Use Java 8 Date/Time API instead of java.util.Date.

Author: Isira-Seneviratne

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -1245,7 +1245,7 @@ public void handleResult(@NonNull final StreamInfo info) {
 
         if (info.getUploadDate() != null) {
             videoUploadDateView.setText(Localization
-                    .localizeUploadDate(activity, info.getUploadDate().date().getTime()));
+                    .localizeUploadDate(activity, info.getUploadDate().date()));
             videoUploadDateView.setVisibility(View.VISIBLE);
         } else {
             videoUploadDateView.setText(null);

app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionFragment.kt

@@ -30,8 +30,8 @@ import com.xwray.groupie.kotlinandroidextensions.GroupieViewHolder
 import icepick.State
 import io.reactivex.disposables.CompositeDisposable
 import java.io.File
-import java.text.SimpleDateFormat
-import java.util.Date
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
 import java.util.Locale
 import kotlin.math.floor
 import kotlin.math.max
@@ -189,7 +189,8 @@ class SubscriptionFragment : BaseStateFragment<SubscriptionState>() {
     }
 
     private fun onExportSelected() {
-        val date = SimpleDateFormat("yyyyMMddHHmm", Locale.ENGLISH).format(Date())
+        val date = DateTimeFormatter.ofPattern("yyyyMMddHHmm", Locale.ENGLISH)
+                .format(LocalDateTime.now())
         val exportName = "newpipe_subscriptions_$date.json"
         val exportFile = File(Environment.getExternalStorageDirectory(), exportName)
 

app/src/main/java/org/schabi/newpipe/report/ErrorActivity.java

@@ -41,12 +41,12 @@
 
 import java.io.PrintWriter;
 import java.io.StringWriter;
-import java.text.SimpleDateFormat;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Arrays;
-import java.util.Date;
 import java.util.List;
 import java.util.Locale;
-import java.util.TimeZone;
 import java.util.Vector;
 
 import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
@@ -405,9 +405,8 @@ public void onBackPressed() {
     }
 
     public String getCurrentTimeStamp() {
-        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm");
-        df.setTimeZone(TimeZone.getTimeZone("GMT"));
-        return df.format(new Date());
+        return DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm").withZone(ZoneId.of("GMT"))
+                .format(ZonedDateTime.now());
     }
 
     public static class ErrorInfo implements Parcelable {

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsFragment.java

@@ -37,8 +37,8 @@
 import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Locale;
 import java.util.Map;
 import java.util.zip.ZipFile;
@@ -177,8 +177,8 @@ public void onActivityResult(final int requestCode, final int resultCode,
                 && resultCode == Activity.RESULT_OK && data.getData() != null) {
             String path = Utils.getFileForUri(data.getData()).getAbsolutePath();
             if (requestCode == REQUEST_EXPORT_PATH) {
-                SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US);
-                exportDatabase(path + "/NewPipeData-" + sdf.format(new Date()) + ".zip");
+                DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss", Locale.US);
+                exportDatabase(path + "/NewPipeData-" + dtf.format(LocalDateTime.now()) + ".zip");
             } else {
                 AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
                 builder.setMessage(R.string.override_current_data)

app/src/main/java/org/schabi/newpipe/util/Localization.java

@@ -21,11 +21,14 @@
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
-import java.text.DateFormat;
 import java.text.NumberFormat;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.FormatStyle;
 import java.util.Arrays;
 import java.util.Calendar;
-import java.util.Date;
 import java.util.List;
 import java.util.Locale;
 
@@ -137,13 +140,16 @@ public static String localizeNumber(final Context context, final double number)
         return nf.format(number);
     }
 
-    public static String formatDate(final Date date, final Context context) {
-        return DateFormat.getDateInstance(DateFormat.MEDIUM, getAppLocale(context)).format(date);
+    public static String formatDate(final LocalDate date) {
+        return DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).format(date);
     }
 
     @SuppressLint("StringFormatInvalid")
-    public static String localizeUploadDate(final Context context, final Date date) {
-        return context.getString(R.string.upload_date_text, formatDate(date, context));
+    public static String localizeUploadDate(final Context context, final Calendar calendar) {
+        final ZonedDateTime zonedDateTime = ZonedDateTime.ofInstant(calendar.toInstant(),
+                ZoneId.systemDefault());
+        return context.getString(R.string.upload_date_text, formatDate(zonedDateTime
+                .toLocalDate()));
     }
 
     public static String localizeViewCount(final Context context, final long viewCount) {