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How to make SwipeRefreshLayout work when the RecyclerView is empty

I noticed the SwipeRefreshLayout works when my RecyclerView is filled with data but not when the RecyclerView is empty. Is there a way to override this behavior?
My app fetches some data from the server and populates the RecyclerView. So for example, if the user has forgotten to turn on their internet but started my app, I want them to be able to turn it on and swipe up to refresh instead of going back and starting the activity again.
Here's is my activity's xml. I have removed some code to make this less verbose. I had one more button outside of the SwipeRefreshLayout and I have also removed my constraints.
<?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=".BreakfastActivity"
android:orientation="vertical">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/b_swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="0dp">
<android.support.v7.widget.RecyclerView
android:id="#+id/rv_breakfast"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.v4.widget.SwipeRefreshLayout>
</android.support.constraint.ConstraintLayout>
And this is the .java file:
public class BreakfastActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener {
// to display the menu
RecyclerView rv_breakfast;
RecyclerView.Adapter my_adapter;
// the actual menu
ArrayList<Menu> menu;
private SwipeRefreshLayout swipeRefreshLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_breakfast);
rv_breakfast = findViewById(R.id.rv_breakfast);
swipeRefreshLayout = findViewById(R.id.b_swipe_refresh_layout);
swipeRefreshLayout.setRefreshing(true);
swipeRefreshLayout.setOnRefreshListener(this);
rv_breakfast.setLayoutManager(new LinearLayoutManager(this));
new GetMenu(this).execute();
}
#Override
public void onRefresh() {
new GetMenu(this).execute();
}
static class GetMenu extends GetMenuBase {
WeakReference<BreakfastActivity> context;
GetMenu(BreakfastActivity b) {
context = new WeakReference<>(b);
meal_type = "breakfast";
b.swipeRefreshLayout.setRefreshing(true);
}
#Override
protected void onPostExecute(JSONObject parent) {
// process the output of the server side script script
b.swipeRefreshLayout.setRefreshing(false);
}
}
The java file is again devoid of some code not concerning the question. GetMenuBase extends an AsyncTask and implements doInBackground() and makes a call to the server and returns the JSON output.

The problem is that when your RecyclerView is empty then your height will be 0dp because you've set the height to wrap_content and 0dp to your SwipeRefreshLayout.
Change the height of your SwipeRefreshLayout or your RecyclerView to match_parent.

Using BottomBar prevents fragments from opening?

I am using the Support Library to add a bottom bar similar to the material design one. The bottom bar works great but it seems that if I have the bar displayed, if I try to open any fragment from my custom adapter, the fragment does not open...or maybe it opens behind my main layout? I have no idea how to figure this out. Below is my code.
I've read more posts on SO and around the web and I think this is related to the fragment being properly loaded but below or next to the bottom bar...and that is why it isn't visible? Why does this happen? Is it because the bottom bar has a LinearLayout? I defined it as a menu so I'm not sure if I can control it being a LinearLayout....
Setting up the bottom bar, this method is called from the onCreate of my activity:
public void setupBottomToolbar(Bundle savedInstanceState) {
mBottomBar = BottomBar.attach(MainActivity.this, savedInstanceState);
mBottomBar.setItems(R.menu.bottombar_menu);
mBottomBar.setOnMenuTabClickListener(new OnMenuTabClickListener() {
#Override
public void onMenuTabSelected(#IdRes int menuItemId) {
if (menuItemId == R.id.toolbar_jobs) {
} else if (menuItemId == R.id.toolbar_messages) {
} else if (menuItemId == R.id.toolbar_recentJobs) {
} else if (menuItemId == R.id.toolbar_employerPools) {
}
}
#Override
public void onMenuTabReSelected(#IdRes int menuItemId) {
if (menuItemId == R.id.toolbar_jobs) {
// The user reselected item number one, scroll your content to top.
} else if (menuItemId == R.id.toolbar_messages) {
} else if (menuItemId == R.id.toolbar_employerPools) {
} else if (menuItemId == R.id.toolbar_recentJobs) {
}
}
});
// Setting colors for different tabs when there's more than three of them.
// You can set colors for tabs in three different ways as shown below.
mBottomBar.getBar().setBackgroundColor(getResources().getColor(R.color.laborswipe_darkgray));
mBottomBar.setActiveTabColor(getResources().getColor(R.color.laborswipe_lightgray));
// Make a Badge for the second tab, with red background color and a value of "13".
BottomBarBadge unreadMessages = mBottomBar.makeBadgeForTabAt(1, getResources().getColor(R.color.laborswipe_orange), 5);
// Control the badge's visibility
unreadMessages.show();
//unreadMessages.hide();
// Change the displayed count for this badge.
//unreadMessages.setCount(4);
// Change the show / hide animation duration.
unreadMessages.setAnimationDuration(200);
// If you want the badge be shown always after unselecting the tab that contains it.
unreadMessages.setAutoShowAfterUnSelection(true);
// If you don't want this badge to be hidden after selecting the tab contains it.
unreadMessages.setAutoShowAfterUnSelection(false);
}
In my adapter, I am trying to open the fragment when you click a button, like this:
holder.desc.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context, "Open Description", Toast.LENGTH_SHORT).show();
JobDescFragment firstFragment = new JobDescFragment();
((MainActivity)context).getSupportFragmentManager().beginTransaction()
.add(R.id.fragment_container, firstFragment).commit();
}
});
If I comment out the call to setupBottomToolbar() in my onCreate of the activity, the fragment opens up fine...but that means I don't have the bottom bar...
What am I missing? There has to be a way to use the bottom bar and also open a fragment?
Thanks!
EDIT:
Here is the top part of my activity.
public class MainActivity extends AppCompatActivity {
private ArrayList<String> swipecardsList;
private ArrayList<Job> jobList = new ArrayList<Job>();
private JobAdapter arrayAdapter; //arrayadapter
private BottomBar mBottomBar;
SharedPreferences settings;
#InjectView(R.id.frame) SwipeFlingAdapterView flingContainer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Remove title bar
//this.requestWindowFeature(Window.FEATURE_NO_TITLE);
//color the notification bar with our company colors
Window window = this.getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
window.setStatusBarColor(this.getResources().getColor(R.color.laborswipe_notificationbar));
//remove title from action bar and add the logo to the top left of the action bar
setupTopToolbar();
setContentView(R.layout.activity_main);
ButterKnife.inject(this);
//set up the bottom toolbar using the roughike library to mimic android material design
setupBottomToolbar(savedInstanceState);
My adapter:
public class JobAdapter extends ArrayAdapter<Job> {
private final Context context;
private final ArrayList<Job> jobs;
private final int layoutResourceId;
private final SwipeFlingAdapterView flingContainer;
private boolean isExpanded = false;
public JobAdapter(Context context, int layoutResourceId, ArrayList<Job> jobs, SwipeFlingAdapterView flingContainer) {
super(context, layoutResourceId, jobs);
this.context = context;
this.jobs = jobs;
this.layoutResourceId = layoutResourceId;
this.flingContainer = flingContainer;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
final ViewHolder holder;
String pay, hrs;
final Bundle fragmentParams = new Bundle();
LayoutInflater inflater = LayoutInflater.from(context);
if (view == null) {
view = inflater.inflate(layoutResourceId, parent, false);
holder = new ViewHolder();
holder.title = (TextView)view.findViewById(R.id.tv_jobTitle);
holder.desc = (TextView) view.findViewById(R.id.tv_JobDesc);
view.setTag(holder);
} else {
holder = (ViewHolder)view.getTag();
}
Job j = jobs.get(position);
holder.title.setText(j.getJobTitle());
holder.desc.setText(j.getDescription());
//when user clicks apply, swipe the card right
holder.apply.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Open up a fragment to display the entire job description
Toast.makeText(context, "Applied", Toast.LENGTH_SHORT).show();
flingContainer.getTopCardListener().selectRight();
}
});
//when user clicks dismiss, swipe the card left
holder.dismiss.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Open up a fragment to display the entire job description
Toast.makeText(context, "Dismissed", Toast.LENGTH_SHORT).show();
flingContainer.getTopCardListener().selectLeft();
}
});
//on click event listener for the job description field - open larger window to read description
holder.desc.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//Toast.makeText(context, "Open Description", Toast.LENGTH_SHORT).show();
JobDescFragment firstFragment = new JobDescFragment();
Fragment frag = new Fragment();
frag = firstFragment.newJobDescFrag(j.getDescription());
((MainActivity) context).getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, frag)
.addToBackStack("JobDesc").commit();
}
});
return view;
}
public class ViewHolder
{
TextView title;
TextView payrate;
TextView dateRange;
TextView workinghrs;
TextView location;
TextView companyname;
TextView desc;
TextView experience;
TextView equipment;
Button apply, dismiss, expand;
}
}
activity_main.xml:
<merge
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">
<com.lorentzos.flingswipe.SwipeFlingAdapterView
android:id="#+id/frame"
android:background="#color/laborswipe_lightgray"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:context=".MainActivity"
android:layout_gravity="top" />
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</merge>
Fragment Layout:
<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"
tools:context=".JobDescFragment">
<LinearLayout
android:id="#+id/outerDescriptionLayout"
android:layout_width="match_parent"
android:layout_height="400dp"
android:layout_gravity="center_horizontal|top"
android:orientation="vertical"
android:background="#drawable/swipecard_shadow"
android:gravity="top"
android:layout_marginLeft="5dp">
<LinearLayout
android:id="#+id/DescriptionLayout"
android:layout_width="match_parent"
android:layout_height="400dp"
android:layout_gravity="center_horizontal|top"
android:orientation="vertical"
android:weightSum="1"
android:gravity="top"
android:layout_marginTop="20dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:background="#00FF00"
android:clickable="true">
<TextView
android:layout_width="200dp"
android:layout_height="200dp"
android:text="Detailed Description:"
android:textColor="#000000"
android:id="#+id/tv_title" />
<TextView
android:layout_width="200dp"
android:layout_height="200dp"
android:text="THIS IS THE FULL DESCRIPTION"
android:textColor="#000000"
android:id="#+id/tv_fullDescription" />
</LinearLayout>
</LinearLayout>
</FrameLayout>
Logcat:
08-07 11:20:47.799 13896-13896/com.lorentzos.swipecards.example I/System.out: DEBUG: job desc fragment loaded!
08-07 11:20:47.855 13896-13941/com.lorentzos.swipecards.example W/EGL_emulation: eglSurfaceAttrib not implemented
08-07 11:20:47.855 13896-13941/com.lorentzos.swipecards.example W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xaaa7f880, error=EGL_SUCCESS
08-07 11:20:48.002 13896-13941/com.lorentzos.swipecards.example V/RenderScript: 0xa1408000 Launching thread(s), CPUs 2
08-07 11:20:49.798 13896-13941/com.lorentzos.swipecards.example E/Surface: getSlotFromBufferLocked: unknown buffer: 0xae433ca0
When I use the bottom bar (not working- no fragment opened but toast displayed):
When I don't use the bottom bar (workin-fragment opened, background is green):

try to link a pic of problem and without problem(no bottombar) and since you are using merge the layout hierarchy will be laid off according to your activity's viewgroup(linear,relative) constraints(we don't know what they are like).
as you said when there is no bottombar ,you fragment displays perfectly though when the bottombar it there ,problem stats ,as per your log in fragment indicating that your fragment is loading perfectly even though when bottombar is visible mean fragment is there but is not visible ,seems like your fragment didn't get the appropriate space to get displayed.
other solution can be adding bottom bar to your fragment instead of activity to avoid any overlapping ,like
mBottomBar.attach(findViewById(R.id.fragmentContainer), savedInstanceState);

OK, I think the solution for this should be simple, from what I can see in your code, you are attaching the BottomBar to your activity, I think this is the problem. If you were to read the readme.md in the roughike/BottomBar github page you'd find this
Why is it overlapping my Navigation Drawer?
All you need to do is instead of attaching the BottomBar to your Activity, attach it to the view that has your content. For example, if your fragments are in a ViewGroup that has the id fragmentContainer, you would do something like this:
mBottomBar.attach(findViewById(R.id.fragmentContainer), savedInstanceState);
So, since navigation drawer works with transition a fragment in and out of view with animation, the same thing is happening when you are adding a new fragment to your activity.
The Solution
From what I can see in your code, your fragment container id is this: fragment_container in your activity layout. So according to the documentation you'd just need to do attach your bottomBar to the fragment_container instead of MainActivity.this
mBottomBar.attach(findViewById(R.id.fragment_container), savedInstanceState);
If the above doesn't work try this
What you'd need to do is add an extra FrameLayout to hold your bottombar, which has a transparent background, but is on top of your fragment.
So change your main_activity layout to
<merge
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">
<com.lorentzos.flingswipe.SwipeFlingAdapterView
android:id="#+id/frame"
android:background="#color/laborswipe_lightgray"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:context=".MainActivity"
android:layout_gravity="top" />
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<FrameLayout
android:id="#+id/holder_bottombar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent"/>
</merge>
Now in the code instead of attaching the bottom bar to mainactivity, just attach it to the holder like so
mBottomBar.attach(findViewById(R.id.holder_bottombar), savedInstanceState);

Android ViewPager not Showing

I am trying to make a little app to try out some things for a bigger app I am developing. I want to add a viewpager that displays four images, I developed this viewpager alone and it worked, but when I tried to add it to my other app (with just a couple of buttons) with the tag, it does not show anything and I am really stuck in here. Is possible to add the Viewpager this way? Honestly I don't have that much experience in Java, I usually program only C and Assembler and I will be reaaally glad if you could help me.
This is the xml file with the button and the include:
<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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity"
android:weightSum="1">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Calculo Rapido"
android:id="#+id/btcr"
android:layout_gravity="center_vertical"
android:layout_weight="0.16"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Calculo Avanzado"
android:id="#+id/button"
android:layout_centerVertical="true"
android:layout_below="#+id/btcr" />
<include layout="#layout/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:translationZ="15dp" />
Now, the MainActivity, which holds the button activity because I kept the Viewpager inside an Activity that's linked with the viewpager original layout
Button siguiente;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
siguiente = (Button)findViewById(R.id.btcr);
siguiente.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent siguiente = new Intent(MainActivity.this, Main2Activity.class);
startActivity(siguiente);
}
});
}
And lastly, the code for the mainpager main activity, this uses a CustomPagerAdapter saved in another java class. As I told before, this viewpager does work alone, but when I try to implement it here, with the /include tag, it doesn't show anything.
public class MainActivity extends Activity {
CustomPagerAdapter mCustomPagerAdapter;
ViewPager mViewPager;
private static int currentPage = 0;
private static int NUM_PAGES = 0;
Button siguiente;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// == Setting up the ViewPager ==
mCustomPagerAdapter = new CustomPagerAdapter(this);
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mCustomPagerAdapter);
final Handler handler = new Handler();
final Runnable Update = new Runnable() {
public void run() {
if (currentPage == NUM_PAGES) {
currentPage = 0;
}
mViewPager.setCurrentItem(currentPage++);
if (currentPage == 5) {
currentPage = 0;
mViewPager.setCurrentItem(currentPage++, false);
}
}
};
Timer swipeTimer = new Timer();
swipeTimer.schedule(new TimerTask() {
#Override
public void run() {
handler.post(Update);
}
}, 2000, 2000);
}
Sorry if it is too long guys, but I am a little frustrated, I have tried a lot of things but it isn't working yet. Either the buttons do their thing and the ViewPager doesn't work or the ViewPager works but the buttons are dead.
I will reaaally aprecciate your help :)

create a new xml file inside layout folder and name it secondactivity.xml
and put this code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/pager">
</android.support.v4.view.ViewPager>
</LinearLayout>
Now inside your Main2Activity.class
change
setContentView(R.layout.activity_main);
to
setContentView(R.layout.secondactivity);
And remove the include from your previous xml

Turns out, what I needed was just the simple solution. I had to put the viewpager on my activity's layout file as another object, just configuring its size and position. And then, on my onCreate I pasted the code of my functioning ViewPager. Quite simple, without requiring another layouts :)

Issues when relative layout implement swipe-to-refresh layout

I'm currently attempting to implement swipe-to-refresh layout into relative layout, but it is extremely insensitive and unstable. When I pull down the screen, it usually either doesn't refresh or it refreshes without progress bar.
<android.support.v4.widget.SwipeRefreshLayout
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"
tools:context="com.example.miaor.tutorialweather.MainActivity"
android:id="#+id/refreshLayout"
android:background="#fe970b">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
</RelativeLayout>
public class MainActivity extends AppCompatActivity{
public static final String TAG = MainActivity.class.getSimpleName();
#BindView(R.id.TimeString) TextView mTimeLabel;
#BindView(R.id.TemperatureLabel) TextView mTemperatureLabel;
#BindView(R.id.HumidityValue) TextView mHumidityValue;
#BindView(R.id.rainingChanceValue) TextView mChance;
#BindView(R.id.weatherIcon) ImageView mWeatherIcon;
#BindView(R.id.SummaryText) TextView mSummaryText;
#BindView(R.id.refreshLayout) SwipeRefreshLayout mSwipeRefreshLayout;
///why do we make a new variable of CurrentWeather
private CurrentWeather mCurrentWeather;
private String apiKey = "6b9448b8e21c2abe2fb623b25554a77c";
private double latitude = 31.230708;
private double longitude = 121.472916;
private String forecastUrl = "https://api.forecast.io/forecast/" + apiKey +
"/" + latitude + "," + longitude;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
///implement swipe-to-refresh feature
mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
Log.i(TAG, "onRefresh is working");
getForecast();
}
});
getForecast();
Log.d(TAG, "Main UI code is running!");
}

You can't implement SwipeToRefreshLayout with RelativeLayout as its child. You need to have a scrollable view as its only child. e.g. Listview, RecyclerView, ScrollView. That is the reason why it is not working as expected for you.

That is not the right position.
You need type like this:
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/your_id"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
YOUR RELATIVE LAYOUT HERE
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>

Your code looks fine, it's weird that it's not working correctly... Maybe it's because of the ButterKnife library? I don't think that's the problem, but it will be worth the shot to get views manually to see if that's the problem
Then, if you need the loading animation to appear/hide you can use mSwipeRefreshLayout.setRefreshing(boolean);
For example in my app I attach the listener first (as you did in your example) and then I use the following code to show the loading animation while I fetch the data.
// Show loading while fetching the first set of data
mainSwipeRefreshLayout.post(new Runnable() {
#Override
public void run() {
mainSwipeRefreshLayout.setRefreshing(true);
}
});
In my fetchData() method I use the following line to hide the animation again when it finishes fetching the data.
// On load complete stop refresh animation
mainSwipeRefreshLayout.setRefreshing(false);
Hope this helps!
Andres.

How to make an ImageView overlay another View and hide it after a certain period of time?

I'm making a very simple Andriod app and I was wondering if I could get some help with my app.
I would like to show an ImageView over the full ListView (including the action bar) for 3 seconds, and then remove the ImageView (or hide it, anything), to go back to the list view.
How can this be done? I have tried a few things but it either breaks my code or doesn't show anything at all.
Thanks in advance everyone - let me know if you need any further explanation.
EDIT: As per the question below, I'd like the ImageView to be shown as soon as the ListView is shown, for 3 seconds, then disappear.

Allright. What you want is actually quite easy.
Simply create a RelativeLayout that contains a ListView and an ImageView above it.
Then inside your onCreate(...) method, you use a Handler and set the Visibility of the ImageView to GONE after 3 seconds.
Here is the layout.xml file:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
</ListView>
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:scaleType="fitXY"
android:src="#drawable/your_image" />
</RelativeLayout>
And inside the onCreate(...) method:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.yourlayout);
final ImageView iv = (ImageView) findViewById(R.id.imageView1);
Handler h = new Handler();
h.postDelayed(new Runnable() {
#Override
public void run() {
// EITHER HIDE IT IMMEDIATELY
iv.setVisibility(View.GONE);
// OR HIDE IT USING ANIMATION
hideImageAnimated(iv);
// DONT use both lines at the same time :)
}
}, 3000); // 3 seconds
}
In order to make things a bit smoother, you could use an AlphaAnimation on your ImageView:
public void hideImageAnimated(final ImageView iv) {
Animation alpha = new AlphaAnimation(1.0f, 0.0f);
alpha.setDuration(1000); // whatever duration you want
// add AnimationListener
alpha.setAnimationListener(new AnimationListener(){
#Override
public void onAnimationEnd(Animation arg0) {
iv.setVisibility(View.GONE);
}
#Override
public void onAnimationRepeat(Animation arg0) { }
#Override
public void onAnimationStart(Animation arg0) { }
});
iv.startAnimation(alpha);
}