Added ability to load files

app/src/main/java/com/wbrawner/simplemarkdown/FileUtils.java

@@ -15,6 +15,7 @@ import android.support.v7.app.AppCompatActivity;
 public class FileUtils {
 
     public static final int WRITE_PERMISSION_REQUEST = 0;
+    public static final int OPEN_FILE_REQUEST = 1;
 
     private Activity mContext;
 

app/src/main/java/com/wbrawner/simplemarkdown/MainActivity.java

@@ -44,8 +44,10 @@ implements ActivityCompat.OnRequestPermissionsResultCallback {
     public static final String AUTHORITY = "com.wbrawner.simplemarkdown.fileprovider";
     private static final int REQUEST_WRITE_STORAGE = 0;
     private static File mFilesDir;
-    @BindView(R.id.pager) ViewPager pager;
+    @BindView(R.id.pager)
-    @BindView(R.id.layout_tab) TabLayout tabLayout;
+    ViewPager pager;
+    @BindView(R.id.layout_tab)
+    TabLayout tabLayout;
 
     private static final String TAG = MainActivity.class.getSimpleName();
     private static String fileName;
@@ -178,6 +180,9 @@ implements ActivityCompat.OnRequestPermissionsResultCallback {
                     }
                 }
                 break;
+            case R.id.action_load:
+                requestOpen();
+                break;
         }
         return super.onOptionsItemSelected(item);
     }
@@ -189,6 +194,24 @@ implements ActivityCompat.OnRequestPermissionsResultCallback {
                 .sendBroadcast(saveIntent);
     }
 
+    private void requestOpen() {
+        Intent openIntent = new Intent(Intent.ACTION_GET_CONTENT);
+        openIntent.setType("*/*");
+        openIntent.addCategory(Intent.CATEGORY_OPENABLE);
+        try {
+            startActivityForResult(
+                    Intent.createChooser(
+                            openIntent,
+                            getString(R.string.open_file)
+                    ),
+                    FileUtils.OPEN_FILE_REQUEST
+            );
+        } catch (ActivityNotFoundException e) {
+            Toast.makeText(MainActivity.this, R.string.no_filebrowser, Toast.LENGTH_SHORT)
+                    .show();
+        }
+    }
+
     @Override
     public void onRequestPermissionsResult(int requestCode,
                                            String permissions[], int[] grantResults) {
@@ -256,4 +279,18 @@ implements ActivityCompat.OnRequestPermissionsResultCallback {
         else
             pager.setCurrentItem(EditPagerAdapter.FRAGMENT_EDIT);
     }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode) {
+            case FileUtils.OPEN_FILE_REQUEST:
+                if (resultCode == RESULT_OK) {
+                    Uri fileUri = data.getData();
+                    Intent loadIntent = new Intent(EditFragment.LOAD_ACTION);
+                    loadIntent.putExtra("fileUri", fileUri.toString());
+                    LocalBroadcastManager.getInstance(MainActivity.this).sendBroadcast(loadIntent);
+                }
+        }
+        super.onActivityResult(requestCode, resultCode, data);
+    }
 }

app/src/main/res/menu/menu_edit.xml

@@ -11,6 +11,11 @@
         android:id="@+id/action_share"
         android:icon="@android:drawable/ic_menu_share"
         app:showAsAction="always" />
+    <item
+    android:id="@+id/action_load"
+    android:orderInCategory="100"
+    android:title="@string/action_load"
+    app:showAsAction="never" />
     <!--<item-->
     <!--android:id="@+id/action_help"-->
     <!--android:orderInCategory="100"-->

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

@@ -16,4 +16,7 @@
     <string name="share_file">Share file to...</string>
     <string name="no_permissions">Unable to save file without permissions</string>
     <string name="file_saved">File saved to %1$s</string>
+    <string name="action_load">Load</string>
+    <string name="open_file">Select a file to open</string>
+    <string name="no_filebrowser">No file browser apps found</string>
 </resources>