Add remove option on watchlist

app/src/main/java/com/nauk/coinfolio/Activities/HomeActivityFragments/Watchlist.java

@@ -8,18 +8,17 @@ import android.graphics.PorterDuff;
 import android.graphics.PorterDuffColorFilter;
 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
-import android.support.design.widget.AppBarLayout;
 import android.support.v4.app.Fragment;
 import android.os.Bundle;
-import android.support.v4.view.ViewPager;
 import android.support.v4.widget.SwipeRefreshLayout;
 import android.support.v7.graphics.Palette;
 import android.support.v7.widget.CardView;
+import android.util.DisplayMetrics;
 import android.util.Log;
+import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.ViewParent;
 import android.view.animation.Animation;
 import android.view.animation.Transformation;
 import android.widget.Button;
@@ -28,7 +27,6 @@ import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
 import android.widget.TextView;
-import android.support.v7.widget.Toolbar;
 
 import com.github.mikephil.charting.charts.LineChart;
 import com.github.mikephil.charting.data.Entry;
@@ -43,6 +41,7 @@ import com.nauk.coinfolio.DataManagers.CurrencyData.Currency;
 import com.nauk.coinfolio.DataManagers.CurrencyData.CurrencyDataChart;
 import com.nauk.coinfolio.DataManagers.CurrencyData.CurrencyDetailsList;
 import com.nauk.coinfolio.DataManagers.CurrencyData.CurrencyTickerList;
+import com.nauk.coinfolio.DataManagers.DatabaseManager;
 import com.nauk.coinfolio.DataManagers.PreferencesManager;
 import com.nauk.coinfolio.DataManagers.WatchlistManager;
 import com.nauk.coinfolio.PlaceholderManager;
@@ -77,6 +76,7 @@ public class Watchlist extends Fragment {
     private CurrencyTickerList currencyTickerList;
     private boolean tickerUpdated;
     private boolean detailsUpdated;
+    private boolean editModeEnabled;
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
@@ -99,6 +99,8 @@ public class Watchlist extends Fragment {
             }
         });
 
+        editModeEnabled = false;
+
         watchlistManager = new WatchlistManager(getContext());
 
         updateWatchlist(true);
@@ -121,7 +123,6 @@ public class Watchlist extends Fragment {
         });
 
         ImageButton settingsButton = view.findViewById(R.id.settings_button);
-
         settingsButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
@@ -130,6 +131,33 @@ public class Watchlist extends Fragment {
             }
         });
 
+        ImageButton editButton = view.findViewById(R.id.edit_button);
+        editButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                if(editModeEnabled)
+                {
+                    editModeEnabled = false;
+
+                    for(int i = 0; i < ((LinearLayout) Watchlist.this.view.findViewById(R.id.linearLayoutWatchlist)).getChildCount(); i++)
+                    {
+                        ((LinearLayout) Watchlist.this.view.findViewById(R.id.linearLayoutWatchlist)).getChildAt(i).setClickable(true);
+                        collapseW(((LinearLayout) Watchlist.this.view.findViewById(R.id.linearLayoutWatchlist)).getChildAt(i).findViewById(R.id.deleteCardWatchlist));
+                    }
+                }
+                else
+                {
+                    editModeEnabled = true;
+
+                    for(int i = 0; i < ((LinearLayout) Watchlist.this.view.findViewById(R.id.linearLayoutWatchlist)).getChildCount(); i++)
+                    {
+                        ((LinearLayout) Watchlist.this.view.findViewById(R.id.linearLayoutWatchlist)).getChildAt(i).setClickable(false);
+                        expandW(((LinearLayout) Watchlist.this.view.findViewById(R.id.linearLayoutWatchlist)).getChildAt(i).findViewById(R.id.deleteCardWatchlist));
+                    }
+                }
+            }
+        });
+
         return view;
     }
 
@@ -172,6 +200,31 @@ public class Watchlist extends Fragment {
         v.startAnimation(a);
     }
 
+    private static void expandW(final View v) {
+        v.measure(CardView.LayoutParams.MATCH_PARENT, CardView.LayoutParams.WRAP_CONTENT);
+        final int targetWidth = v.getMeasuredWidth();
+
+        v.getLayoutParams().width = 1;
+        v.setVisibility(View.VISIBLE);
+        Animation a = new Animation() {
+            @Override
+            protected void applyTransformation(float interpolatedTime, Transformation t) {
+                v.getLayoutParams().width = interpolatedTime == 1
+                        ? CardView.LayoutParams.WRAP_CONTENT
+                        : (int)(targetWidth * interpolatedTime);
+                v.requestLayout();
+            }
+
+            @Override
+            public boolean willChangeBounds() {
+                return true;
+            }
+        };
+
+        a.setDuration((int)(targetWidth / v.getContext().getResources().getDisplayMetrics().density));
+        v.startAnimation(a);
+    }
+
     private static void collapse(final View v) {
         final int initialHeight = v.getMeasuredHeight();
 
@@ -198,6 +251,30 @@ public class Watchlist extends Fragment {
         v.startAnimation(a);
     }
 
+    private static void collapseW(final View v) {
+        final int initialWidth = v.getMeasuredWidth();
+
+        Animation a = new Animation() {
+            @Override
+            protected void applyTransformation(float interpolatedTime, Transformation t) {
+                if(interpolatedTime == 1) {
+                    v.setVisibility(View.GONE);
+                } else {
+                    v.getLayoutParams().width = initialWidth - (int)(initialWidth * interpolatedTime);
+                    v.requestLayout();
+                }
+            }
+
+            @Override
+            public boolean willChangeBounds() {
+                return true;
+            }
+        };
+
+        a.setDuration((int)(initialWidth / v.getContext().getResources().getDisplayMetrics().density));
+        v.startAnimation(a);
+    }
+
 
     @Override
     public void onResume()
@@ -301,7 +378,9 @@ public class Watchlist extends Fragment {
 
     private View getCurrencyCardFor(final Currency currency)
     {
-        View card = LayoutInflater.from(getContext()).inflate(R.layout.cardview_watchlist, null);
+        final View card = LayoutInflater.from(getContext()).inflate(R.layout.cardview_watchlist, null);
+
+        card.setTag(currency.getSymbol());
 
         ((TextView) card.findViewById(R.id.currencyFluctuationTextView))
                 .setText(PlaceholderManager.getValueParenthesisString(numberConformer(currency.getDayFluctuation()), getActivity()));
@@ -328,6 +407,15 @@ public class Watchlist extends Fragment {
         progressDrawable.setColorFilter(new PorterDuffColorFilter(currency.getChartColor(), PorterDuff.Mode.SRC_IN));
         progressDrawable.invalidateSelf();
 
+        card.findViewById(R.id.deleteCardWatchlist).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                collapse(card);
+                DatabaseManager databaseManager = new DatabaseManager(getActivity());
+                databaseManager.deleteCurrencyFromWatchlist(currency.getSymbol());
+            }
+        });
+
         updateColor(card, currency);
 
         card.findViewById(R.id.LineChartView).setOnClickListener(new View.OnClickListener() {

app/src/main/java/com/nauk/coinfolio/DataManagers/DatabaseManager.java

@@ -103,6 +103,13 @@ public class DatabaseManager extends SQLiteOpenHelper{
         db.close();
     }
 
+    public int deleteCurrencyFromWatchlist(String symbol)
+    {
+        SQLiteDatabase db = this.getWritableDatabase();
+
+        return db.delete(TABLE_WATCHLIST, KEY_WATCHLIST_SYMBOL + " = '" + symbol + "'", null);
+    }
+
     public List<Currency> getAllCurrenciesFromWatchlist()
     {
         String searchQuerry = "SELECT * FROM " + TABLE_WATCHLIST;

app/src/main/res/drawable/ic_mode_edit_white_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z"/>
+</vector>

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

@@ -5,7 +5,8 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:clickable="true"
     android:focusable="true"
-    android:paddingBottom="4dp">
+    android:paddingBottom="4dp"
+    android:tag="ParentCon">
 
     <android.support.v7.widget.CardView
         android:layout_width="match_parent"
@@ -14,7 +15,13 @@
         android:clickable="false"
         android:backgroundTint="@color/listBackground2"
         app:cardCornerRadius="2dp"
-        app:layout_constraintBottom_toBottomOf="parent">
+        app:layout_constraintBottom_toBottomOf="parent"
+        android:tag="Parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
 
             <LinearLayout
                 android:id="@+id/mainLinear"
@@ -25,11 +32,18 @@
                 android:tag="mainLinear">
 
                 <LinearLayout
-                android:id="@+id/currencyInfoLayout"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:baselineAligned="false">
+
+                    <LinearLayout
+                        android:id="@+id/currencyInfoLayout"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
                         android:layout_margin="5dp"
-                android:orientation="vertical">
+                        android:orientation="vertical"
+                        android:layout_weight="0.92">
 
                         <LinearLayout
                             android:id="@+id/topLayout"
@@ -105,6 +119,28 @@
 
                     </LinearLayout>
 
+                    <LinearLayout
+                        android:id="@+id/deleteCardWatchlist"
+                        android:layout_width="0dp"
+                        android:layout_height="match_parent"
+                        android:background="@color/decreaseCandle"
+                        android:gravity="center"
+                        android:layout_gravity="end"
+                        android:visibility="gone"
+                        android:layout_weight="0.08"
+                        android:orientation="vertical">
+
+                        <ImageView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:background="@drawable/ic_delete_white_24dp"
+                            android:clickable="false"
+                            android:focusable="false"/>
+
+                    </LinearLayout>
+
+                </LinearLayout>
+
                 <LinearLayout
                     android:id="@+id/collapsableLayout"
                     android:layout_width="match_parent"
@@ -179,6 +215,8 @@
 
             </LinearLayout>
 
+        </LinearLayout>
+
     </android.support.v7.widget.CardView>
 
 </android.support.constraint.ConstraintLayout>

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

@@ -6,8 +6,8 @@
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="horizontal"
+        android:orientation="horizontal">
-        >
+
         <LinearLayout
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"

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

@@ -22,6 +22,16 @@
                 app:layout_collapseMode="pin"
                 android:layout_margin="10dp">
 
+                <ImageButton
+                    android:id="@+id/edit_button"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/action_edit_mode"
+                    android:background="@drawable/ic_mode_edit_white_24dp"
+                    android:visibility="visible"
+                    android:layout_gravity="start"
+                    android:contentDescription="Edit mode"/>
+
                 <TextView
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"

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

@@ -1,6 +1,7 @@
 <resources>
     <string name="app_name">Coinfolio</string>
     <string name="action_settings">Settings</string>
+    <string name="action_edit_mode">Edit mode</string>
     <string name="donation">Fais un don wallah</string>
     <string name="debug">Coinfolio_debug</string>
     <string name="debug_volley">Coinfolio_debugVolley</string>