-Bug fixed

Author: smhdk

app/src/main/java/com/hololo/tutorial/sample/MainActivity.java

@@ -3,6 +3,7 @@
 import android.Manifest;
 import android.graphics.Color;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.view.View;
 import android.widget.Toast;
 
@@ -19,11 +20,45 @@ public class MainActivity extends TutorialActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        addFragment(new PermissionStep.Builder().setPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}).setTitle(getString(R.string.permission_title)).setContent(getString(R.string.permission_detail)).setBackgroundColor(Color.parseColor("#FF0957")).setDrawable(R.drawable.ss_1).setSummary(getString(R.string.continue_and_learn)).build());
-        addFragment(new Step.Builder().setTitle(getString(R.string.automatic_data)).setContent(getString(R.string.gm_finds_photos)).setBackgroundColor(Color.parseColor("#FF0957")).setDrawable(R.drawable.ss_1).setSummary(getString(R.string.continue_and_learn)).build());
-        addFragment(new Step.Builder().setTitle(getString(R.string.choose_the_song)).setContent(getString(R.string.swap_to_the_tab)).setBackgroundColor(Color.parseColor("#00D4BA")).setDrawable(R.drawable.ss_2).setSummary(getString(R.string.continue_and_update)).build());
-        addFragment(new Step.Builder().setTitle(getString(R.string.edit_data)).setContent(getString(R.string.update_easily)).setBackgroundColor(Color.parseColor("#1098FE")).setDrawable(R.drawable.ss_3).setSummary(getString(R.string.continue_and_result)).build());
-        addFragment(new Step.Builder().setTitle(getString(R.string.result_awesome)).setContent(getString(R.string.after_updating)).setBackgroundColor(Color.parseColor("#CA70F3")).setDrawable(R.drawable.ss_4).setSummary(getString(R.string.thank_you)).build());
+        addFragment(new PermissionStep.Builder()
+                .setPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE})
+                .setTitle(getString(R.string.permission_title)).setContent(getString(R.string.permission_detail))
+                .setBackgroundColor(Color.parseColor("#FF0957"))
+                .setDrawable(R.drawable.ss_1)
+                .setSummary(getString(R.string.continue_and_learn))
+                .build());
+
+        addFragment(new Step.Builder()
+                .setTitle(getString(R.string.automatic_data))
+                .setContent(getString(R.string.gm_finds_photos))
+                .setBackgroundColor(Color.parseColor("#FF0957"))
+                .setDrawable(R.drawable.ss_1)
+                .setSummary(getString(R.string.continue_and_learn))
+                .build());
+
+        addFragment(new Step.Builder()
+                .setTitle(getString(R.string.choose_the_song))
+                .setContent(getString(R.string.swap_to_the_tab))
+                .setBackgroundColor(Color.parseColor("#00D4BA"))
+                .setDrawable(R.drawable.ss_2)
+                .setSummary(getString(R.string.continue_and_update))
+                .build());
+
+        addFragment(new Step.Builder()
+                .setTitle(getString(R.string.edit_data))
+                .setContent(getString(R.string.update_easily))
+                .setBackgroundColor(Color.parseColor("#1098FE"))
+                .setDrawable(R.drawable.ss_3)
+                .setSummary(getString(R.string.continue_and_result))
+                .build());
+
+        addFragment(new Step.Builder()
+                .setTitle(getString(R.string.result_awesome))
+                .setContent(getString(R.string.after_updating))
+                .setBackgroundColor(Color.parseColor("#CA70F3"))
+                .setDrawable(R.drawable.ss_4)
+                .setSummary(getString(R.string.thank_you))
+                .build());
 
     }
 
@@ -39,12 +74,14 @@ public void cancelTutorial() {
 
     @Override
     public void currentFragmentPosition(int position) {
-        Toast.makeText(this,"Position : " + position,Toast.LENGTH_SHORT).show();
+        Toast.makeText(this, "Position : " + position, Toast.LENGTH_SHORT).show();
     }
 
     @Override
-    public void currentFragmentView(View view, String tag) {
+    public void currentFragmentView(@Nullable View view, @Nullable String tag) {
         currentFragmentView = view;
         currentFragmentTag = tag;
     }
+
+
 }

library/src/main/java/com/hololo/tutorial/library/CurrentFragmentListener.java

@@ -1,9 +1,10 @@
 package com.hololo.tutorial.library;
 
+import android.support.annotation.Nullable;
 import android.view.View;
 
 public interface CurrentFragmentListener {
     void currentFragmentPosition(int position);
 
-    void currentFragmentView(View view, String position);
+    void currentFragmentView(@Nullable View view, @Nullable String tag);
 }

library/src/main/java/com/hololo/tutorial/library/TutorialActivity.java

@@ -22,7 +22,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-public abstract class TutorialActivity extends AppCompatActivity implements View.OnClickListener,CurrentFragmentListener {
+public abstract class TutorialActivity extends AppCompatActivity implements View.OnClickListener, CurrentFragmentListener {
 
     private List<Step> steps;
     private StepPagerAdapter adapter;