added ability to change action buttons position #178

lib/src/main/java/com/soundcloud/android/crop/Crop.java

@@ -26,6 +26,20 @@ interface Extra {
         String MAX_X = "max_x";
         String MAX_Y = "max_y";
         String ERROR = "error";
+        String ACTION_BUTTONS_POSITION = "action_buttons_positions";
+    }
+
+    public enum ActionButtonsPosition {
+        TOP("TOP"), BOTTOM("BOTTOM");
+
+        private final String position;
+
+        ActionButtonsPosition(final String position) { this. position = position; }
+
+        @Override
+        public String toString() {
+            return position;
+        }
     }
 
     private Intent cropIntent;
@@ -79,6 +93,17 @@ public Crop withMaxSize(int width, int height) {
         return this;
     }
 
+    /**
+     * Set activity action buttons position: top or bottom
+     * This is optional function, ActionButtonsPosition.TOP is the default position of the buttons
+     *
+     * @param pos Enum with values: TOP, BOTTOM
+     */
+    public Crop setActionButtonsPosition(ActionButtonsPosition pos) {
+        cropIntent.putExtra(Extra.ACTION_BUTTONS_POSITION, pos.toString());
+        return this;
+    }
+
     /**
      * Send the crop Intent from an Activity
      *

lib/src/main/java/com/soundcloud/android/crop/CropImageActivity.java

@@ -33,6 +33,8 @@
 import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
+import android.widget.RelativeLayout;
+import android.widget.RelativeLayout.LayoutParams;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -126,6 +128,7 @@ private void loadInput() {
             maxX = extras.getInt(Crop.Extra.MAX_X);
             maxY = extras.getInt(Crop.Extra.MAX_Y);
             saveUri = extras.getParcelable(MediaStore.EXTRA_OUTPUT);
+            getIntentActionButtonsPosition(extras.getString(Crop.Extra.ACTION_BUTTONS_POSITION));
         }
 
         sourceUri = intent.getData();
@@ -151,6 +154,48 @@ private void loadInput() {
         }
     }
 
+    private void getIntentActionButtonsPosition(String pos) {
+        Crop.ActionButtonsPosition actionButtonsPosition =
+                pos != null ? Crop.ActionButtonsPosition.valueOf(pos) : null;
+
+        if (actionButtonsPosition != null) {
+            switch (actionButtonsPosition) {
+                case TOP:
+                    setActionButtonsPositionOnTop(true);
+                    break;
+                case BOTTOM:
+                    setActionButtonsPositionOnTop(false);
+                    break;
+            }
+        } else {
+            setActionButtonsPositionOnTop(true);
+        }
+    }
+
+    private void setActionButtonsPositionOnTop(boolean onTop) {
+        final int disabled = 0;
+        final RelativeLayout actionButtonsLayout = (RelativeLayout) findViewById(R.id.action_buttons_layout);
+
+        final LayoutParams actionButtonsParams =
+                (RelativeLayout.LayoutParams) actionButtonsLayout.getLayoutParams();
+
+        final LayoutParams imageViewParams =
+                (RelativeLayout.LayoutParams) imageView.getLayoutParams();
+
+        if (onTop) {
+            actionButtonsParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, disabled);
+            imageViewParams.addRule(RelativeLayout.ABOVE, disabled);
+            imageViewParams.addRule(RelativeLayout.BELOW, actionButtonsLayout.getId());
+        } else {
+            actionButtonsParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
+            imageViewParams.addRule(RelativeLayout.BELOW, disabled);
+            imageViewParams.addRule(RelativeLayout.ABOVE, actionButtonsLayout.getId());
+        }
+
+        actionButtonsLayout.setLayoutParams(actionButtonsParams);
+        imageView.setLayoutParams(imageViewParams);
+    }
+
     private int calculateBitmapSampleSize(Uri bitmapUri) throws IOException {
         InputStream is = null;
         BitmapFactory.Options options = new BitmapFactory.Options();

lib/src/main/res/layout/crop__activity_crop.xml

@@ -5,15 +5,22 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <include
-        android:id="@+id/done_cancel_bar"
-        layout="@layout/crop__layout_done_cancel" />
+    <RelativeLayout
+        android:id="@+id/action_buttons_layout"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="false">
+
+        <include
+            android:id="@+id/done_cancel_bar"
+            layout="@layout/crop__layout_done_cancel" />
+    </RelativeLayout>
 
     <com.soundcloud.android.crop.CropImageView
         android:id="@+id/crop_image"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:background="@drawable/crop__texture"
-        android:layout_below="@id/done_cancel_bar" />
+        android:layout_below="@id/action_buttons_layout" />
 
 </RelativeLayout>