add app history, icon options...

app/build.gradle

@@ -4,7 +4,7 @@ android {
     compileSdkVersion 28
     defaultConfig {
         applicationId "com.gottlicher.notifrepeater"
-        minSdkVersion 28
+        minSdkVersion 27
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
@@ -26,4 +26,6 @@ dependencies {
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
     implementation "com.android.support:support-compat:28.0.0"
+    implementation 'com.android.support:recyclerview-v7:28.0.0'
+    implementation 'com.google.code.gson:gson:2.8.5'
 }

app/src/main/java/com/gottlicher/notifrepeater/AppHistoryHelper.java

@@ -0,0 +1,136 @@
+package com.gottlicher.notifrepeater;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.preference.PreferenceManager;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.lang.reflect.Type;
+import java.util.AbstractMap;
+import java.util.ArrayList;
+import java.util.Iterator;
+
+public class AppHistoryHelper {
+    private final static String APPS_PREF_NAME = "APPS_PREF_NAME";
+
+    public static class AppInfo {
+        public String packageName;
+        public int imageRes;
+        public int ct;
+
+        AppInfo(String packageName, int imageRes, int ct) {
+            this.packageName = packageName;
+            this.imageRes = imageRes;
+            this.ct = ct;
+        }
+
+        public String getAppLauncherName (Context context) {
+            return getAppNameFromPackage(context, packageName);
+        }
+    }
+
+
+    private static Gson gson = new Gson();
+    public static void addNotificationOccurence (Context context, String appName)
+    {
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String appsJson = sharedPrefs.getString(APPS_PREF_NAME, "");
+
+        Type collType = new TypeToken<ArrayList<AppInfo>>(){}.getType();
+        ArrayList<AppInfo> appList = gson.fromJson(appsJson, collType);
+
+        if (appList == null) {
+            appList = new ArrayList<>();
+        }
+
+        boolean found = false;
+        for(AppInfo ai : appList) {
+            if(ai.packageName.equals(appName)) {
+                ai.ct++;
+                found = true;
+            }
+        }
+
+        if(!found) {
+            appList.add(new AppInfo(appName, R.drawable.ic_notifications_black_24dp, 1));
+        }
+
+        SharedPreferences.Editor editor = sharedPrefs.edit();
+        editor.putString(APPS_PREF_NAME, gson.toJson(appList));
+        editor.apply();
+    }
+
+    public static ArrayList<AppInfo> getOccurences (Context context)
+    {
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String appsJson = sharedPrefs.getString(APPS_PREF_NAME, "");
+
+        Type collType = new TypeToken<ArrayList<AppInfo>>(){}.getType();
+        ArrayList<AppInfo> appList = gson.fromJson(appsJson, collType);
+        if (appList == null) {
+            appList = new ArrayList<>();
+        }
+        return appList;
+    }
+
+    public static int getIconFor (Context context, String appName)
+    {
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String appsJson = sharedPrefs.getString(APPS_PREF_NAME, "");
+
+        Type collType = new TypeToken<ArrayList<AppInfo>>(){}.getType();
+        ArrayList<AppInfo> appList = gson.fromJson(appsJson, collType);
+
+        for(AppInfo ai : appList) {
+            if(ai.packageName.equals(appName)) {
+                return  ai.imageRes;
+            }
+        }
+        return  R.drawable.ic_notifications_black_24dp;
+    }
+
+    public static void updateIcon (Context context, String packageName, int newIcon)
+    {
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String appsJson = sharedPrefs.getString(APPS_PREF_NAME, "");
+
+        Type collType = new TypeToken<ArrayList<AppInfo>>(){}.getType();
+        ArrayList<AppInfo> appList = gson.fromJson(appsJson, collType);
+
+        if (appList == null) {
+            appList = new ArrayList<>();
+        }
+
+        boolean found = false;
+        for(AppInfo ai : appList) {
+            if(ai.packageName.equals(packageName)) {
+                ai.imageRes = newIcon;
+            }
+        }
+
+        SharedPreferences.Editor editor = sharedPrefs.edit();
+        editor.putString(APPS_PREF_NAME, gson.toJson(appList));
+        editor.apply();
+    }
+
+
+    public static String getAppNameFromPackage (Context context, String pkg)
+    {
+        final PackageManager pm = context.getPackageManager();
+        ApplicationInfo ai;
+        try {
+            ai = pm.getApplicationInfo(pkg, 0);
+        } catch (final PackageManager.NameNotFoundException e) {
+            ai = null;
+        }
+        return (String) (ai != null ? pm.getApplicationLabel(ai) : "(unknown)");
+    }
+}