add setting for mini-player bottom spacing

app/src/main/java/io/lbry/browser/MainActivity.java

@@ -76,6 +76,7 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.appcompat.app.AppCompatDelegate;
+import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.core.app.ActivityCompat;
 import androidx.core.app.NotificationCompat;
 import androidx.core.app.NotificationManagerCompat;
@@ -207,7 +208,7 @@ import lombok.Setter;
 import lombok.SneakyThrows;
 import okhttp3.OkHttpClient;
 
-public class MainActivity extends AppCompatActivity implements SdkStatusListener {
+public class MainActivity extends AppCompatActivity implements SdkStatusListener, SharedPreferences.OnSharedPreferenceChangeListener {
     private static final String CHANNEL_ID_PLAYBACK = "io.lbry.browser.LBRY_PLAYBACK_CHANNEL";
     private static final int PLAYBACK_NOTIFICATION_ID = 3;
     private static final String SPECIAL_URL_PREFIX = "lbry://?";
@@ -313,6 +314,7 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
     public static final String PREFERENCE_KEY_DARK_MODE = "io.lbry.browser.preference.userinterface.DarkMode";
     public static final String PREFERENCE_KEY_SHOW_MATURE_CONTENT = "io.lbry.browser.preference.userinterface.ShowMatureContent";
     public static final String PREFERENCE_KEY_SHOW_URL_SUGGESTIONS = "io.lbry.browser.preference.userinterface.UrlSuggestions";
+    public static final String PREFERENCE_KEY_MINI_PLAYER_BOTTOM_MARGIN = "io.lbry.browser.preference.userinterface.MiniPlayerBottomMargin";
     public static final String PREFERENCE_KEY_NOTIFICATION_COMMENTS = "io.lbry.browser.preference.notifications.Comments";
     public static final String PREFERENCE_KEY_NOTIFICATION_SUBSCRIPTIONS = "io.lbry.browser.preference.notifications.Subscriptions";
     public static final String PREFERENCE_KEY_NOTIFICATION_REWARDS = "io.lbry.browser.preference.notifications.Rewards";
@@ -393,6 +395,7 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
     private static final int STARTUP_STAGE_NEW_INSTALL_DONE = 5;
     private static final int STARTUP_STAGE_SUBSCRIPTIONS_LOADED = 6;
     private static final int STARTUP_STAGE_SUBSCRIPTIONS_RESOLVED = 7;
+    private static final int DEFAULT_MINI_PLAYER_MARGIN = 4;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -436,6 +439,8 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
+        updateMiniPlayerMargins();
+
         // setup the billing client in main activity (to handle cases where the verification purchase flow may have been interrupted)
         billingClient = BillingClient.newBuilder(this)
                 .setListener(new PurchasesUpdatedListener() {
@@ -612,6 +617,17 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
         });
     }
 
+    private void updateMiniPlayerMargins() {
+        // mini-player bottom margin setting
+        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
+        int miniPlayerBottomMargin = Helper.parseInt(
+                sp.getString(PREFERENCE_KEY_MINI_PLAYER_BOTTOM_MARGIN, String.valueOf(DEFAULT_MINI_PLAYER_MARGIN)), DEFAULT_MINI_PLAYER_MARGIN);
+        ConstraintLayout.LayoutParams lp = (ConstraintLayout.LayoutParams) findViewById(R.id.global_now_playing_card).getLayoutParams();
+        int scaledMiniPlayerMargin = getScaledValue(DEFAULT_MINI_PLAYER_MARGIN);
+        int scaledMiniPlayerBottomMargin = getScaledValue(miniPlayerBottomMargin);
+        lp.setMargins(scaledMiniPlayerMargin, 0, scaledMiniPlayerMargin, scaledMiniPlayerBottomMargin);
+    }
+
     public boolean isDarkMode() {
         SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
         return sp.getBoolean(PREFERENCE_KEY_DARK_MODE, false);
@@ -1143,8 +1159,11 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
     @Override
     protected void onResume() {
         super.onResume();
+        PreferenceManager.getDefaultSharedPreferences(this).registerOnSharedPreferenceChangeListener(this);
+
         checkPurchases();
         checkWebSocketClient();
+        updateMiniPlayerMargins();
         enteringPIPMode = false;
 
         applyNavbarSigninPadding();
@@ -1221,6 +1240,7 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
 
     @Override
     protected void onPause() {
+        PreferenceManager.getDefaultSharedPreferences(this).unregisterOnSharedPreferenceChangeListener(this);
         if (!enteringPIPMode && !inPictureInPictureMode && appPlayer != null && !isBackgroundPlaybackEnabled()) {
             appPlayer.setPlayWhenReady(false);
         }
@@ -1833,6 +1853,13 @@ public class MainActivity extends AppCompatActivity implements SdkStatusListener
         }
     }
 
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+        if (PREFERENCE_KEY_MINI_PLAYER_BOTTOM_MARGIN.equalsIgnoreCase(key)) {
+            updateMiniPlayerMargins();
+        }
+    }
+
     private class PlayerNotificationDescriptionAdapter implements PlayerNotificationManager.MediaDescriptionAdapter {
 
         @Override

app/src/main/java/io/lbry/browser/ui/other/SettingsFragment.java

@@ -4,9 +4,13 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.text.InputType;
+import android.widget.EditText;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatDelegate;
+import androidx.preference.EditTextPreference;
 import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.PreferenceManager;
 
@@ -23,6 +27,15 @@ public class SettingsFragment extends PreferenceFragmentCompat implements Shared
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         setPreferencesFromResource(R.xml.settings, rootKey);
+        PreferenceManager manager = getPreferenceManager();
+
+        EditTextPreference miniPlayerBottomMarginPreference = manager.findPreference(MainActivity.PREFERENCE_KEY_MINI_PLAYER_BOTTOM_MARGIN);
+        miniPlayerBottomMarginPreference.setOnBindEditTextListener(new EditTextPreference.OnBindEditTextListener() {
+            @Override
+            public void onBindEditText(@NonNull EditText editText) {
+                editText.setInputType(InputType.TYPE_CLASS_NUMBER);
+            }
+        });
     }
 
     @Override

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

@@ -242,6 +242,7 @@
     <string name="notifications">Notifications</string>
     <string name="subscriptions">Subscriptions</string>
     <string name="content_interests">Content Interests</string>
+    <string name="mini_player_bottom_spacing">Mini-player bottom spacing</string>
 
     <string name="keep_sdk_in_background">Keep the LBRY service running in the background for improved wallet and network performance</string>
     <string name="participate_in_data_network">Participate in the data network (requires app and background service restart)</string>

app/src/main/res/xml/settings.xml

@@ -23,6 +23,12 @@
             app:title="@string/show_url_suggestions"
             app:defaultValue="true"
             app:iconSpaceReserved="false" />
+        <EditTextPreference
+            android:inputType="numberDecimal|numberSigned"
+            app:key="io.lbry.browser.preference.userinterface.MiniPlayerBottomMargin"
+            app:title="@string/mini_player_bottom_spacing"
+            app:defaultValue="4"
+            app:iconSpaceReserved="false" />
     </PreferenceCategory>
 
     <PreferenceCategory