allow disabling the Long tap tp capture feature

app/src/main/java/com/simplemobiletools/camera/Config.java

@@ -0,0 +1,24 @@
+package com.simplemobiletools.camera;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+public class Config {
+    private SharedPreferences prefs;
+
+    public static Config newInstance(Context context) {
+        return new Config(context);
+    }
+
+    public Config(Context context) {
+        prefs = context.getSharedPreferences(Constants.PREFS_KEY, Context.MODE_PRIVATE);
+    }
+
+    public boolean getLongTapEnabled() {
+        return prefs.getBoolean(Constants.LONG_TAP, true);
+    }
+
+    public void setLongTapEnabled(boolean enabled) {
+        prefs.edit().putBoolean(Constants.LONG_TAP, enabled).apply();
+    }
+}

app/src/main/java/com/simplemobiletools/camera/Constants.java

@@ -4,4 +4,8 @@ public class Constants {
     public static final int ORIENT_PORTRAIT = 0;
     public static final int ORIENT_LANDSCAPE_LEFT = 1;
     public static final int ORIENT_LANDSCAPE_RIGHT = 2;
+
+    // Shared preferences
+    public static final String PREFS_KEY = "Camera";
+    public static final String LONG_TAP = "long_tap";
 }

app/src/main/java/com/simplemobiletools/camera/Preview.java

@@ -72,7 +72,6 @@ public class Preview extends ViewGroup implements SurfaceHolder.Callback, View.O
         canTakePicture = false;
         surfaceView.setOnTouchListener(this);
         surfaceView.setOnClickListener(this);
-        surfaceView.setOnLongClickListener(this);
         isFlashEnabled = false;
         isVideoMode = false;
         isSurfaceCreated = false;
@@ -143,6 +142,9 @@ public class Preview extends ViewGroup implements SurfaceHolder.Callback, View.O
             initRecorder();
         }
 
+        final boolean isLongTapEnabled = Config.newInstance(getContext()).getLongTapEnabled();
+        surfaceView.setOnLongClickListener(isLongTapEnabled ? this : null);
+
         return true;
     }
 

app/src/main/java/com/simplemobiletools/camera/SettingsActivity.java

@@ -2,15 +2,33 @@ package com.simplemobiletools.camera;
 
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.SwitchCompat;
 
+import butterknife.BindView;
 import butterknife.ButterKnife;
+import butterknife.OnClick;
 
 public class SettingsActivity extends AppCompatActivity {
+    @BindView(R.id.settings_long_tap) SwitchCompat longTapSwitch;
+
+    private static Config mConfig;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_settings);
+        mConfig = Config.newInstance(getApplicationContext());
         ButterKnife.bind(this);
+        setupLongTap();
+    }
+
+    private void setupLongTap() {
+        longTapSwitch.setChecked(mConfig.getLongTapEnabled());
+    }
+
+    @OnClick(R.id.settings_long_tap_holder)
+    public void handleLongTapToTrigger() {
+        longTapSwitch.setChecked(!longTapSwitch.isChecked());
+        mConfig.setLongTapEnabled(longTapSwitch.isChecked());
     }
 }

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

@@ -3,7 +3,31 @@
     android:id="@+id/settings_holder"
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:layout_margin="@dimen/activity_margin">
+    android:layout_height="match_parent">
 
+    <RelativeLayout
+        android:id="@+id/settings_long_tap_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/settings_padding"
+        android:background="?android:attr/selectableItemBackground"
+        android:padding="@dimen/activity_margin">
+
+        <TextView
+            android:id="@+id/settings_long_tap_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:paddingLeft="@dimen/settings_padding"
+            android:text="@string/long_tap_capture"/>
+
+        <android.support.v7.widget.SwitchCompat
+            android:id="@+id/settings_long_tap"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentRight="true"
+            android:background="@null"
+            android:clickable="false"/>
+
+    </RelativeLayout>
 </RelativeLayout>

app/src/main/res/values/dimens.xml

@@ -3,4 +3,5 @@
     <dimen name="preview_btn_margin">32dp</dimen>
     <dimen name="side_icon_padding">12dp</dimen>
     <dimen name="icon_size">56dp</dimen>
+    <dimen name="settings_padding">8dp</dimen>
 </resources>

app/src/main/res/values/strings.xml

@@ -14,6 +14,7 @@
 
     <!-- Settings -->
     <string name="settings">Settings</string>
+    <string name="long_tap_capture">Long tap to capture</string>
 
     <!-- About -->
     <string name="about">About</string>