
 import androidx.core.view.inputmethod.InputContentInfoCompat;
 
 import org.jsoup.nodes.Document;
 
-public class EditTextCompose extends AppCompatEditText {
+public class EditTextCompose extends FixedEditText {
     private ISelection selectionListener = null;
     private IInputContentListener inputContentListener = null;
 

app/src/main/java/eu/faircode/email/EditTextPlain.java

@@ -24,9 +24,7 @@ import android.content.ClipboardManager;
 import android.content.Context;
 import android.util.AttributeSet;
 
-import androidx.appcompat.widget.AppCompatEditText;
+public class EditTextPlain extends FixedEditText {
-
-public class EditTextPlain extends AppCompatEditText {
     public EditTextPlain(Context context) {
         super(context);
     }

app/src/main/java/eu/faircode/email/FixedEditText.java

@@ -0,0 +1,70 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    FairEmail is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2020 by Marcel Bokhorst (M66B)
+*/
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatEditText;
+
+public class FixedEditText extends AppCompatEditText {
+    public FixedEditText(@NonNull Context context) {
+        super(context);
+    }
+
+    public FixedEditText(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public FixedEditText(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public void setSelection(int index) {
+        try {
+            super.setSelection(index);
+        } catch (Throwable ex) {
+            Log.e(ex);
+            /*
+                java.lang.IndexOutOfBoundsException: setSpan (2 ... 2) ends beyond length 0
+                        at android.text.SpannableStringBuilder.checkRange(SpannableStringBuilder.java:1265)
+                        at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:684)
+                        at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:677)
+                        at android.text.Selection.setSelection(Selection.java:76)
+                        at android.widget.EditText.setSelection(EditText.java:96)
+                        at android.widget.NumberPicker$SetSelectionCommand.run(NumberPicker.java:2246)
+                        at android.os.Handler.handleCallback(Handler.java:754)
+                        at android.os.Handler.dispatchMessage(Handler.java:95)
+             */
+        }
+    }
+
+    @Override
+    public void setSelection(int start, int stop) {
+        try {
+            super.setSelection(start, stop);
+        } catch (Throwable ex) {
+            Log.e(ex);
+        }
+    }
+}