Add and delete buttons

Ganttproject_mobile/app/build.gradle

@@ -3,9 +3,10 @@ apply plugin: 'com.google.protobuf'
 
 android {
     compileSdkVersion 27
+    buildToolsVersion "27.0.3"
     defaultConfig {
         applicationId "com.bardsoftware.ganttproject_mobile"
-        minSdkVersion 15
+        minSdkVersion 23
         targetSdkVersion 27
         versionCode 1
         versionName "1.0"
@@ -19,6 +20,9 @@ android {
     }
 }
 
+/*sourceSets {
+    main.java.srcDirs += "${protobuf.generatedFilesBaseDir}/main/javalite"
+}*/
 protobuf {
     protoc {
         artifact = 'com.google.protobuf:protoc:3.0.0'
@@ -34,7 +38,7 @@ protobuf {
                 remove java
             }
             task.plugins {
-                javalite { }
+                javalite {}
             }
         }
     }
@@ -44,9 +48,21 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:27.1.1'
     implementation 'com.android.support.constraint:constraint-layout:1.1.0'
-    testImplementation 'junit:junit:4.12'
+    implementation 'com.android.support:design:27.1.1'
+
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    implementation 'com.android.support:recyclerview-v7:27.1.1'
+
+    implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
     implementation 'com.google.protobuf:protobuf-lite:3.0.0'
+
+    implementation 'com.jakewharton:butterknife:8.8.1'
+    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
+
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.1', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
 }

Ganttproject_mobile/app/src/main/AndroidManifest.xml

@@ -2,6 +2,11 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.bardsoftware.ganttproject_mobile">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <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"
@@ -16,6 +21,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".TasksActivity" />
     </application>
 
 </manifest>

Ganttproject_mobile/app/src/main/java/com/bardsoftware/ganttproject_mobile/Constants.java

@@ -0,0 +1,5 @@
+package com.bardsoftware.ganttproject_mobile;
+
+public class Constants {
+    public static final String FILE_PATH = "FilePath";
+}

Ganttproject_mobile/app/src/main/java/com/bardsoftware/ganttproject_mobile/MainActivity.java

@@ -7,7 +7,7 @@
 
 public class MainActivity extends AppCompatActivity {
 
-    private static final int OPEN_FILE_CODE = 100 ;
+    private static final int OPEN_FILE_CODE = 100;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -16,14 +16,20 @@ protected void onCreate(Bundle savedInstanceState) {
     }
 
     public void openProtoFile(View view) {
-        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
-        intent.setType("*/*");
+        Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+        intent.setType("application/octet-stream");
         startActivityForResult(intent, OPEN_FILE_CODE);
     }
+
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        if (requestCode == OPEN_FILE_CODE && resultCode == RESULT_OK && data != null)
-        { String filePath = data.getDataString();
-        // do somthing...
+        if (requestCode == OPEN_FILE_CODE && resultCode == RESULT_OK && data != null) {
+            String filePath = data.getDataString();
+            Bundle b = new Bundle();
+            b.putString(Constants.FILE_PATH, filePath);
+            Class TasksActivity = TasksActivity.class;
+            Intent intent = new Intent(this, TasksActivity);
+            intent.putExtras(b);
+            startActivity(intent);
         }
         super.onActivityResult(requestCode, resultCode, data);
 

Ganttproject_mobile/app/src/main/java/com/bardsoftware/ganttproject_mobile/TaskAdapter.java

@@ -0,0 +1,134 @@
+package com.bardsoftware.ganttproject_mobile;
+
+import android.content.Context;
+import android.graphics.Paint;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.RecyclerView;
+import android.util.SparseBooleanArray;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.ImageButton;
+import android.widget.TextView;
+import android.view.View.OnClickListener;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+
+import static dataformat.Dataformat.Task;
+import static dataformat.Dataformat.Tasks;
+
+public class TaskAdapter extends RecyclerView.Adapter<TaskAdapter.TaskViewHolder> {
+    private Tasks.Builder tasksBuilder;
+    private SparseBooleanArray taskStateArray = new SparseBooleanArray();
+    private int currentSelectedPosition = RecyclerView.NO_POSITION;
+
+    @NonNull
+    @Override
+    public TaskViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        Context context = parent.getContext();
+        LayoutInflater inflater = LayoutInflater.from(context);
+        View view = inflater.inflate(R.layout.task_row, parent, false);
+        return new TaskAdapter.TaskViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull TaskViewHolder holder, final int position) {
+        if (tasksBuilder == null) return;
+        String taskName = tasksBuilder.getTask(position).getName();
+        boolean itemIsChecked = tasksBuilder.getTask(position).getIsDone();
+        taskStateArray.append(position, itemIsChecked);
+        holder.taskView.setText(taskName);
+        holder.taskCheckbox.setChecked(itemIsChecked);
+        if (itemIsChecked) {
+            holder.taskView.setPaintFlags(holder.taskView.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+        } else
+            holder.taskView.setPaintFlags(holder.taskView.getPaintFlags() & (~Paint.STRIKE_THRU_TEXT_FLAG));
+        if (currentSelectedPosition == position) {
+            holder.deleteButton.setVisibility(View.VISIBLE);
+            holder.deleteButton.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    tasksBuilder.removeTask(position);
+                    taskStateArray.delete(position);
+                    notifyDataSetChanged();
+
+                }
+            });
+        } else {
+            holder.deleteButton.setVisibility(View.GONE);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        if (tasksBuilder == null) return 0;
+        return tasksBuilder.getTaskCount();
+    }
+
+    public void setData(Tasks tasks1) {
+        tasksBuilder = tasks1.toBuilder();
+        notifyDataSetChanged();
+    }
+
+    public Tasks getTasks() {
+        Tasks.Builder tasks1 = Tasks.newBuilder();
+        for (int i = 0; i < getItemCount(); i++) {
+            Task task = Task.newBuilder()
+                    .setName(tasksBuilder.getTask(i).getName())
+                    .setIsDone(tasksBuilder.getTask(i).getIsDone())
+                    .build();
+            tasks1.addTask(task);
+        }
+        return tasks1.build();
+    }
+
+    public void addTask(String name) {
+        Task task = Task.newBuilder().setName(name).setIsDone(false).build();
+        tasksBuilder.addTask(task);
+        taskStateArray.append(tasksBuilder.getTaskCount(), false);
+        notifyDataSetChanged();
+    }
+
+    public class TaskViewHolder extends RecyclerView.ViewHolder {
+        @BindView(R.id.task_textview)
+        TextView taskView;
+        @BindView(R.id.task_checkbox)
+        CheckBox taskCheckbox;
+        @BindView(R.id.delete_task_button)
+        ImageButton deleteButton;
+
+        TaskViewHolder(View view) {
+            super(view);
+            ButterKnife.bind(this, view);
+            taskView.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    currentSelectedPosition = getAdapterPosition();
+                    notifyDataSetChanged();
+                }
+            });
+            taskCheckbox.setOnClickListener(new OnClickListener() {
+                public void onClick(View v) {
+                    int adapterPosition = getAdapterPosition();
+                    if (!taskStateArray.get(adapterPosition, false)) {
+                        taskCheckbox.setChecked(true);
+                        taskView.setPaintFlags(taskView.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+                        taskStateArray.put(adapterPosition, true);
+                        Task task1 = Task.newBuilder().setName(tasksBuilder.getTask(adapterPosition).getName()).setIsDone(true).build();
+                        tasksBuilder.setTask(adapterPosition, task1);
+                    } else {
+                        taskCheckbox.setChecked(false);
+                        taskStateArray.put(adapterPosition, false);
+                        taskView.setPaintFlags(taskView.getPaintFlags() & (~Paint.STRIKE_THRU_TEXT_FLAG));
+                        Task task1 = Task.newBuilder().setName(tasksBuilder.getTask(adapterPosition).getName()).setIsDone(false).build();
+                        tasksBuilder.setTask(adapterPosition, task1);
+                    }
+                    currentSelectedPosition = getAdapterPosition();
+                    notifyDataSetChanged();
+                }
+            });
+        }
+    }
+}