My app consists of multiple activities, they all have a common layout in the sense that they are drawer layout, have a tool bar, but they have different main content. Specifically, their complete layouts are as follows
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="#+id/relative_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<android.support.v7.widget.Toolbar
android:id="#+id/action_bar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
/>
.......main content, this is different for each activity..........
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
Since the shared components are defined at "parent level", I'm not sure how to structure these layouts so that the generic layout is only defined once. Is it possible to achieve that? Thanks.
Two options:
1. ViewStub
Define the main layout with a ViewStub where you will have different sub-layouts.
A ViewStub is an invisible, zero-sized View that can be used to lazily
inflate layout resources at runtime. When a ViewStub is made visible,
or when inflate() is invoked, the layout resource is inflated. The
ViewStub then replaces itself in its parent with the inflated View or
Views.
In each Activity you set the same layout and then inflate the specific sub-layout onto the ViewStub.
2. Fragments
If you want to avoid having massive quantities of code on a single Activity you might want to think about using Fragments.
Some other topics to guide you:
How to use View Stub in android
Loading Views On Demand
Yes it is possible by using Fragment. For this structure first you need to define a FrameLayout in your activity_main.xml . This framelayout will be replaced by the contents of the fragments over the time.
<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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/container_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
</LinearLayout>
<FrameLayout
android:id="#+id/container_body"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" >
</FrameLayout>
</LinearLayout>
<fragment
android:id="#+id/fragment_navigation_drawer"
android:name="com.safallwa.zahan.oreader.FragmentDrawer"
android:layout_width="#dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="#layout/fragment_navigation_drawer"
tools:layout="#layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>
Then you can create your layouts as you want and classes as those extends Fragment . Set these new layouts as contentView of Fragment classes. Now these fragments can replace that FrameLayout of activity_main. Suppose we have a Framgent class name First_Fragment.Java then we can show that fragment by replacing activity_main framelayout by below code
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.container_body, fragment);//container_body is the id of the framelayout
fragmentTransaction.commit();
For full featured example with navigation drawer also we can follow below link
http://www.codedisect.com/?p=134
Related
I have this code in my main activity for the fragments.
<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"
android:id="#+id/mainView"
android:orientation="vertical"
android:layout_marginBottom="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/mainView2"/>
</LinearLayout>
And i use this code in my main activity to inflate the fragments
FragmentManager fm = getSupportFragmentManager();
fm.beginTransaction().add(R.id.mainView,new MainViewFragment())
.add(R.id.mainView2,new SecondProductLayout())
.commit();
But i'm still getting the 1st fragments view, what am i doing wrong and how can i fix this problem?
split the activity screen two parts inflate your fragment in your activity
You can add static fragments in your xml .
See those links :
https://developer.android.com/guide/practices/tablets-and-handsets.html
http://android-kaizen.com/2014/09/20/adding-fragments-to-activities/
http://android-kaizen.com/2015/01/04/tutorial-multi-pane-fragments/
Supporting different screen sizes with dynamic or static fragments?
You got to split your layout into two parts using weight and inflate two fragments as usual we do.
<?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:id="#+id/frameContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.android.buffer.exampleapplication.MainActivity">
<FrameLayout
android:id="#+id/flFragment1"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<FrameLayout
android:id="#+id/flFragment2"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
java code to inflate the fragment.
getFragmentManager().beginTransaction().replace(R.id.flFragment1, FragmentA.getInstance(msg)).commit();
getFragmentManager().beginTransaction().replace(R.id.flFragment2, FragmentA.getInstance(msg)).commit();
i have problem with my FragmentLayout in main class. i have app for location, in my main activity is map (google API) and i have a menu, FragmentLayout (in my main activity XML) is wrap_content (height), when i click on Settings, FragmentLayout is shows but its not cover the whole screen just a part and under settings i see map (which not should be there). When i set up match_parent for my FragmentLaout then i dont see the map in from my main activity.
Here is my code:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
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"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.globallogic.cityguide.MainActivity"
android:id="#+id/mainLayout"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include layout="#layout/navigation_action"
android:layout_height="wrap_content"
android:layout_width="match_parent" />
// THIS IS MY FRAGMENTS:
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" //here is this option which cover my whole screen when i put there match_parent
android:id="#+id/main_container"
android:layout_gravity="center"
>
</FrameLayout>
<include layout="#layout/activity_outdoor_map"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/navigation_view"
app:menu="#menu/navigation_menu"
app:headerLayout="#layout/navigation_action"
android:layout_gravity="start"
>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
You are using different containers, while for this purpose you'd probably rather want to just use one main container (like your xml says) and replace the fragments in it.
This way you can set your FrameLayout to fit the whole screen and just replace the settings Fragment and the Map fragment when necessary.
So the code should be changed in your MainActivity.
Let's suppose your MainActivity already extends AppCompatActivity and we have an instance of mapFragment, then you'll want to load your Map Fragment first, something like so:
// Add the fragment to the 'main_container' FrameLayout
getSupportFragmentManager().beginTransaction().add(R.id.main_container, mapFragment).commit();
now when you press the settings button you will just replace the fragment:
SettingsFragment settingsFragment = new SettingsFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
// Replace whatever is in the main_container view with this fragment,
// and add the transaction to the back stack if you want the user to be able to navigate back
transaction.replace(R.id.main_container, settingsFragment);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
More info: here
You can add this in your layout file. And other menu option from your java file.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="342dp"
android:layout_height="473dp" android:id="#+id/map" tools:context=".MapsActivity"
android:name="com.google.android.gms.maps.SupportMapFragment" />
</LinearLayout>
</LinearLayout>
In my app, I want to keep a same Ad banner at the bottom of all the screens, so I use one Activity with multiple fragments.
In the Activity's layoutfile(activity_mail.xml), I have a FrameLayout as the container of the fragments and a AdView at the bottom to show the banner Ads from Admob.
<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"
tools:context=".MainActivity"
tools:ignore="MergeRootFrame">
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<fragment
android:id="#+id/adFragment"
android:name="com.jiyuzhai.wangxizhishufazidian.MainActivity$AdFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
Layout of the fragment to replace the existing fragment
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:background="#drawable/theme_color"
android:layout_alignParentTop="true"
android:text="Topbar in fragment"
android:textColor="#android:color/white"
android:textSize="30sp"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:background="#drawable/theme_color"
android:layout_alignParentBottom="true"
android:text="Bottombar in fragment"
android:textColor="#android:color/white"
android:textSize="30sp"/>
</RelativeLayout>
Code to replace the existing fragment
fragment = new LinmoFragment();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.setCustomAnimations(R.anim.fade_in, R.anim.fade_out, R.anim.fade_in, R.anim.fade_out);
fragmentTransaction.replace(R.id.container, fragment);
fragmentTransaction.commit();
But when I replace the fragments in the container, the bottom area of the fragment was hide by the AdView, in other words, the fragment was out of the Framelayout, I want the fragment totally inside the container. is that possible?
The following is what I want
and this is what I get(The Ad banner hide the bottombar of the fragment)
Any idea?
By the way, I find there is no way to keep a same banner for all screens with multiple Activities in Android, many people on SO said you need to use Single Activities with multiple fragments, then you can add/remove your fragments dynamically without reload new banner, but, there is no code found for this approach, so I try it myself. if you have better solutions, please help me.
Try this:
<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"
tools:context=".MainActivity"
tools:ignore="MergeRootFrame">
<fragment
android:id="#+id/adFragment"
android:name="com.jiyuzhai.wangxizhishufazidian.MainActivity$AdFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#id/adFragment" />
</RelativeLayout>
The changes I made to your original layout file were moving the adFragment definition above the frame layout, made the frame layout height wrap content, and added the layout_above attribute to make the frame layout appear above the ad fragment.
An alternative approach would have been to use a vertical linear layout with the frame layout first with a layout weight of 1 (and the ad fragment would not have a layout weight).
By the way, the fragment is contained completely within your frame layout. The frame layout was just being overlapped by the ad fragment in your original layout. The above suggestion makes it so that there is no overlap.
Hope this helps.
If you want to both avoid overlapping and make the container fill the screen then you should just change RelativeLayout to LinearLayout.
<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"
tools:context=".MainActivity"
tools:ignore="MergeRootFrame"
android:orientation:"vertical"
>
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<fragment
android:id="#+id/adFragment"
android:name="com.jiyuzhai.wangxizhishufazidian.MainActivity$AdFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
I have an activity whose root layout is a drawer layout, with main content being a view pager (and com.astuetz.viewpager.extensions.PagerSlidingTabStrip to assist viewpager. Now what i want to do is that when a particular item is selected in the navigation drawer, the view pager (along with the tab names strip) gets replaced by a single fragment. My activity layout file is this:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
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" >
<com.astuetz.viewpager.extensions.PagerSlidingTabStrip
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="48dip"
android:background="#drawable/background_tab"
app:underlineColor="#E67E22"
app:indicatorColor="#E67E22" />
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/tabs"
tools:context=".UserActivity" >
</android.support.v4.view.ViewPager>
<FrameLayout android:id="#+id/fragmentToSwap"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
<ListView android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="#666"
android:background="#E8E8E8"
/>
</android.support.v4.widget.DrawerLayout>
Now this is what i am trying to replace the view pager with fragment. I am not sure about this myself, a bit confused which element to put in replace method.
UserProfileActivity userProfileFragment = new UserProfileActivity();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragmentToSwap, userProfileFragment);
transaction.addToBackStack(null);
transaction.commit();
What currently is happening is the new fragment elements overlap the view pager while i am still able to use the view pager in background. Please help me figure it out.
The fragment overlaps the ViewPager because they are all in a RelativeLayout together - if you want to hide the ViewPager and the tab strip, you can call setVisibility(View.GONE) on each of them to hide them from view.
// assuming you do not already have a reference to them,
// find them by their ID and hide them
findViewById(R.id.tabs).setVisibility(View.GONE);
findViewById(R.id.pager).setVisibility(View.GONE);
Edit: Actually, you could place the ViewPager and tab strip in a fragment of its own, and attach that to the fragmentToSwap FrameLayout so that your fragment transaction would actually do the replacement - depending on how your app is architected, that may make more sense.
OK, I'm trying to create a universal app that shows 3 tabs in phone view and 3 columns in tablet landscape. As such I created several different XML layouts using Linear Layout.
However, using fragments, I came across a problem - I want to remove the leftmost column when a selection is made in that fragment. I believed I could do this but it turns out I can't remove fragments declared in XML. So now, I'm tring to create the middle and right columns in XML:
<?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:id="#+id/menu_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<fragment
android:id="#+id/classification_fragment"
android:name="uk.colessoft.android.hilllist.fragments.MenuClassificationFragment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
tools:layout="#layout/list_classifications" >
</fragment>
<fragment
android:id="#+id/map"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
class="com.google.android.gms.maps.SupportMapFragment" />
</LinearLayout>
Then add the first column using
FragmentManager fragmentManager = getSupportFragmentManager();
android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
MenuCountryFragment countryFragment=new MenuCountryFragment();
fragmentTransaction.add(R.id.menu_layout, countryFragment, "country_menu").commit();
but I have two problems:
a) The above code only puts the fragment at the right hand side of the Linear Layout and I can't specifiy position. It needs to be on the left.
b) XML gave me the freedom to define different weights for the fragment based on screen size/orientation. Setting layout parameters programmatically in the Fragments seems a backward step. I got round this by putting a placeholder view in the xml that I read the layout params from this and assign them in onCreateView but its a hack.
I know I can put the fragment in the correct place by adding it as a child of the first element in the xml but when I do this and remove the fragment it leaves a blank space.
Create a placeholder for the new fragment you want to add (in your XML), something like this...
<?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:id="#+id/menu_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<FrameLayout
android:id="#+android:id/realtabcontent"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<fragment
android:id="#+id/classification_fragment"
android:name="uk.colessoft.android.hilllist.fragments.MenuClassificationFragment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
tools:layout="#layout/list_classifications" >
</fragment>
<fragment
android:id="#+id/map"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
class="com.google.android.gms.maps.SupportMapFragment" />
</LinearLayout>
Then, instead of adding a new fragment at runtime, replace the content of the empty container...
FragmentManager fragmentManager = getSupportFragmentManager();
android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
MenuCountryFragment countryFragment=new MenuCountryFragment();
fragmentTransaction.replace(R.id.realtabcontent, newFrag).commit();
fragmentManager.executePendingTransactions();
Hope this helps.