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android – How to wrap the height of a ViewPager to the height of its current Fragment?

Posted by: admin April 23, 2020 Leave a comment

Questions:

I made a ScrollView containing a ViewPager, but the ViewPager does not grow in height. When the content inside the ViewPager is too big, it get ‘pucht'(?) inside, the table is the space that shrinks.

I have search for a solution and found that the problem is the wrap_content, when the ViewPager is loaded there is no content. So the ViewPager keeps the screen height. The solutions that I found are not for FragmentPagerAdapter, so i have edit this question.

Please point me in the right direction.

Greetings, Christophe VD.

The main layout is this, the timetable on the bottom is one of the problems:
enter image description here
It needs more like this:
enter image description here

The FragmentPagerAdapter is:

import android.content.Context;
import android.graphics.pdf.PdfDocument;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class film_tabs_adapter extends FragmentPagerAdapter {
    private final String[] TITLES = { "Info", "Comment", "Cast", "Muziek"};
    String[] Film_Data;

    public film_tabs_adapter(FragmentManager fm, String[] Film_Data_in) {
        super(fm);
        Film_Data = Film_Data_in;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return TITLES[position];
    }


    @Override
    public int getCount() {
        return 4;
    }

    @Override
    public Fragment getItem(int position) {
        Fragment fragment =null;
        Bundle bundle = new Bundle();
        bundle.putStringArray("Film_Data", Film_Data);
        switch(position) {
            case 0:
                //return new film_info();
                fragment = new film_info();
                fragment.setArguments(bundle);
                return fragment;
            case 1:
                return new film_coment();
            case 2:
                return new film_cast();
            case 3:
                return new film_sound();
            default:
                return new film_info();
        }
    }

}

And the class of the Fragment:

    import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

public class film_info extends Fragment {
    TextView label_locatie;
    ...
    TableLayout TimeTabel;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.activity_film_info, container, false); // layout (activity_film_info) openen
        Context context = inflater.getContext();
        DatabaseVerwerker DB = new DatabaseVerwerker(context);
        String[] Film_Data =  getArguments().getStringArray("Film_Data");
        ...
        return view;
    }

}

The Activity:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:fillViewport="true"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dp"
            android:id="@+id/header">

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="120dp">

                <ProgressBar
                    style="?android:attr/progressBarStyleHorizontal"
                    android:progressDrawable="@drawable/redprogressbar"
                    android:layout_width="match_parent"
                    android:layout_height="2dp"
                    android:id="@+id/DownloadCover"
                    android:layout_gravity="top" />

                <ImageView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/FilmCover"
                    android:src="@drawable/cover"
                    android:adjustViewBounds="true"
                    android:padding="-5dp"
                    android:scaleType="centerCrop" />

            </FrameLayout>

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="left|right|top"
                android:paddingLeft="7dp">

                <LinearLayout
                    android:orientation="horizontal"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TableRow
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent">

                        <ImageView
                            android:layout_width="82dp"
                            android:layout_height="120dp"
                            android:id="@+id/FilmPoster"
                            android:src="@drawable/poster_x"
                            android:adjustViewBounds="true"
                            android:layout_gravity="bottom|left" />
                    </TableRow>

                    <TableRow
                        android:layout_width="match_parent"
                        android:layout_height="match_parent">

                        <TextView
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:text="New Text"
                            android:id="@+id/FilmTitel"
                            android:textStyle="bold"
                            android:gravity="center_horizontal"
                            android:layout_marginTop="120dp" />
                    </TableRow>
                </LinearLayout>

            </FrameLayout>

        </FrameLayout>

        <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:id="@+id/body">
            <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                xmlns:tools="http://schemas.android.com/tools"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                tools:context=".MainActivity" >

                <com.astuetz.PagerSlidingTabStrip
                    android:id="@+id/tabs"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="#dadada"
                    app:pstsShouldExpand="true"
                    app:pstsDividerColor="#EDEDED"
                    app:pstsIndicatorColor="#C3263E"
                    app:pstsDividerPadding="10dp"
                    app:pstsIndicatorHeight="4dp"
                    app:pstsTabPaddingLeftRight="0dp"
                    />

                <android.support.v4.view.ViewPager
                    android:id="@+id/pager"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_below="@+id/tabs"
                    tools:context=".MainActivity"
                    android:soundEffectsEnabled="false" />

            </RelativeLayout>
        </FrameLayout>
    </LinearLayout>
</ScrollView>

The Fragment:

How to&Answers:

You can customize the ViewPager to resize the ViewPager to it’s current page size on page swipe.

You can use the below code.

Declare it in xml:

After that call reMeasureCurrentpage function on page swipe.

Answer:

I really liked @abhishek-v answer, but made some upgrades:

  • addPageChangeListener(...) called inside our ViewPager (don’t need to call reMeasureCurrentPage(...) manually outside on page swipe)
  • don’t need to store mCurrentPagePosition, because we can use getCurrentItem()
  • removed waste try/catch block

ViewPager now looks like:

Answer:

Finally found a better solution for WrapContentViewPager!

The other solution contain some bug that hard to be solved, but I think this solution can be simply applied in our code

I found it on this site https://github.com/akhahaha/burn-android/blob/master/app/src/main/java/com/ucla/burn/android/WrapContentViewPager.java

Here is the code

Answer:

in my case, i created imageslider with viewpager. initial value of child is null also at the end of index, value of child is null. so, i made some upgrades for repitch answer, because it didn’t handle (child==null)

ViewPager now looks like:

also, you can add amount of height whatever you want, if the last item of viewpager stick to circlepageindicator, like this :
int h = child2.getMeasuredHeight()+50;

Answer:

On Android 8.0, you have to invoke another requestLayout to make it work:

Answer:

If these answer still can’t fix the problem, I can provide another choice.
At the PagerAdapter java file, you can measure the page height manually and set the container’s LayoutParams.height in instantiateItem method. Like this: