limit max resolution as set in Settings

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

@@ -37,4 +37,12 @@ public class Config {
     public void setForceRatioEnabled(boolean enabled) {
         mPrefs.edit().putBoolean(Constants.FORCE_RATIO, enabled).apply();
     }
+
+    public int getMaxResolution() {
+        return mPrefs.getInt(Constants.MAX_RESOLUTION, 1);
+    }
+
+    public void setMaxResolution(int maxRes) {
+        mPrefs.edit().putInt(Constants.MAX_RESOLUTION, maxRes).apply();
+    }
 }

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

@@ -10,4 +10,5 @@ public class Constants {
     public static final String LONG_TAP = "long_tap";
     public static final String FOCUS_BEFORE_CAPTURE = "focus_before_capture";
     public static final String FORCE_RATIO = "force_ratio";
+    public static final String MAX_RESOLUTION = "max_resolution";
 }

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

@@ -256,12 +256,13 @@ public class Preview extends ViewGroup implements SurfaceHolder.Callback, View.O
     };
 
     private Camera.Size getOptimalPictureSize() {
+        final int maxResolution = getMaxResolution();
         final List<Camera.Size> sizes = mParameters.getSupportedPictureSizes();
         Camera.Size maxSize = sizes.get(0);
         for (Camera.Size size : sizes) {
-            final boolean isEightMegapixelsMax = isEightMegapixelsMax(size);
             final boolean isProperRatio = isProperRatio(size);
-            if (isEightMegapixelsMax && isProperRatio) {
+            final boolean isProperResolution = isProperResolution(size, maxResolution);
+            if (isProperResolution && isProperRatio) {
                 maxSize = size;
                 break;
             }
@@ -269,8 +270,20 @@ public class Preview extends ViewGroup implements SurfaceHolder.Callback, View.O
         return maxSize;
     }
 
-    private boolean isEightMegapixelsMax(Camera.Size size) {
-        return size.width * size.height < 9000000;
+    private int getMaxResolution() {
+        final int maxRes = Config.newInstance(getContext()).getMaxResolution();
+        switch (maxRes) {
+            case 0:
+                return 6000000;
+            case 1:
+                return 9000000;
+            default:
+                return 0;
+        }
+    }
+
+    private boolean isProperResolution(Camera.Size size, int maxRes) {
+        return maxRes == 0 || size.width * size.height < maxRes;
     }
 
     private boolean isProperRatio(Camera.Size size) {

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

@@ -2,6 +2,7 @@ package com.simplemobiletools.camera.activities;
 
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.AppCompatSpinner;
 import android.support.v7.widget.SwitchCompat;
 
 import com.simplemobiletools.camera.Config;
@@ -10,11 +11,13 @@ import com.simplemobiletools.camera.R;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.OnItemSelected;
 
 public class SettingsActivity extends AppCompatActivity {
     @BindView(R.id.settings_long_tap) SwitchCompat mLongTapSwitch;
     @BindView(R.id.settings_focus_before_capture) SwitchCompat mFocusBeforeCaptureSwitch;
     @BindView(R.id.settings_force_ratio) SwitchCompat mForceRatioSwitch;
+    @BindView(R.id.settings_max_resolution) AppCompatSpinner mMaxResolutionSpinner;
 
     private static Config mConfig;
 
@@ -28,6 +31,7 @@ public class SettingsActivity extends AppCompatActivity {
         setupLongTap();
         setupFocusBeforeCapture();
         setupForceRatio();
+        setupMaxResolution();
     }
 
     private void setupLongTap() {
@@ -42,6 +46,10 @@ public class SettingsActivity extends AppCompatActivity {
         mForceRatioSwitch.setChecked(mConfig.getForceRatioEnabled());
     }
 
+    private void setupMaxResolution() {
+        mMaxResolutionSpinner.setSelection(mConfig.getMaxResolution());
+    }
+
     @OnClick(R.id.settings_long_tap_holder)
     public void handleLongTapToTrigger() {
         mLongTapSwitch.setChecked(!mLongTapSwitch.isChecked());
@@ -59,4 +67,9 @@ public class SettingsActivity extends AppCompatActivity {
         mForceRatioSwitch.setChecked(!mForceRatioSwitch.isChecked());
         mConfig.setForceRatioEnabled(mForceRatioSwitch.isChecked());
     }
+
+    @OnItemSelected(R.id.settings_max_resolution)
+    public void handleMaxResolution() {
+        mConfig.setMaxResolution(mMaxResolutionSpinner.getSelectedItemPosition());
+    }
 }

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

@@ -85,7 +85,7 @@
     </RelativeLayout>
 
     <RelativeLayout
-        android:id="@+id/settings_max_size_holder"
+        android:id="@+id/settings_max_resolution_holder"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="@dimen/settings_padding"
@@ -93,7 +93,7 @@
         android:padding="@dimen/activity_margin">
 
         <TextView
-            android:id="@+id/settings_max_size_label"
+            android:id="@+id/settings_max_resolution_label"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_centerVertical="true"
@@ -101,11 +101,11 @@
             android:text="@string/max_size"/>
 
         <android.support.v7.widget.AppCompatSpinner
-            android:id="@+id/settings_max_size"
+            android:id="@+id/settings_max_resolution"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentRight="true"
-            android:entries="@array/max_sizes"/>
+            android:entries="@array/max_resolutions"/>
 
     </RelativeLayout>
 </LinearLayout>

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

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string-array name="max_sizes">
+    <string-array name="max_resolutions">
         <item>5 MP</item>
         <item>8 MP</item>
         <item>@string/no_limit</item>