Permission Step added,

Indicator drawables change function added

Author: msayan

app/src/main/AndroidManifest.xml

@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.hololo.tutorial.sample">
 
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

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

@@ -1,9 +1,11 @@
 package com.hololo.tutorial.sample;
 
+import android.Manifest;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.widget.Toast;
 
+import com.hololo.tutorial.library.PermissionStep;
 import com.hololo.tutorial.library.Step;
 import com.hololo.tutorial.library.TutorialActivity;
 
@@ -13,10 +15,12 @@ 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());
+
     }
 
     @Override

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

@@ -2,6 +2,8 @@
     <string name="app_name">Sample</string>
 
     <string name="automatic_data">Automatic Data</string>
+    <string name="permission_title">Grant Access</string>
+    <string name="permission_detail">Give Music Player access to files</string>
     <string name="choose_the_song">Choose the song</string>
     <string name="edit_data">Edit Data</string>
     <string name="result_awesome">Result is awesome!</string>

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

@@ -5,32 +5,88 @@
 
 public class Step implements Parcelable {
 
+    public static final Parcelable.Creator<Step> CREATOR = new Parcelable.Creator<Step>() {
+        @Override
+        public Step createFromParcel(Parcel source) {
+            return new Step(source);
+        }
+
+        @Override
+        public Step[] newArray(int size) {
+            return new Step[size];
+        }
+    };
     private String title;
     private String content;
     private String summary;
     private int drawable;
     private int backgroundColor;
 
+    public Step() {
+    }
+
+    protected Step(Parcel in) {
+        this.title = in.readString();
+        this.content = in.readString();
+        this.summary = in.readString();
+        this.drawable = in.readInt();
+        this.backgroundColor = in.readInt();
+    }
+
     public String getTitle() {
         return title;
     }
 
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
     public String getContent() {
         return content;
     }
 
+    public void setContent(String content) {
+        this.content = content;
+    }
+
     public int getDrawable() {
         return drawable;
     }
 
+    public void setDrawable(int drawable) {
+        this.drawable = drawable;
+    }
+
     public int getBackgroundColor() {
         return backgroundColor;
     }
 
+    public void setBackgroundColor(int backgroundColor) {
+        this.backgroundColor = backgroundColor;
+    }
+
     public String getSummary() {
         return summary;
     }
 
+    public void setSummary(String summary) {
+        this.summary = summary;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeString(this.title);
+        dest.writeString(this.content);
+        dest.writeString(this.summary);
+        dest.writeInt(this.drawable);
+        dest.writeInt(this.backgroundColor);
+    }
+
     public static class Builder {
 
         private Step step;
@@ -68,41 +124,4 @@ public Builder setBackgroundColor(int backgroundColor) {
             return this;
         }
     }
-
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    @Override
-    public void writeToParcel(Parcel dest, int flags) {
-        dest.writeString(this.title);
-        dest.writeString(this.content);
-        dest.writeString(this.summary);
-        dest.writeInt(this.drawable);
-        dest.writeInt(this.backgroundColor);
-    }
-
-    public Step() {
-    }
-
-    protected Step(Parcel in) {
-        this.title = in.readString();
-        this.content = in.readString();
-        this.summary = in.readString();
-        this.drawable = in.readInt();
-        this.backgroundColor = in.readInt();
-    }
-
-    public static final Parcelable.Creator<Step> CREATOR = new Parcelable.Creator<Step>() {
-        @Override
-        public Step createFromParcel(Parcel source) {
-            return new Step(source);
-        }
-
-        @Override
-        public Step[] newArray(int size) {
-            return new Step[size];
-        }
-    };
 }

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

@@ -2,23 +2,21 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
-public class StepFragment extends Fragment {
+public class StepFragment extends StepView {
 
     private TextView title;
     private TextView content;
     private TextView summary;
     private ImageView imageView;
     private LinearLayout layout;
 
-    private Step step;
 
     static StepFragment createFragment(Step step) {
         StepFragment fragment = new StepFragment();

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

@@ -16,7 +16,9 @@ public StepPagerAdapter(FragmentManager fm, List<Step> stepList) {
 
     @Override
     public Fragment getItem(int position) {
-        return StepFragment.createFragment(stepList.get(position));
+        Step step = stepList.get(position);
+
+        return StepFragment.createFragment(step);
     }
 
     @Override

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

@@ -1,11 +1,15 @@
 package com.hololo.tutorial.library;
 
+import android.annotation.SuppressLint;
+import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.RequiresApi;
 import android.support.v4.view.ViewPager;
 import android.support.v7.app.AppCompatActivity;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
@@ -31,14 +35,19 @@ public class TutorialActivity extends AppCompatActivity implements View.OnClickL
 
     private int currentItem;
 
-    private String prevText, nextText, finishText, cancelText;
+    private String prevText, nextText, finishText, cancelText, givePermissionText;
+    private int selectedIndicator = R.drawable.circle_black, indicator = R.drawable.circle_white;
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         setTheme(R.style.TutorialStyle);
         super.onCreate(savedInstanceState);
-
         setContentView(R.layout.activity_tutorial);
+
+        init();
+    }
+
+    private void init() {
         steps = new ArrayList<>();
         initTexts();
         initViews();
@@ -50,6 +59,7 @@ private void initTexts() {
         cancelText = "Cancel";
         finishText = "Finish";
         nextText = "Next";
+        givePermissionText = "Give";
     }
 
     private void initAdapter() {
@@ -84,6 +94,7 @@ private void changeStatusBarColor(int backgroundColor) {
 
     private void controlPosition(int position) {
         notifyIndicator();
+
         if (position == steps.size() - 1) {
             next.setText(finishText);
             prev.setText(prevText);
@@ -95,10 +106,31 @@ private void controlPosition(int position) {
             next.setText(nextText);
         }
 
+        if (controlPermission()) {
+            prepareNormalView();
+        } else {
+            preparePermissionView();
+        }
+
         containerLayout.setBackgroundColor(steps.get(position).getBackgroundColor());
         buttonContainer.setBackgroundColor(steps.get(position).getBackgroundColor());
     }
 
+    private void prepareNormalView() {
+        pager.setOnTouchListener(null);
+    }
+
+    private void preparePermissionView() {
+        next.setText(givePermissionText);
+
+        pager.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                return true;
+            }
+        });
+    }
+
     private void initViews() {
         currentItem = 0;
 
@@ -133,9 +165,9 @@ public void notifyIndicator() {
         for (int i = 0; i < steps.size(); i++) {
             ImageView imageView = new ImageView(this);
             imageView.setPadding(8, 8, 8, 8);
-            int drawable = R.drawable.circle_black;
+            int drawable = indicator;
             if (i == currentItem)
-                drawable = R.drawable.circle_white;
+                drawable = selectedIndicator;
 
             imageView.setImageResource(drawable);
 
@@ -161,17 +193,36 @@ public void onBackPressed() {
         }
     }
 
+    @SuppressLint("NewApi")
     @Override
     public void onClick(View v) {
         if (v.getId() == R.id.next) {
-            changeFragment(true);
+            if (controlPermission())
+                changeFragment(true);
+            else
+                requestPermissions(((PermissionStep) steps.get(pager.getCurrentItem())).getPermissions(), 1903);
         } else if (v.getId() == R.id.prev) {
             changeFragment(false);
         }
     }
 
     private void changeFragment(int position) {
-        pager.setCurrentItem(position, true);
+        if (controlPermission())
+            pager.setCurrentItem(position, true);
+    }
+
+    private boolean controlPermission() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && steps.get(pager.getCurrentItem()) instanceof PermissionStep) {
+
+            for (String permission : ((PermissionStep) steps.get(pager.getCurrentItem())).getPermissions()) {
+                int permissionResult = checkSelfPermission(permission);
+
+                if (permissionResult != PackageManager.PERMISSION_GRANTED) {
+                    return false;
+                }
+            }
+        }
+        return true;
     }
 
     private void changeFragment(boolean isNext) {
@@ -208,4 +259,20 @@ public void setCancelText(String text) {
         cancelText = text;
     }
 
+    public void setIndicatorSelected(int drawable) {
+        selectedIndicator = drawable;
+    }
+
+    public void setIndicator(int drawable) {
+        indicator = drawable;
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+
+        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+            changeFragment(true);
+        }
+    }
 }