I tried to follow some tutorials on how to set up a shared elements transition. Though when i try to set up a background the shared element kind of glitches the wrong way and then moves like it should.
Heres a link to a video of my problem: https://drive.google.com/file/d/14lTFGIpqnMwM2MEbLxwBe_gkI0GuyuMc/view?usp=sharing
When no background is set: https://drive.google.com/open?id=15Hpkj7y8nLLTXa5RF5FV00jlTTWMofjF
When i don't set a background in my xml layout, the animation works properly. Does anyone know, why this happens?
Activity 1 XML
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:id="@+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="@font/nexa"
android:gravity="center"
android:padding="10dp"
android:text="Test"
android:textColor="@color/colorAccent"
android:textSize="30sp"
android:transitionName="transition"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Activity 2 XML
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary">
<TextView
android:id="@+id/text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="10dp"
android:text="Test"
android:fontFamily="@font/nexa"
android:textColor="@color/colorAccent"
android:textSize="30sp"
android:transitionName="transition"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.05" />
</androidx.constraintlayout.widget.ConstraintLayout>
Activity 1 Java
package com.stonks.sharedanimtest;
import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.core.app.ActivityCompat;
import android.app.ActivityOptions;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().setEnterTransition(null);
textView = (TextView) findViewById(R.id.text1);
textView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, MainActivity2.class);
ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(MainActivity.this, textView, "transition");
startActivity(intent, options.toBundle());
}
});
}
}
Activity 2 Java
package com.stonks.sharedanimtest;
import android.app.Activity;
import android.app.ActivityOptions;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.WindowManager;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity2 extends AppCompatActivity {
private TextView textView;
@Override
public void onBackPressed() {
textView = (TextView) findViewById(R.id.text2);
Intent intent = new Intent(MainActivity2.this, MainActivity.class);
ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(MainActivity2.this, textView, "transition");
startActivity(intent, options.toBundle());
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().setEnterTransition(null);
}
}
Colors XML
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#161618</color>
<color name="colorPrimaryLight">#202024</color>
<color name="colorAccent">#ffffff</color>
</resources>
Manifest XML
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.stonks.sharedanimtest">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity2"
android:screenOrientation="portrait" />
<activity android:name=".MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
