Add an extra button in AlertDialog in DialogFragment-CodePudding

I have a custom DialogFragment, and was trying to use AlertDialog in onCreateDialog(). The AlertDialog only has title, singleChoiceItem, positiveButton, etc. But I would like to add an extra button on the top left to be a back button that I could add a onClickListener. How could I do that? Thanks!

CodePudding user response：

You can create your own xml file with a button on left corner.Now that you have created an Xml file as Custom layout. inflate that file using below code

 AlertDialog.Builder builder
        = new AlertDialog.Builder(this);
    builder.setTitle("Name");

    // set the custom layout
    final View customLayout
        = getLayoutInflater()
              .inflate(
                  R.layout.custom_layout,
                  null);
    builder.setView(customLayout);

After creating your own custom layout set a listener for the button that you have positioned on top left corner in xml by calling findViewByID on Dialog and then calling closeButton.setOnClickListener.

CodePudding user response：

You can use custome dialoge. Your Kotling Class:

    class CustomDialog(var c: Activity) : Dialog(c), View.OnClickListener {
    var d: Dialog? = null
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        requestWindowFeature(Window.FEATURE_NO_TITLE)
        setContentView(R.layout.dailog_custom)
    }

    override fun onClick(v: View) {

    }
}

XML:

        <?xml version="1.0" encoding="utf-8"?>
    <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_marginHorizontal="@dimen/extra_padding"
        android:background="@drawable/bg_ripple_secondary_variant_less_rounded"
        android:padding="20dp">

        <TextView
            android:id="@ id/tvTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            android:textStyle="bold"
            android:textSize="@dimen/_12sdp"
            android:textColor="@color/red"
            android:text="Title" />

        <TextView
            android:id="@ id/tvMessage"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/less_padding"
            app:layout_constraintTop_toBottomOf="@id/tvTitle"
            app:layout_constraintStart_toStartOf="parent"
            android:text="Your Message"
            android:textStyle="bold"
            android:textSize="@dimen/_12sdp"
            android:textColor="?attr/colorOnPrimary" />

        <TextView
            android:id="@ id/btnYes"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toBottomOf="@id/tvMessage"
            app:layout_constraintEnd_toEndOf="parent"
            android:padding="@dimen/fab_padding"
            android:textColor="@color/red"
            android:text="@string/yes" />

        <TextView
            android:id="@ id/btnNo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toBottomOf="@id/tvMessage"
            app:layout_constraintEnd_toStartOf="@id/btnYes"
            android:padding="@dimen/fab_padding"
            android:textColor="?attr/colorOnPrimary"
            android:text="@string/no" />

    </androidx.constraintlayout.widget.ConstraintLayout>