Added search clear text

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

@@ -0,0 +1,89 @@
+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 2018-2021 by Marcel Bokhorst (M66B)
+*/
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatAutoCompleteTextView;
+
+public class TextViewAutoCompleteClearable extends AppCompatAutoCompleteTextView {
+    private Drawable drawable = null;
+
+    public TextViewAutoCompleteClearable(@NonNull Context context) {
+        super(context);
+        init();
+    }
+
+    public TextViewAutoCompleteClearable(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public TextViewAutoCompleteClearable(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    public void init() {
+        drawable = getContext().getDrawable(R.drawable.twotone_close_24);
+        drawable.setTint(getCurrentTextColor());
+        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+
+        setOnTouchListener(new OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                if (getCompoundDrawables()[2] == null)
+                    return false;
+                if (event.getAction() != MotionEvent.ACTION_UP)
+                    return false;
+                if (event.getX() > getWidth() - getPaddingRight() - drawable.getIntrinsicWidth()) {
+                    setText("");
+                    setCompoundDrawables(null, null, null, null);
+                }
+                return false;
+            }
+        });
+
+        addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+                // Do nothing
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                setCompoundDrawablesRelative(null, null, s.length() > 0 ? drawable : null, null);
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                // Do nothing
+            }
+        });
+    }
+}

app/src/main/res/layout/dialog_search.xml

@@ -89,7 +89,7 @@
             app:layout_constraintTop_toBottomOf="@id/tvCaption"
             app:srcCompat="@drawable/twotone_info_24" />
 
-        <AutoCompleteTextView
+        <eu.faircode.email.TextViewAutoCompleteClearable
             android:id="@+id/etQuery"
             android:layout_width="0dp"
             android:layout_height="wrap_content"