(╯°□°)╯︵ ┻━┻

Assignments/CrimeActivity/.idea/deploymentTargetDropDown.xml

@@ -2,6 +2,9 @@
 <project version="4">
   <component name="deploymentTargetDropDown">
     <value>
+      <entry key="CrimeListActivity">
+        <State />
+      </entry>
       <entry key="app">
         <State />
       </entry>

Assignments/CrimeActivity/app/src/main/AndroidManifest.xml

@@ -13,7 +13,7 @@
         android:theme="@style/Theme.CrimeActivity"
         tools:targetApi="31">
         <activity
-            android:name=".CrimeActivity"
+            android:name=".CrimeListActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

Assignments/CrimeActivity/app/src/main/java/com/calebfontenot/crimeactivity/CrimeActivity.java

@@ -1,26 +1,10 @@
 package com.calebfontenot.crimeactivity;
 
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
-
-import android.os.Bundle;
-
-public class CrimeActivity extends AppCompatActivity {
 
+public class CrimeActivity extends SingleFragmentActivity{
     @Override
-    protected void onCreate(Bundle savedInstanceState) {
+    protected Fragment createFragment() {
-        super.onCreate(savedInstanceState);
+        return new CrimeFragment();
-        setContentView(R.layout.activity_main);
-
-        FragmentManager fm = getSupportFragmentManager();
-        Fragment fragment = fm.findFragmentById(R.id.fragment_container);
-    
-        if (fragment == null) {
-            fragment = new CrimeFragment();
-            fm.beginTransaction()
-                    .add(R.id.fragment_container,
-                            fragment).commit();
-        }
     }
 }

Assignments/CrimeActivity/app/src/main/java/com/calebfontenot/crimeactivity/CrimeLab.java

@@ -0,0 +1,40 @@
+package com.calebfontenot.crimeactivity;
+
+import android.content.Context;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class CrimeLab {
+    private static CrimeLab sCrimeLab;
+    private List<Crime> mCrimes;
+    public static CrimeLab get(Context context) {
+        if (sCrimeLab == null) {
+            sCrimeLab = new CrimeLab(context);
+        }
+        return sCrimeLab;
+    }
+    private CrimeLab(Context context) {
+        mCrimes = new ArrayList<>();
+        for (int i = 0; i < 100; ++i) {
+            Crime crime = new Crime();
+            crime.setmTitle("Crime #" + i);
+            crime.setmSolved(i % 2 == 0);
+            mCrimes.add(crime);
+        }
+    }
+
+    public List<Crime> getCrimes() {
+        return mCrimes;
+    }
+
+    public Crime getCrime(UUID id) {
+        for (Crime crime: mCrimes) {
+            if (crime.getmId().equals(id)) {
+                return crime;
+            }
+        }
+        return null;
+    }
+}

Assignments/CrimeActivity/app/src/main/java/com/calebfontenot/crimeactivity/CrimeListActivity.java

@@ -0,0 +1,14 @@
+package com.calebfontenot.crimeactivity;
+
+import androidx.fragment.app.Fragment;
+
+public class CrimeListActivity extends SingleFragmentActivity {
+    public CrimeListActivity() {
+        createFragment();
+    }
+
+    @Override
+    protected Fragment createFragment() {
+        return new CrimeListFragment();
+    }
+}

Assignments/CrimeActivity/app/src/main/java/com/calebfontenot/crimeactivity/CrimeListFragment.java

@@ -0,0 +1,61 @@
+package com.calebfontenot.crimeactivity;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+public class CrimeListFragment extends Fragment {
+    private RecyclerView mCrimeRecyclerView;
+    private CrimeAdapter mAdapter;
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_crime_list, container, false);
+        mCrimeRecyclerView = (RecyclerView) view.findViewById(R.id.crime_recycler_view);
+        mCrimeRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+        updateUI();
+        return view;
+    }
+    private void updateUI() {
+        CrimeLab crimeLab = CrimeLab.get(getActivity());
+        List<Crime> crimes = crimeLab.getCrimes();
+        mAdapter = new CrimeAdapter(crimes);
+        mCrimeRecyclerView.setAdapter(mAdapter);
+    }
+    private static class CrimeHolder extends RecyclerView.ViewHolder {
+        public CrimeHolder(LayoutInflater inflater, ViewGroup parent) {
+            super(inflater.inflate(R.layout.list_item_crime, parent, false));
+        }
+    }
+    private class CrimeAdapter extends RecyclerView.Adapter<CrimeHolder> {
+    private List<Crime> mCrimes;
+    public CrimeAdapter(List<Crime> crimes) {
+        mCrimes = crimes;
+    }
+        @NonNull
+        @Override
+        public CrimeHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+            LayoutInflater layoutInflater = LayoutInflater.from(getActivity());
+            return new CrimeHolder(layoutInflater, parent);
+        }
+
+        @Override
+        public void onBindViewHolder(@NonNull CrimeHolder holder, int position) {
+
+        }
+
+        @Override
+        public int getItemCount() {
+            return mCrimes.size();
+        }
+    }
+}

Assignments/CrimeActivity/app/src/main/java/com/calebfontenot/crimeactivity/SingleFragmentActivity.java

@@ -0,0 +1,26 @@
+package com.calebfontenot.crimeactivity;
+
+import android.os.Bundle;
+import android.os.PersistableBundle;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+
+public abstract class SingleFragmentActivity extends AppCompatActivity {
+    protected abstract Fragment createFragment();
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_fragment);
+
+        FragmentManager fm = getSupportFragmentManager();
+        Fragment fragment = fm.findFragmentById(R.id.fragment_container);
+        if (fragment == null) {
+            fragment = createFragment();
+            fm.beginTransaction().add(R.id.fragment_container, fragment).commit();
+        }
+    }
+}

Assignments/CrimeActivity/app/src/main/res/layout/fragment_crime_list.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.RecyclerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/crime_recycler_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"/>

Assignments/CrimeActivity/app/src/main/res/layout/list_item_crime.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="8dp">
+    <TextView
+        android:id="@+id/crime_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/crime_title"/>
+    <TextView
+        android:id="@+id/crime_date"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+</LinearLayout>

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

@@ -4,4 +4,5 @@
     <string name="crime_title_hint">Enter a title for the crime.</string>
     <string name="crime_details_label">Details</string>
     <string name="crime_solved_label">Solved</string>
+    <string name="crime_title">Crime Title</string>
 </resources>