DialogFragment example, something wrong on Android 6 Marshmallow (emulator)

It's a example to implement DialogFragment. Please check the screenshots of running on Android Emulators of Android 4.1 Jelly Bean with API 16, Android 5.1 Lollipop with API 22 and Android 6.0 Marshmallow with API 23. If the emulator of Android 6.0 Marshmallow work properly, DialogFragment display wrong on Marshmallow.

Check this video:


layout/fragment_dialog.xml, DialogFragment layout.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:padding="10dp"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@mipmap/ic_launcher"/>

    <TextView
        android:id="@+id/dialogtext"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textStyle="italic|bold"/>

</LinearLayout>

MainActivity.java with DialogFragment.

package com.blogspot.android_er.androiddialogfragment;

import android.app.DialogFragment;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    EditText inputTextField;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        inputTextField = (EditText)findViewById(R.id.inputtext);
        Button btnOpen = (Button)findViewById(R.id.opendialog);
        btnOpen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showDialog();
            }
        });
    }

    void showDialog() {
        FragmentTransaction ft = getFragmentManager().beginTransaction();
        Fragment prev = getFragmentManager().findFragmentByTag("dialog");
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);

        String inputText = inputTextField.getText().toString();

        DialogFragment newFragment = MyDialogFragment.newInstance(inputText);
        newFragment.show(ft, "dialog");

    }

    public static class MyDialogFragment extends DialogFragment {

        String mText;

        static MyDialogFragment newInstance(String text) {
            MyDialogFragment f = new MyDialogFragment();

            Bundle args = new Bundle();
            args.putString("text", text);
            f.setArguments(args);

            return f;
        }

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            mText = getArguments().getString("text");

        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View dialogView = inflater.inflate(R.layout.fragment_dialog, container, false);
            TextView dialogText = (TextView)dialogView.findViewById(R.id.dialogtext);
            dialogText.setText(mText);

            return dialogView;
        }
    }
}

layout/activity_main.xml, main layout.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:background="#808080">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:autoLink="web"
        android:text="http://android-er.blogspot.com/"
        android:textStyle="bold" />

    <EditText
        android:id="@+id/inputtext"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Type something"/>
    <Button
        android:id="@+id/opendialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Open DialogFragment"
        android:textAllCaps="false"/>
</LinearLayout>

reference: http://developer.android.com/reference/android/app/DialogFragment.html

---

To fixed it, edit layout/fragment_dialog.xml, modify android:layout_width of <ImageView> from "wrap_content" to "match_parent".

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:padding="10dp"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:src="@mipmap/ic_launcher"/>

    <TextView
        android:id="@+id/dialogtext"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textStyle="italic|bold"/>

</LinearLayout>

android:layout_width="wrap_content"

android:layout_width="match_parent"