graficos

app/build.gradle.kts

@@ -68,4 +68,5 @@ dependencies {
     androidTestImplementation(libs.ui.test.junit4)
     debugImplementation(libs.ui.tooling)
     debugImplementation(libs.ui.test.manifest)
+    implementation("com.github.PhilJay:MPAndroidChart:v3.1.0")
 }

app/src/main/java/com/example/lifegrid/TelaInicialActivity.java

@@ -298,6 +298,9 @@ public class TelaInicialActivity extends AppCompatActivity {
             ((HomeFragment) currentFragment).carregarDados(mesSelecionado, anoSelecionado, mesNome);
         } else if (currentFragment instanceof TransacoesFragment) {
             ((TransacoesFragment) currentFragment).setFiltro(mesSelecionado, anoSelecionado);
+        } else if (currentFragment instanceof GraficosFragment) {
+            String mesNome = meses[spinnerMes.getSelectedItemPosition()];
+            ((GraficosFragment) currentFragment).setFiltro(mesSelecionado, anoSelecionado, mesNome);
         }
     }
 

app/src/main/java/com/example/lifegrid/menu/GraficosFragment.java

@@ -2,20 +2,57 @@ package com.example.lifegrid.menu;
 
 import android.os.Bundle;
 
+import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
+import android.widget.Toast;
 
 import com.example.lifegrid.R;
+import com.example.lifegrid.models.Transacao;
+import com.github.mikephil.charting.charts.BarChart;
+import com.github.mikephil.charting.charts.PieChart;
+import com.github.mikephil.charting.components.XAxis;
+import com.github.mikephil.charting.data.BarData;
+import com.github.mikephil.charting.data.BarDataSet;
+import com.github.mikephil.charting.data.BarEntry;
+import com.github.mikephil.charting.data.PieData;
+import com.github.mikephil.charting.data.PieDataSet;
+import com.github.mikephil.charting.data.PieEntry;
+import com.github.mikephil.charting.formatter.IndexAxisValueFormatter;
+import com.github.mikephil.charting.utils.ColorTemplate;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.auth.FirebaseUser;
+import com.google.firebase.database.DataSnapshot;
+import com.google.firebase.database.DatabaseError;
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
+import com.google.firebase.database.ValueEventListener;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 
 /**
  * GraficosFragment tem como único propósito compilar a informação da aplicação sob uma
- * componente puramente matemática exibida de forma ilustrativa. Tarta da visão de Dashboard de estatística.
+ * componente puramente matemática exibida de forma ilustrativa. Trata da visão de Dashboard de estatística.
  */
 public class GraficosFragment extends Fragment {
 
+    private PieChart pieChartMensal;
+    private BarChart barChartAnual;
+    private TextView tvTituloMensal;
+    private TextView tvTituloAnual;
+
+    private List<Transacao> allTransacoesList = new ArrayList<>();
+    private int currentMes = -1;
+    private String currentAno = "";
+    private String currentMesNome = "";
+
     public GraficosFragment() {
         // Construtor público vazio obrigatório
     }
@@ -25,13 +62,200 @@ public class GraficosFragment extends Fragment {
         super.onCreate(savedInstanceState);
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (getActivity() instanceof com.example.lifegrid.TelaInicialActivity) {
+            ((com.example.lifegrid.TelaInicialActivity) getActivity()).atualizarDadosHome();
+        }
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflaciona o layout para este fragmento
         View root = inflater.inflate(R.layout.fragment_graficos, container, false);
 
+        pieChartMensal = root.findViewById(R.id.pieChartMensal);
+        barChartAnual = root.findViewById(R.id.barChartAnual);
+        tvTituloMensal = root.findViewById(R.id.tvTituloMensal);
+        tvTituloAnual = root.findViewById(R.id.tvTituloAnual);
+
+        configurarGraficos();
+        carregarTransacoes();
 
         return root;
+    }
+
+    private void configurarGraficos() {
+        // Config PieChart
+        pieChartMensal.getDescription().setEnabled(false);
+        pieChartMensal.setUsePercentValues(true);
+        pieChartMensal.setEntryLabelColor(android.graphics.Color.BLACK);
+        pieChartMensal.setEntryLabelTextSize(12f);
+        pieChartMensal.setCenterText("Despesas");
+        pieChartMensal.setCenterTextSize(18f);
+
+        // Config BarChart
+        barChartAnual.getDescription().setEnabled(false);
+        barChartAnual.setDrawGridBackground(false);
+        barChartAnual.getAxisRight().setEnabled(false);
+        XAxis xAxis = barChartAnual.getXAxis();
+        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
+        xAxis.setGranularity(1f);
+        xAxis.setCenterAxisLabels(true);
+
+        String[] mesesLabel = new String[]{"Jan", "Fev", "Mar", "Abr", "Mai", "Jun", "Jul", "Ago", "Set", "Out", "Nov", "Dez"};
+        xAxis.setValueFormatter(new IndexAxisValueFormatter(mesesLabel));
+    }
+
+    private void carregarTransacoes() {
+        FirebaseUser currentUser = FirebaseAuth.getInstance().getCurrentUser();
+        if (currentUser == null) return;
+
+        String userId = currentUser.getUid();
+        DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference();
+
+        databaseReference.child("users").child(userId).child("transacoes").addValueEventListener(new ValueEventListener() {
+            @Override
+            public void onDataChange(@NonNull DataSnapshot snapshot) {
+                allTransacoesList.clear();
+                for (DataSnapshot ds : snapshot.getChildren()) {
+                    Transacao t = ds.getValue(Transacao.class);
+                    if (t != null) {
+                        t.setId(ds.getKey());
+                        allTransacoesList.add(t);
+                    }
+                }
+                atualizarGraficos();
+            }
+
+            @Override
+            public void onCancelled(@NonNull DatabaseError error) {
+                if (getContext() != null) {
+                    Toast.makeText(getContext(), "Erro ao carregar transações.", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+    }
+
+    public void setFiltro(int mesSelecionado, String anoSelecionado, String mesNome) {
+        this.currentMes = mesSelecionado;
+        this.currentAno = anoSelecionado;
+        this.currentMesNome = mesNome;
+        
+        if (tvTituloMensal != null) {
+            tvTituloMensal.setText("Resumo de " + mesNome + " " + anoSelecionado);
         }
-    }
+        if (tvTituloAnual != null) {
+            tvTituloAnual.setText("Balanço Anual - " + anoSelecionado);
+        }
+        
+        atualizarGraficos();
+    }
+
+    private void atualizarGraficos() {
+        if (currentMes == -1 || currentAno.isEmpty()) return;
+
+        atualizarPieChart();
+        atualizarBarChart();
+    }
+
+    private void atualizarPieChart() {
+        Map<String, Float> categoriasMap = new HashMap<>();
+
+        for (Transacao t : allTransacoesList) {
+            if (t.getData() != null && t.getTipo() != null && t.getTipo().equalsIgnoreCase("Despesa")) {
+                String[] parts = t.getData().split("/");
+                if (parts.length == 3) {
+                    try {
+                        int mesTransacao = Integer.parseInt(parts[1]);
+                        String anoTransacao = parts[2];
+                        if (mesTransacao == currentMes && anoTransacao.equals(currentAno)) {
+                            float valor = Float.parseFloat(t.getValor());
+                            String cat = t.getCategoria();
+                            categoriasMap.put(cat, categoriasMap.getOrDefault(cat, 0f) + valor);
+                        }
+                    } catch (NumberFormatException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+
+        List<PieEntry> entries = new ArrayList<>();
+        for (Map.Entry<String, Float> entry : categoriasMap.entrySet()) {
+            if (entry.getValue() > 0) {
+                entries.add(new PieEntry(entry.getValue(), entry.getKey()));
+            }
+        }
+
+        PieDataSet dataSet = new PieDataSet(entries, "");
+        dataSet.setColors(ColorTemplate.MATERIAL_COLORS);
+        dataSet.setSliceSpace(3f);
+        dataSet.setValueTextSize(14f);
+        dataSet.setValueTextColor(android.graphics.Color.WHITE);
+
+        PieData data = new PieData(dataSet);
+        pieChartMensal.setData(data);
+        pieChartMensal.invalidate(); // refresh
+    }
+
+    private void atualizarBarChart() {
+        float[] receitasPorMes = new float[12];
+        float[] despesasPorMes = new float[12];
+
+        for (Transacao t : allTransacoesList) {
+            if (t.getData() != null) {
+                String[] parts = t.getData().split("/");
+                if (parts.length == 3) {
+                    try {
+                        int mesTransacao = Integer.parseInt(parts[1]) - 1; // 0 a 11
+                        String anoTransacao = parts[2];
+                        if (anoTransacao.equals(currentAno) && mesTransacao >= 0 && mesTransacao < 12) {
+                            float valor = Float.parseFloat(t.getValor());
+                            if (t.getTipo() != null && t.getTipo().equalsIgnoreCase("Receita")) {
+                                receitasPorMes[mesTransacao] += valor;
+                            } else {
+                                despesasPorMes[mesTransacao] += valor;
+                            }
+                        }
+                    } catch (NumberFormatException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+
+        List<BarEntry> entriesReceitas = new ArrayList<>();
+        List<BarEntry> entriesDespesas = new ArrayList<>();
+
+        for (int i = 0; i < 12; i++) {
+            entriesReceitas.add(new BarEntry(i, receitasPorMes[i]));
+            entriesDespesas.add(new BarEntry(i, despesasPorMes[i]));
+        }
+
+        BarDataSet setReceitas = new BarDataSet(entriesReceitas, "Receitas");
+        setReceitas.setColor(android.graphics.Color.parseColor("#2ECC71"));
+        setReceitas.setValueTextSize(10f);
+
+        BarDataSet setDespesas = new BarDataSet(entriesDespesas, "Despesas");
+        setDespesas.setColor(android.graphics.Color.parseColor("#E74C3C"));
+        setDespesas.setValueTextSize(10f);
+
+        BarData data = new BarData(setReceitas, setDespesas);
+        
+        // agrupar barras
+        float groupSpace = 0.4f;
+        float barSpace = 0.05f;
+        float barWidth = 0.25f;
+        
+        data.setBarWidth(barWidth);
+        barChartAnual.setData(data);
+        barChartAnual.groupBars(0f, groupSpace, barSpace);
+        barChartAnual.getXAxis().setAxisMinimum(0f);
+        barChartAnual.getXAxis().setAxisMaximum(0f + barChartAnual.getBarData().getGroupWidth(groupSpace, barSpace) * 12);
+        
+        barChartAnual.invalidate(); // refresh
+    }
+}

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

@@ -1,14 +1,81 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:fillViewport="true"
     tools:context=".menu.GraficosFragment">
 
-    <!-- TODO: Update blank fragment layout -->
+    <LinearLayout
-    <TextView
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="wrap_content"
-        android:text="@string/hello_blank_fragment" />
+        android:orientation="vertical"
+        android:paddingBottom="100dp"
+        android:paddingTop="16dp">
 
-</FrameLayout>
+        <androidx.cardview.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16dp"
+            android:layout_marginBottom="16dp"
+            app:cardCornerRadius="16dp"
+            app:cardElevation="0dp"
+            android:backgroundTint="#FFFFFF">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:padding="16dp">
+
+                <TextView
+                    android:id="@+id/tvTituloMensal"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="Resumo Mensal"
+                    android:textColor="#1A202C"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <com.github.mikephil.charting.charts.PieChart
+                    android:id="@+id/pieChartMensal"
+                    android:layout_width="match_parent"
+                    android:layout_height="300dp"
+                    android:layout_marginTop="16dp" />
+            </LinearLayout>
+        </androidx.cardview.widget.CardView>
+
+        <androidx.cardview.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16dp"
+            android:layout_marginBottom="16dp"
+            app:cardCornerRadius="16dp"
+            app:cardElevation="0dp"
+            android:backgroundTint="#FFFFFF">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:padding="16dp">
+
+                <TextView
+                    android:id="@+id/tvTituloAnual"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="Balanço Anual"
+                    android:textColor="#1A202C"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <com.github.mikephil.charting.charts.BarChart
+                    android:id="@+id/barChartAnual"
+                    android:layout_width="match_parent"
+                    android:layout_height="300dp"
+                    android:layout_marginTop="16dp" />
+            </LinearLayout>
+        </androidx.cardview.widget.CardView>
+    </LinearLayout>
+</ScrollView>

settings.gradle.kts

@@ -19,6 +19,7 @@ dependencyResolutionManagement {
     repositories {
         google()
         mavenCentral()
+        maven { url = uri("https://jitpack.io") }
     }
 }