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https://github.com/MatomoCamp/matomocamp-companion-android.git
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Performance fix: ensure the ViewPager is only made visible when the adapter is set to avoid it to layout pages too early
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3 changed files with 8 additions and 8 deletions
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@ -3,9 +3,7 @@ package be.digitalia.fosdem.activities;
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import android.database.Cursor;
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import android.os.Bundle;
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import android.provider.BaseColumns;
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import com.viewpagerindicator.UnderlinePageIndicator;
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import android.view.View;
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import androidx.annotation.NonNull;
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import androidx.appcompat.app.ActionBar;
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import androidx.appcompat.app.AppCompatActivity;
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@ -27,6 +25,7 @@ import be.digitalia.fosdem.utils.NfcUtils;
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import be.digitalia.fosdem.utils.NfcUtils.CreateNfcAppDataCallback;
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import be.digitalia.fosdem.utils.ThemeUtils;
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import be.digitalia.fosdem.widgets.ContentLoadingProgressBar;
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import com.viewpagerindicator.UnderlinePageIndicator;
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/**
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* Event view of the track schedule; allows to slide between events of the same track using a ViewPager.
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@ -67,8 +66,6 @@ public class TrackScheduleEventActivity extends AppCompatActivity implements Loa
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if (savedInstanceState == null) {
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initialPosition = extras.getInt(EXTRA_POSITION, -1);
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pager.setAdapter(adapter);
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pageIndicator.setViewPager(pager);
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}
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ActionBar bar = getSupportActionBar();
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@ -121,9 +118,10 @@ public class TrackScheduleEventActivity extends AppCompatActivity implements Loa
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setCustomProgressVisibility(false);
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if (data != null) {
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pager.setVisibility(View.VISIBLE);
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adapter.setCursor(data);
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// Delay setting the adapter when the instance state is restored
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// Delay setting the adapter
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// to ensure the current position is restored properly
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if (pager.getAdapter() == null) {
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pager.setAdapter(adapter);
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@ -8,7 +8,8 @@
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android:id="@+id/content"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical">
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android:orientation="vertical"
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android:visibility="gone">
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<com.google.android.material.tabs.TabLayout
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android:id="@+id/tabs"
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@ -14,7 +14,8 @@
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<androidx.viewpager.widget.ViewPager
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android:id="@+id/pager"
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android:layout_width="match_parent"
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android:layout_height="match_parent"/>
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android:layout_height="match_parent"
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android:visibility="gone"/>
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<com.viewpagerindicator.UnderlinePageIndicator
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android:id="@+id/indicator"
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