Do not jump bottom sheet when playing (#6342)

Whenever some view calls requestLayout(), the bottom view jumps.
This happens during slide when setting the player from GONE to VISIBLE.
Also, it happens every time the position changes because the TextView
has a dynamic width. We are not actually interested in the dynamic
width and can simply keep the initial width. This avoids requestLayout()
calls every time the position is updated.

3 files changed, 32 insertions, 3 deletions

diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/AudioPlayerFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/AudioPlayerFragment.java
index e93db2d2a..51cb28eb8 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/AudioPlayerFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/AudioPlayerFragment.java
@@ -528,7 +528,7 @@ public class AudioPlayerFragment extends Fragment implements
         float playerFadeProgress = Math.max(0.0f, Math.min(0.2f, slideOffset - 0.2f)) / 0.2f;
         View player = getView().findViewById(R.id.playerFragment);
         player.setAlpha(1 - playerFadeProgress);
-        player.setVisibility(playerFadeProgress > 0.99f ? View.GONE : View.VISIBLE);
+        player.setVisibility(playerFadeProgress > 0.99f ? View.INVISIBLE : View.VISIBLE);
         float toolbarFadeProgress = Math.max(0.0f, Math.min(0.2f, slideOffset - 0.6f)) / 0.2f;
         toolbar.setAlpha(toolbarFadeProgress);
         toolbar.setVisibility(toolbarFadeProgress < 0.01f ? View.INVISIBLE : View.VISIBLE);
diff --git a/app/src/main/java/de/danoeh/antennapod/view/NoRelayoutTextView.java b/app/src/main/java/de/danoeh/antennapod/view/NoRelayoutTextView.java
new file mode 100644
index 000000000..3f921b445
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/view/NoRelayoutTextView.java
@@ -0,0 +1,28 @@
+package de.danoeh.antennapod.view;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.util.AttributeSet;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatTextView;
+
+public class NoRelayoutTextView extends AppCompatTextView {
+    public NoRelayoutTextView(@NonNull Context context) {
+        super(context);
+    }
+
+    public NoRelayoutTextView(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public NoRelayoutTextView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @SuppressLint("MissingSuperCall")
+    @Override
+    public void requestLayout() {
+        // Deliberate no-op
+    }
+}
diff --git a/app/src/main/res/layout/audioplayer_fragment.xml b/app/src/main/res/layout/audioplayer_fragment.xml
index 496875a5f..87225e783 100644
--- a/app/src/main/res/layout/audioplayer_fragment.xml
+++ b/app/src/main/res/layout/audioplayer_fragment.xml
@@ -104,7 +104,7 @@
                 android:paddingLeft="8dp"
                 android:paddingRight="8dp">
 
-                <TextView
+                <de.danoeh.antennapod.view.NoRelayoutTextView
                     android:id="@+id/txtvPosition"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
@@ -116,7 +116,7 @@
                     android:textColor="?android:attr/textColorSecondary"
                     android:textSize="@dimen/text_size_micro" />
 
-                <TextView
+                <de.danoeh.antennapod.view.NoRelayoutTextView
                     android:id="@+id/txtvLength"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
@@ -124,6 +124,7 @@
                     android:layout_alignParentRight="true"
                     android:layout_marginEnd="16dp"
                     android:layout_marginRight="16dp"
+                    android:textAlignment="textEnd"
                     android:background="?android:attr/selectableItemBackground"
                     android:text="@string/position_default_label"
                     android:textColor="?android:attr/textColorSecondary"