package de.pixart.messenger.utils; import android.content.Context; import android.content.SharedPreferences; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.os.Build; import android.preference.Preference; import android.preference.PreferenceCategory; import android.preference.PreferenceManager; import android.preference.PreferenceScreen; import android.support.annotation.BoolRes; import android.support.v4.content.ContextCompat; import java.util.Arrays; import java.util.Collections; import java.util.List; import de.pixart.messenger.R; import de.pixart.messenger.ui.SettingsActivity; import de.pixart.messenger.ui.SettingsFragment; public class Compatibility { private static final List UNUSED_SETTINGS_POST_TWENTYSIX = Arrays.asList( SettingsActivity.SHOW_FOREGROUND_SERVICE, "led", "notification_ringtone", "notification_headsup", "vibrate_on_notification"); private static final List UNUSED_SETTINGS_PRE_TWENTYSIX = Collections.singletonList("more_notification_settings"); public static boolean hasStoragePermission(Context context) { return Build.VERSION.SDK_INT < Build.VERSION_CODES.M || ContextCompat.checkSelfPermission(context, android.Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED; } public static boolean runsTwentySix() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.O; } public static boolean twentyTwo() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1; } private static boolean getBooleanPreference(Context context, String name, @BoolRes int res) { return getPreferences(context).getBoolean(name, context.getResources().getBoolean(res)); } private static SharedPreferences getPreferences(final Context context) { return PreferenceManager.getDefaultSharedPreferences(context); } private static boolean targetsTwentySix(Context context) { try { final PackageManager packageManager = context.getPackageManager(); final ApplicationInfo applicationInfo = packageManager.getApplicationInfo(context.getPackageName(), 0); return applicationInfo == null || applicationInfo.targetSdkVersion >= 26; } catch (PackageManager.NameNotFoundException e) { return true; //when in doubt… } } public static boolean runsAndTargetsTwentySix(Context context) { return runsTwentySix() && targetsTwentySix(context); } public static boolean keepForegroundService(Context context) { return runsTwentySix() || getBooleanPreference(context, SettingsActivity.SHOW_FOREGROUND_SERVICE, R.bool.show_foreground_service); } public static void removeUnusedPreferences(SettingsFragment settingsFragment) { List screens = Arrays.asList( (PreferenceScreen) settingsFragment.findPreference("notifications")); List categories = Arrays.asList( (PreferenceCategory) settingsFragment.findPreference("general")); for (String key : (runsTwentySix() ? UNUSED_SETTINGS_POST_TWENTYSIX : UNUSED_SETTINGS_PRE_TWENTYSIX)) { Preference preference = settingsFragment.findPreference(key); if (preference != null) { for (PreferenceScreen screen : screens) { if (screen != null) { screen.removePreference(preference); } } for (PreferenceCategory category : categories) { if (category != null) { category.removePreference(preference); } } } } if (Compatibility.runsTwentySix()) { if (targetsTwentySix(settingsFragment.getContext())) { Preference preference = settingsFragment.findPreference(SettingsActivity.SHOW_FOREGROUND_SERVICE); if (preference != null) { for (PreferenceCategory category : categories) { if (category != null) { category.removePreference(preference); } } } } } } }