After updating the android studio to version 3.1.2 & gradle to version 4.4, I've faced weird problem to show snackbar in an activtiy. here is the code:
@BindView(R.id.layout_coordinator)
CoordinatorLayout coordinatorLayout;
Snackbar.make(coordinatorLayout,"hello", Snackbar.LENGTH_LONG).show();
my XMl layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/layout_coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Activities.LoginActivity">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="70dp"
android:paddingRight="70dp">
<EditText
android:id="@+id/edtMobileNumber"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_RegisterTitle"
android:layout_marginTop="19dp"
android:gravity="center"
android:hint="@string/enterYourMobilePhone"
android:inputType="number"
android:maxLength="11"
android:maxLines="1" />
<Button
android:id="@+id/btn_Confirm"
android:layout_width="130dp"
android:layout_height="40dp"
android:layout_below="@+id/edtMobileNumber"
android:layout_centerHorizontal="true"
android:layout_marginTop="16dp"
android:background="@drawable/button_background_green"
android:text="@string/confirm"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@color/white" />
</RelativeLayout>
</ScrollView>
</android.support.design.widget.CoordinatorLayout>
And this is the errro I've got:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.company.myproject/com.company.myproject.Activities.LoginActivity}: android.view.InflateException: <merge /> can be used only with a valid ViewGroup root and attachToRoot=true
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2702)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2767)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5951)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: android.view.InflateException: <merge /> can be used only with a valid ViewGroup root and attachToRoot=true
at android.view.LayoutInflater.inflate(LayoutInflater.java:476)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.support.design.widget.Snackbar.make(Snackbar.java:143)
at com.company.myproject.Activities.LoginActivity.onCreate(LoginActivity.java:98)
as you can see, the error is about inflating layout but can't understand the reason: Caused by: android.view.InflateException: can be used only with a valid ViewGroup root and attachToRoot=true
It must be mentioned that I've used every solution that are suggested :
- my support design version is : implementation com.android.support:design:27.1.1'
- the activtiy is extend from AppCompatActivity
- The AppTheme is Theme.AppCompat.Light.NoActionBar
- I've used getWindow().getDecorView().findViewById(R.id.layout_coordinator), but nothing is solved
be glad someone could help me.
