fixed few bugs; new screenshots; some changes in home screen (#550)

README.md

@@ -41,7 +41,9 @@ You can also join the Images To PDF Team on Slack [https://imagestopdf.slack.com
 - Extract images from PDF
 - History : View all the PDF related conversions
 
-<img src="./screenshots/0_navigation.png" width="190px">
+Here is a home page to get quick access to all the features "PDF Converter" provides:
+
+<img src="./screenshots/0_1_home.png" width="190px"> <img src="./screenshots/0_2_home.png" width="190px">
 
 ### Creating a PDF file
 

app/src/main/java/swati4star/createpdf/activity/CropImageActivity.java

@@ -80,6 +80,12 @@ public void cropButtonClicked() {
         String root = Environment.getExternalStorageDirectory().toString();
         File myDir = new File(root + pdfDirectory);
         Uri uri = mCropImageView.getImageUri();
+
+        if (uri == null) {
+            showSnackbar(this, R.string.error_occurred);
+            return;
+        }
+
         String path = uri.getPath();
         String fname = "cropped_im";
         if (path != null)

app/src/main/java/swati4star/createpdf/fragment/RemovePagesFragment.java

@@ -216,7 +216,7 @@ else if (mPath != null)
                 // close the renderer
                 renderer.close();
             }
-        } catch (IOException | SecurityException | IllegalArgumentException e) {
+        } catch (IOException | SecurityException | IllegalArgumentException | OutOfMemoryError e) {
             e.printStackTrace();
         }
 

app/src/main/res/drawable/ic_arrow_upward_white.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M4,12l1.41,1.41L11,7.83V20h2V7.83l5.58,5.59L20,12l-8,-8 -8,8z"/>
+</vector>

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

@@ -155,13 +155,6 @@
             android:layout_height="wrap_content"
             android:orientation="horizontal">
 
-            <swati4star.createpdf.customviews.MyCardView
-                android:id="@+id/remove_duplicates_pages_pdf"
-                android:layout_width="0dp"
-                android:layout_height="match_parent"
-                android:layout_weight="1.0"
-                app:option_icon="@drawable/fp_ic_action_up"
-                app:option_text="@string/remove_duplicate_pages" />
 
             <swati4star.createpdf.customviews.MyCardView
                 android:id="@+id/merge_pdf"
@@ -179,6 +172,21 @@
                 app:option_icon="@drawable/ic_call_split_black_24dp"
                 app:option_text="@string/split_pdf" />
 
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <swati4star.createpdf.customviews.MyCardView
+                android:id="@+id/remove_duplicates_pages_pdf"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1.0"
+                app:option_icon="@drawable/ic_arrow_upward_white"
+                app:option_text="@string/remove_duplicate_pages" />
+
             <swati4star.createpdf.customviews.MyCardView
                 android:id="@+id/compress_pdf"
                 android:layout_width="0dp"