In Android Studio 2.1.2, I try Basic Activity with a Fragment. Whether I see any writings, I cannot follow it. When I create a new project, it includes MainActivity.java, MainActivityFragment.java, activity_main.xml, content_main.xml and fragment_main.xml. But all writings do NOT include content_main.xml.
I try continueously and success in showing other fragment. But layout thraw. First Fragment(fragment_main.xml) dose NOT disappear. Second Fragment(fragment_sub.xml) appears in the back of first fragment.
How can I fix it? Thank you for your concerning in advance.
These are my java sources.
package com.example.john.ho05fragment;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void clickButtonNext(View view) {
Fragment fragment = new SubActivityFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace( R.id.fragment, fragment );
fragmentTransaction.commit();
}
public void clickButtonPrevious(View view) {
Fragment fragment = new MainActivityFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace( R.id.fragment, fragment );
fragmentTransaction.commit();
}
}
package com.example.john.ho05fragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A placeholder fragment containing a simple view.
*/
public class MainActivityFragment extends Fragment {
public MainActivityFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_main, container, false);
}
}
package com.example.john.ho05fragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A placeholder fragment containing a simple view.
*/
public class SubActivityFragment extends Fragment {
public SubActivityFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_sub, container, false);
}
}
These are my xml sources.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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"
android:fitsSystemWindows="true"
tools:context="com.example.john.ho05fragment.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
content_main.xml
<fragment 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:id="#+id/fragment"
android:name="com.example.john.ho05fragment.MainActivityFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:layout="#layout/fragment_main" />
fragment_main.xml
<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="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:background="#FF0000"
tools:context="com.example.john.ho05fragment.MainActivityFragment"
tools:showIn="#layout/activity_main">
<Button
android:id="#+id/buttonNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World! Main!!!"
android:onClick="clickButtonNext"/>
</RelativeLayout>
fragment_sub.xml
<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="match_parent"
android:paddingBottom="16dp"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingTop="16dp"
android:background="#0000FF"
tools:context="com.example.john.ho05fragment.SubActivityFragment"
tools:showIn="#layout/activity_main">
<Button
android:id="#+id/buttonPrevious"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World! Sub!!!!"
android:onClick="clickButtonPrevious"/>
</RelativeLayout>
Its because your fragment layouts are having margins from screen while your fragment of content_main is not having margins, so remove padding from both fragment layouts as below:
fragment_main.xml
<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="match_parent"
android:background="#FF0000"
tools:context="com.example.john.ho05fragment.MainActivityFragment"
tools:showIn="#layout/activity_main">
<Button
android:id="#+id/buttonNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World! Main!!!"
android:onClick="clickButtonNext"/>
</RelativeLayout>
fragment_sub.xml
<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="match_parent"
android:background="#0000FF"
tools:context="com.example.john.ho05fragment.SubActivityFragment"
tools:showIn="#layout/activity_main">
<Button
android:id="#+id/buttonPrevious"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World! Sub!!!!"
android:onClick="clickButtonPrevious"/>
</RelativeLayout>
Related
I have put viewpager in an activity and view pager contains 3 fragments but on running app it doesn't show the fragment related data.Following is the aatached code, please help.
Its not throwing any error but the fragment content is not visible though the tab-titles are visible. I saw certain links where they ask you to add getChildFragmentManager() but after searching i got to know that its not supported in activity.
MainActivity.java
package kbg.com.kbgpos;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
DrawerLayout drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle;
TabLayout tabLayout;
ViewPager viewPager;
ViewPagerAdapter viewPagerAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar=(Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawerLayout=(DrawerLayout) findViewById(R.id.drawer_layout);
actionBarDrawerToggle=new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.drawer_open,R.string.drawer_close);
actionBarDrawerToggle.getDrawerArrowDrawable().setColor(getResources().getColor(R.color.hamburgerColor));
drawerLayout.setDrawerListener(actionBarDrawerToggle);
tabLayout=(TabLayout) findViewById(R.id.tabLayout);
viewPager=(ViewPager) findViewById(R.id.viewPager);
viewPagerAdapter=new ViewPagerAdapter(getSupportFragmentManager());
viewPagerAdapter.addFragments(new Personal_Info_Fragment(),"Personal Info");
viewPagerAdapter.addFragments(new EducationalExperience_Info_Fragment(),"Edu & Exp Info");
viewPagerAdapter.addFragments(new OtherInfo_Fragment(),"Official Info");
viewPager.setAdapter(viewPagerAdapter);
tabLayout.setupWithViewPager(viewPager);
}
#Override
protected void onPostCreate(#Nullable Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
actionBarDrawerToggle.syncState();
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
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=".MainActivity"
android:id="#+id/drawer_layout">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="#layout/toolbar_layout"
android:id="#+id/toolbar"></include>
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabLayout"
app:tabMode="fixed"
app:tabGravity="fill"
android:background="#b3d9ff"
app:tabTextAppearance="#style/TabLayoutStyle">
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/viewPager">
</android.support.v4.view.ViewPager>
<android.support.design.widget.NavigationView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/navigation_view"
android:layout_gravity="start"
app:headerLayout="#layout/navigation_drawer_header"
app:itemIconTint="#006699"
app:menu="#menu/drawer_menu">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
Personal_Info_Fragment
package kbg.com.kbgpos;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class Personal_Info_Fragment extends Fragment {
public Personal_Info_Fragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_personal__info_, container, false);
}
}
ViewPagerAdapter.java
package kbg.com.kbgpos;
import android.content.Context;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import java.util.ArrayList;
public class ViewPagerAdapter extends FragmentPagerAdapter {
ArrayList<Fragment> fragments=new ArrayList<>();
ArrayList<String> tabTitles=new ArrayList<>();
public void addFragments(Fragment fragments,String titles){
this.fragments.add(fragments);
this.tabTitles.add(titles);
}
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return fragments.get(position);
}
#Override
public int getCount() {
return fragments.size();
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return tabTitles.get(position);
}
}
fragment_personal__info_.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".Personal_Info_Fragment">
<android.support.v7.widget.CardView
android:id="#+id/info_cardView"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_margin="5dp"
card_view:cardElevation="2dp"
card_view:contentPadding="5dp"
card_view:cardCornerRadius="2dp"
card_view:cardBackgroundColor="#e5c68b">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/infoIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_info_black_24dp"
android:layout_centerVertical="true"
android:layout_marginRight="2dp"/>
<TextView
android:layout_toRightOf="#id/infoIcon"
android:layout_marginLeft="4dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Please Enter Complete and Valid Information Within the Forms As This Will Be Treated As Final Info"
android:textColor="#android:color/white"
android:textSize="14sp"
android:textAllCaps="true"
android:textStyle="bold"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</FrameLayout>
Please help as how can i see the content of fragments on viewpager tabs which are shown empty at the moment.
A DrawerLayout is supposed to have 2 children, the main content and the navigation view.
In your case you have 3 children:
<DrawerLayout ...>
<AppBarLayout />
<ViewPager />
<NavigationView />
</DrawerLayout>
So try to wrap the AppBarLayout and ViewPager into a LinearLayout so that in the end the DrawerLayout to have just 2 children as expected.
<DrawerLayout ...>
<LinearLayout orientation="vertical">
<AppBarLayout />
<ViewPager />
</LinearLayout>
<NavigationView />
</DrawerLayout>
I'm pretty new to coding so I might not express myself correctly, please bear with me.
I have a fragment inflated inside a layout that includes a toolbar. When I open the fragment, I want to add a button (not a menu, just a button to navigate to another fragment).
My issue is I don't know how to instantiate the button from my Fragment class to add an icon and an onClickListener.
Here's my xml files:
The layout that contains my fragment:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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="be.ac.ulg.mobulis.Activities.MainActivity"
android:orientation="vertical">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/blue"
app:popupTheme="#style/AppTheme.PopupOverlay" >
<Button
android:id="#+id/toolbar_button"
android:layout_width="#dimen/margin"
android:layout_height="#dimen/margin"
android:layout_gravity="right"
android:layout_marginRight="#dimen/innerLargeMargin"
/>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
</LinearLayout>
The layout in which the fragment is inflated:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:design="http://schemas.android.com/apk/res-auto"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="be.ac.ulg.mobulis.Activities.MainActivity"
tools:showIn="#layout/app_bar_main"
android:background="#color/orange">
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#f1f1f1">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
design:menu="#menu/bottom_nav_items"
android:background="#color/orange"
android:backgroundTint="#color/white"
design:itemIconTint="#color/white"
design:itemTextColor="#color/white"
design:itemBackground="#drawable/bottom_bar_tint_selector"
/>
</LinearLayout>
So what I want to do is something like
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
toolBarButton = (???).findViewById(R.id.toolbar_button)
}
activity_main.xml to add Button inside android.support.v7.widget.Toolbar
<?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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="#FFA000">
<Button
android:id="#+id/toolbarbtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
android:layout_gravity="right"/>
</android.support.v7.widget.Toolbar>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
</LinearLayout>
MainActivity.java
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
Button toolBarBtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle("Toolbar with button example");
toolbar.setSubtitle("Toolbar subtitle");
toolbar.setLogo(android.R.drawable.ic_menu_info_details);
toolBarBtn = (Button)findViewById(R.id.toolbarbtn);
toolBarBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getBaseContext(),
"Button in ToolBar clicked",
Toast.LENGTH_LONG).show();
}
});
}
}
Set This onClick Listener in your parent activity of Fragment.
try this to access your button of toolbar from activity
private Toolbar toolbar;
toolbar = (Toolbar) findViewById(R.id.ar_toolbar);
Button toolbar_button = (Button) toolbar.findViewById(R.id.toolbar_button);
setSupportActionBar(toolbar);
toolbar_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(ChatActivity.this, "Clicked", Toast.LENGTH_SHORT).show();
}
});
you have to write like below
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
toolBarButton = (Button) view.findViewById(R.id.toolbar_button);
where view is your view which you bind at your onCreateView in your Fragment.
What I do is to bind the View inside the activity and then create an interface who works with that View.
public class Activity implements ButtonListener{
//findViewbyId or Butterknife
void doSomething(){
toolBarButton.something()
}
Interface
}
public interface ButtonListener{
void doSomething();
}
Fragment
public class Fragment extends Fragment{
public ButtonListener mButton;
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
mButton = (ButtonListener)getActivity();
super.onCreate(savedInstanceState);
}
}
You can access button directly without toolbar using (Button) findViewById(R.id.toolbar_button).
Toolbar toolbar = (Toolbar) findViewById(R.id.ar_toolbar);
Button toolbar_button = (Button) findViewById(R.id.toolbar_button);
setSupportActionBar(toolbar);
I want to add 2 fragments in a single layout like this:
I was able to do it using static fragment method but not able to do it dynamically. I want to target API 14 and above.
Here is the code:
activity_main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<FrameLayout
android:id="#+id/new_placeholder"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<FrameLayout
android:id="#+id/my_placeholder"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</FrameLayout>
</LinearLayout>
fragment1.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#00ff00"
>
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="fragment first"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_weight="1"
/>
</LinearLayout>
fragment2.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#0000ff">
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="fragment second"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_weight="1"
/>
</LinearLayout>
fragment1.java:
package org.hinduismfacts.www.dynamicfragment;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by Rahul on 07-08-2017.
*/
public class fragment1 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment1,container, false);
}
}
fragment2.java:
package org.hinduismfacts.www.dynamicfragment;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by Rahul on 07-08-2017.
*/
public class fragment2 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment2,container, false);
}
}
MainActivity.java:
package org.hinduismfacts.www.dynamicfragment;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
// Create new fragment and transaction
Fragment newFragment = new fragment1();
Fragment myFragment = new fragment2();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the back stack
transaction.add(R.id.new_placeholder, newFragment);
transaction.add(R.id.my_placeholder, myFragment);
transaction.commit();
}
}
In the output I am getting only first fragment displayed. The second fragment is not getting added. Output:
Can you please tell me what is going wrong?
please added android:layout_weight="1"
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/new_placeholder"
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="match_parent">
</LinearLayout>
<LinearLayout
android:id="#+id/my_placeholder"
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="match_parent"
>
</LinearLayout>
</LinearLayout>
You need layout weight android:layout_weight for both your frame layout
try below XML changes
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="2"
android:orientation="horizontal">
<FrameLayout
android:id="#+id/new_placeholder"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent">
</FrameLayout>
<FrameLayout
android:id="#+id/my_placeholder"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent">
</FrameLayout>
</LinearLayout>
The problem is in your activity_main.xml.
Use android:layout_weight="1" for each of your fragments container to show both of them on the screen.
Also fill_parent is deprecated. Consider using match_parent instead
I wrote an android app(Material style).
Here is the code:
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
<!--android:layout_toEndOf="#id/fab"
android:layout_toRightOf="#id/fab"-->
</android.support.design.widget.CoordinatorLayout>
content_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/activity_main" tools:context=".MainActivity">
<TextView
android:text="#string/sample_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--My layout-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/place_holder"
android:textEditSuggestionItemLayout="#color/colorAccent"
android:layout_gravity="bottom"
android:layout_weight="1"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="#string/btn_name"
android:textEditSuggestionItemLayout="#color/colorAccent"
android:layout_gravity="bottom"
/>
</LinearLayout>
</RelativeLayout>
Java code:
package com.enexl.ajaykulkarni_enexl.omgandroid;
import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import static android.widget.Toast.*;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
/*Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();*/
Context context = getApplicationContext();
String text = "Let us create an action now!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context,text,duration);
toast.show();
}
});
}
// private Toast makeText(Context context, CharSequnce text, int duration) {
// }
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Results:
When I click on editText field, key board pops up and header(ToolBar in top) goes out of view. Check it in this screen shot:
I want header(ToolBar in top) to stay in view when keyboard pops up. How can I do it?
I tried this in my manifest's activity:
android:windowSoftInputMode="stateVisible|adjustResize"
And it worked.
I had created a fragmenttabhost tab, and tab working only on tab click, not on swipe. How can I enable swipe in this.
here is my code
MainActivity.java
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;
import android.support.v4.view.ViewPager;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TabHost;
public class MainActivity extends FragmentActivity {
private FragmentTabHost mainTabs;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mainTabs = (FragmentTabHost)findViewById(android.R.id.tabhost);
mainTabs.setup(this, getSupportFragmentManager(), android.R.id.tabcontent);
mainTabs.addTab(mainTabs.newTabSpec("tab1").setIndicator("Tab 1"),
RecentFragment.class, null);
mainTabs.addTab(mainTabs.newTabSpec("tab2").setIndicator("Tab 2"),
ArchiveFragment.class, null);
mainTabs.addTab(mainTabs.newTabSpec("tab3").setIndicator("Tab 3"),
ArchiveFragment.class, null);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
activity_main.xml
<android.support.v4.app.FragmentTabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f6f4ec">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#c0413c">
<TextView android:text="#string/app_name"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="29sp"
android:textColor="#ffffff" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="30dp"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"/>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0" />
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
RecentFragment.java
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.support.v4.app.Fragment;
public class RecentFragment extends Fragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_recent, container, false);
return v;
}
#Override
public void onDestroyView() {
super.onDestroyView();
}
}
Fragment_recent.xml
<FrameLayout 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:background="#c0413c"
>
<!-- TODO: Update blank fragment layout -->
<TextView android:text="#string/app_name"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="29sp"
android:textColor="#ffffff" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
android:background="#c0413c">
<TextView android:text="#string/app_name"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="29sp"
android:textColor="#ffffff" />
</RelativeLayout>
</FrameLayout>
You can take a look at this
http://developer.android.com/training/implementing-navigation/lateral.html
This example demonstrates how to use ActionBar tabs with swipe navigation.
If you want to use FragmentTabHost instead, you need to add a ViewPager, attach an adapter with it and change the tabs when swipe event is detected by the adapter.