Android divide activity into two parts -


currently i'm developing application android tablet. search method or approach divide screen 2 pieces , make subview visible. don't know found effect (ios or android app).

for illustration have 2 pictures attached:

enter image description here

after click on view x subview should appear below (the rest of screen moved down):

enter image description here

does know effect? greetings!

in android studio, can inflate fragment activity.

here's example:

in main2activity.java

public class main2activity extends appcompatactivity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main2);          final framelayout framelayout = (framelayout) findviewbyid(r.id.framelayout);         button btn = (button) findviewbyid(r.id.button3);         btn.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view view) {                 plusonefragment myf = new plusonefragment();                 framelayout.setvisibility(view.visible);                 fragmenttransaction transaction = getsupportfragmentmanager().begintransaction();                 transaction.add(r.id.framelayout, myf);                 transaction.commit();              }         });     } }

in activity_main2.xml

<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.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"     tools:context="com.testing.testinglibraryapps.main2activity">      <button         android:id="@+id/button3"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="button"         app:layout_constrainttop_totopof="parent"         android:layout_margintop="8dp"         android:layout_marginleft="8dp"         app:layout_constraintleft_toleftof="parent"         android:layout_marginstart="8dp" />      <button         android:id="@+id/button4"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="button"         app:layout_constrainttop_totopof="parent"         android:layout_margintop="8dp"         android:layout_marginright="8dp"         app:layout_constraintright_torightof="parent"         android:layout_marginend="8dp" />      <framelayout         android:id="@+id/framelayout"         android:layout_width="0dp"         android:layout_height="200dp"         android:layout_marginleft="8dp"         android:layout_marginright="8dp"         android:layout_margintop="0dp"         android:visibility="gone"         app:layout_constraintleft_toleftof="parent"         app:layout_constraintright_torightof="parent"         app:layout_constrainttop_tobottomof="@+id/button3">      </framelayout>      <button         android:id="@+id/button5"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="button"         android:layout_marginleft="8dp"         app:layout_constraintleft_toleftof="parent"         android:layout_margintop="0dp"         app:layout_constrainttop_tobottomof="@+id/framelayout" />      <button         android:id="@+id/button6"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="button"         android:layout_marginright="8dp"         app:layout_constraintright_torightof="parent"         android:layout_margintop="0dp"         app:layout_constrainttop_tobottomof="@+id/framelayout" /> </android.support.constraint.constraintlayout>

take look, put trick of framelayout visibility put view under them going down.

and plusonefragment in example, u can change own fragment


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