Single Activity and Multiple Fragment with different toolbar layouts - android

I have an app with Single Activity multiple Fragments architecture in my app. The problem is, there is one listing fragment with normal Toolbar, from here user can click and go to Details screen. Now in Details screen, I want the Activity to become Fullscreen with CoordinatorLayout and Collapsing Toolbar with StatusBar area covered in layout as transparent. And when user goes back to Listing screen. The Activity should disable fullscreen and again get the StatusBar color.
The problem here is I am setting the activity as fullscreen using following code:
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
And when the user goes back, I am disabling the Fullscreen by the following code:
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_VISIBLE
After disabling the fullscreen, in my previous fragment, I am getting UI bounds clipped off.
Thanks in advance.


Try this in your DetailsActivity -
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// remove title
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
}


I would recommend using
android:theme="#style/AppTheme.NoActionBar"
for your activity.
and in your XML activity build in custom toolbar
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_top"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:minHeight="?attr/actionBarSize"
android:background="#color/action_bar_bkgnd"
app:theme="#style/ToolBarTheme" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Toolbar Title"
android:layout_gravity="center"
android:id="#+id/toolbar_title" />
</android.support.v7.widget.Toolbar>
and in your activity class
Toolbar toolbarTop = (Toolbar) findViewById(R.id.toolbar_top);
TextView mTitle = (TextView) toolbarTop.findViewById(R.id.toolbar_title);
Now for your fragments, all you have to do is to show or hide this toolbar depends on the fragment you want to the same or another toolbar , And you can do that with OnResume and OnPause of the fragments.

Related

Custom SupportActionBar looks different after redisplayed

I'm trying to build a Single Activity App and using a custom SupportActionBar in my Activity. The other Views are all Fragments.
My custom SupportActionBar looks like this:
Now I have the case that I have to display a video in fullscreen mode in a Fragment. Therefore I'm just calling the hide function of the SupportActionBar:
override fun onResume() {
super.onResume()
(activity as MainActivity).supportActionBar!!.hide()}
That works fine, but when I want to display the bar again after the video is finished the bar looks not the same.
In my Fragment I'm calling the show function from SupportActionBar and the initToolbar function of the MainActivity:
override fun onStop() {
super.onStop()
(activity as MainActivity).supportActionBar!!.show()
(activity as MainActivity).initToolbar()
}
And here is the initToolbar method from my Activity:
fun initToolbar() {
setSupportActionBar(toolbar_all_custombar)
supportActionBar!!.setDisplayShowTitleEnabled(false)
supportActionBar!!.setIcon(R.drawable.ic_launcher)
}
The toolbar layout:
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar_all_custombar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:fitsSystemWindows="true"
android:minHeight="?attr/actionBarSize"
app:titleTextAppearance="#style/AppTheme.TitleTextStyle"
app:titleTextColor="#color/textColorPrimary">
<TextView
android:id="#+id/toolbar_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/all_toolbar_title"
android:textColor="#android:color/white"
android:textStyle="bold|italic"/>
</android.support.v7.widget.Toolbar>
I don't get it why my bar looks different after showing it again.
What is the cause of this behaviour?

Try it once by putting some paddings or margins (bottom) on the TextView.

Use setSystemUiVisibility
Instead of supportActionBar!!.hide()
hide(): If the window hosting the ActionBar does not have the feature FEATURE_ACTION_BAR_OVERLAY it will resize application content to fit the new space available.
setSystemUiVisibility(): Hiding the ActionBar through this system UI flag allows you to more seamlessly hide it in conjunction with other screen decorations.

After making the SupportActionBar visible again, you could try calling (activity as MainActivity).supportActionBar.invalidate(); to redraw all views within it. This should cause your supportActionBar to be correctly redrawn.

You can set supportToolBar as null when you want to hide it and then restore the previous value when you want to show it.
This is tested and works in my case.

Thank you for your help!
I finally solved it. The problem was that I used some View flags to achieve the fullscreen mode in the respective Fragment. Therefore I removed following function in this Fragment:
private fun hideSystemUiFullScreen() {
exoplayer_videoview_container!!.systemUiVisibility = (View.SYSTEM_UI_FLAG_LOW_PROFILE
or View.SYSTEM_UI_FLAG_FULLSCREEN
or View.SYSTEM_UI_FLAG_LAYOUT_STABLE
or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION)
}
I don't changed my onResume and onStop method. So the issue was only the use of the View flags to get fullscreen mode.

How to swipe through activities with labels?

How can I add this labels with arrow below a toolbar?
By that I want to make a transition - with the help of an animation - from one activity to the other.
Thanks in advance!

You can create a custom toolbar. First create your toolbar_layout.xml and place whatever you want (including your label and arrows) into that layout. Then add the following to your activity_layout.xml:
<include
android:id="#+id/toolbar"
layout="#layout/toolbar_layout"
android:layout_height="wrap_content"
android:layout_width="match_parent"
/>
And finally add the following to your activity class:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

Why ActionBar is Missing(Android) and how to add back button?

Hello to Stack Overflow community.
I have included the AppCompactActivity in my class but, the action bar still not showing in my app. And I also want to add back button at my action bar.
public class infoAplikasi extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.info);
...
}
How, to solve it and how to add the back button to main? Thanks.

Using an AppCompatActivity means that you need to add a toolbar view in your R.layout.info to enable you to use an actionbar within your activity.
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/tool_bar"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="?attr/colorPrimary">
and setting the toolbar to the activity is just calling the setSupportActionBar(toolbar) where you set the toolbar view in the parameter
Go here for more tutorial about adding a toolbar
and for the backbutton don't attach a navigation drawer to the toolbar.

Android Toolbar - How to implement Spinner for navigation mode?

What is currently the correct way to implement the View Control (No. 2 from the below screenshot taken from Android's design guide):
I found this example but when I tried to replicate it, I noticed that methods like:
actionBar.setNavigationMode() are already deprecated.
So how should I implement it? I thought at first that it's a Spinner but I see apparently that it's not exactly the same
and can I still use ActionBar or should I better move to use Toolbar (yes, I am confused...)

As you rightly said, the setNavigationMode() method is now considered passé. To get the spinner in API 21, you need to use the Toolbar in this way:
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_actionbar"
android:layout_height="?attr/actionBarSize"
android:layout_width="match_parent"
android:background="?attr/colorPrimary">
<Spinner
android:id="#+id/spinner_toolbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</android.support.v7.widget.Toolbar
Add the above code to your Activity's layout. To set up the Toolbar in this Activity, you need to do this:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_layout);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
setSupportActionBar(toolbar);
}
Try this. This will work.

Toolbar - add the up button

I am trying to use the Toolbar instead of the ActionBar, but I can't figure out how to add the up button to return to the previous activity.
I couldn't find any method that could relate to it.
How do I add the up button?

I guess what you are looking for is something like this:
Toolbar toolbar = (Toolbar) findViewById(R.id.app_bar_detail);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
Or in case of using in Fragment:
Toolbar toolbar = (Toolbar) view.findViewById(R.id.app_bar_detail);
((ActionBarActivity) getActivity()).setSupportActionBar(toolbar);
((ActionBarActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
This will show up your Action Bar inside of your toolbar, but don't worry everything will fit together well. The last you have to do if you dont want any shadow under your action bar or any background of it is change your theme in vaules/styles.xml.
<style name="AppThmeme.Base" parent="Theme.AppCompat.NoActionBar">

If you want to do this in XML, you can use...
<android.support.v7.widget.Toolbar
app:navigationIcon="?homeAsUpIndicator"
...

If you're wondering why clicking on up button doesn't work with fragments, you need to set up a navigation listener as well, not sure why Google hasn't enabled it by default:
protected fun setupToolbar(toolbar: Toolbar) {
(activity as AppCompatActivity).run {
setSupportActionBar(toolbar)
supportActionBar?.setDisplayHomeAsUpEnabled(true)
toolbar.setNavigationOnClickListener { onBackPressed() }
}
}

In case when previous activity is always same for a given activity then up/back button can be achieved with the help of parentActivityName attribute. It can be mentioned in AndroidManifest.xml file as shown below:
<activity android:name=".DetailActivity" android:parentActivityName=".MainActivity">
<meta-data android:name="android.support.PARENT_ACTIVITY"
android:value=".MainActivity" />
</activity>
Let's say DetailActivity was opened from MainActivity. So when you are on DetailActivity then tool bar will automatically show a left pointing arrow (Refer screenshot):
When we click on left pointing arrow then MainActivity gets displayed.

Calling getSupportActionBar().setHomeButtonEnabled(true); should still work I think, as long as you have already called setSupportActionBar(toolbar);

You can add your own 'up' button in toolbar, after all it is just a ViewGroup.
You can customize toolbar as much as you want, in your toolbar.xml, or wherever you have defined android.support.v7.widget.Toolbar in your layout add your 'up' button like given below :
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/toolbar"
android:minHeight="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"
android:background="#drawable/color_toolbar"
android:layout_width="match_parent">
<ImageButton
android:id="#+id/upButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="uphandler"
android:src="#drawable/backbutton"
android:layout_gravity="end"/>
</android.support.v7.widget.Toolbar>
Now, define uphandler function in your activity to listen to this up button :
public void uphandler(View v){
this.finish(); // This will kill current activity, and if previous activity is still opened in background, it will come in front.
}

You have to add these line back button show automatically
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
on back, button click automatically back to activity
#Override
public boolean onSupportNavigateUp() {
onBackPressed();
return true;
}

if you are using navigation component, then adding up button in fragment would be like this:
in your fragment.xml
<androidx.constraintlayout.widget.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=".presentation.recipeitem.RecipeDetailsFragment">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_constraintTop_toTopOf="parent"
android:elevation="4dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
/>
.
.
then in your fragment you would do this
inside onViewCreated(..)
val navController = findNavController()
val appBarConfiguration = AppBarConfiguration(navController.graph)
viewBinding.toolbar.setupWithNavController(navController, appBarConfiguration)
if you need to add title then use this in onResume
viewBinding.toolbar.title = "my title"

if you are using newer version of android studio:
first declare toolbar of androidx not android
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorAccent"
app:popupTheme="#style/Theme.Sunshine.PopupOverlay" />
second, get a reference to the toolbar in Activity.java and use following code;
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar ab= getSupportActionBar();
ab.setDisplayHomeAsUpEnabled(true);

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