Ex:
1. Tilting the phone to the left about 12* -> my application will show 12*.
Tilting the phone to the right about 15* -> my application will show 15*
How to do that on Xamarin Android(Calulate xyz)
You can follow this work around to create your application . Demolink
The following is sample code.
public class MainActivity : Activity, ISensorEventListener
{
private SensorManager mSensorManager;
private Sensor mOrientation;
private TextView _sensorTextView;
static readonly object _syncLock = new object();
public void OnAccuracyChanged(Sensor sensor, [GeneratedEnum] SensorStatus accuracy)
{
// do
}
public void OnSensorChanged(SensorEvent e)
{
lock (_syncLock)
{
_sensorTextView.Text = string.Format("x={0:f}, y={1:f}, y={2:f}", e.Values[0], e.Values[1], e.Values[2]);
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Main);
mSensorManager = (SensorManager)GetSystemService(Context.SensorService);
mOrientation = mSensorManager.GetDefaultSensor(SensorType.Orientation, true);
_sensorTextView = FindViewById<TextView>(Resource.Id.accelerometer_text);
}
protected override void OnResume()
{
base.OnResume();
mSensorManager.RegisterListener(this, mOrientation, SensorDelay.Normal);
}
protected override void OnPause()
{
base.OnPause();
mSensorManager.UnregisterListener(this);
}
}
Related
I'm trying to implement a temperature sensor on a virtual Pixel 4a, Ambient Temp sensor is included according to list of sensors.
When I run the program, the textView continues to print "Hello world!" instead of what setText in the onSensorChanged method provides.
Here is my code, any help will be amazing:
public class MainActivity extends AppCompatActivity implements SensorEventListener {
private SensorManager sensorManager;
private TextView textView;
private Sensor tempSensor;
private Boolean tempSensorAvailable;
private int activityCode = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (ContextCompat.checkSelfPermission(MainActivity.this,
Manifest.permission.ACTIVITY_RECOGNITION)
!= PackageManager.PERMISSION_GRANTED) {
requestActivityPermission();
}
textView = findViewById(R.id.textView);
sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
if (sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE) != null) {
tempSensor = sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE);
tempSensorAvailable = true;
} else {
textView.setText("Temperature Sensor is not available.");
tempSensorAvailable = false;
}
}
#Override
public void onSensorChanged(SensorEvent sensorEvent) {
textView.setText(sensorEvent.values[0] + " Celsius");
}
#Override
public void onAccuracyChanged(Sensor sensor, int i) {
}
#Override
protected void onResume() {
super.onResume();
if (tempSensorAvailable) {
sensorManager.registerListener(this, tempSensor,
SensorManager.SENSOR_DELAY_NORMAL);
}
}
#Override
protected void onPause() {
super.onPause();
if (tempSensorAvailable) {
sensorManager.unregisterListener(this);
}
}
public void requestActivityPermission() {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.
ACTIVITY_RECOGNITION)) {
new AlertDialog.Builder(this)
.setTitle("Permission needed")
.setMessage("Permission is needed to run this app.")
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.ACTIVITY_RECOGNITION},
activityCode);
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
})
.create().show();
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACTIVITY_RECOGNITION},
activityCode);
}
}
You mus call SensroManager.registerListener():
https://developer.android.com/reference/android/hardware/SensorManager#registerListener(android.hardware.SensorEventListener,%20android.hardware.Sensor,%20int)
I have a android project running smoothly, it uses MVVMCross at its core.
The problem came when I was asked manage the app protection policies with Intune.
Now Intune is forcing me to use their managed activity and all other managed namespaces provided by Intune SDK.
In that case, how I can proceed with it?
I tried changing activities base class to Intune's one, in hope to use general things provided by Mvvmcross, such as IOC, dependency injections.
I customised App startup as Intune wants that means there will not be any setup/app.cs class calls involvement.
So I launch Splash activity -> and it launches MainActivity, in MainActivity I am manually injecting all the Dependencies which I require.
Because all these syntaxes are throwing exception under Intune managed activities
example: Mvx.RegisterType<IDeviceInformation, DeviceInformation>();
Above throws exception.
How do I proceed with this migration keeping MVVMcross basic functionality intact?
There is a couple of solutions to that matter that I can think of.
If you only need the DI you can add another DI manager package and handle it from there which will be simpler than configuring Mvx to do that only.
If you need other capabilities of Mvx then you will have to do what Mvx does in its base classes and implement them taking into consideration setting the appropiate interfaces to your base classes.
In Android, in order to get the Setup and Activities working you'll have to:
Register your setup in your android Application file as done here
this.RegisterSetupType<TMvxAndroidSetup>();
Implement your own base activity that takes into consideration the implementation of IMvxEventSourceActivity such as here and also the MvxActivity like here in order to have the events and the data context / viewmodel handling
[Register("mvvmcross.platforms.android.views.base.MvxEventSourceActivity")]
public abstract class MvxEventSourceActivity
: Activity, IMvxEventSourceActivity
{
protected MvxEventSourceActivity()
{
}
protected MvxEventSourceActivity(IntPtr javaReference, JniHandleOwnership transfer)
: base(javaReference, transfer)
{
}
protected override void OnCreate(Bundle bundle)
{
CreateWillBeCalled.Raise(this, bundle);
base.OnCreate(bundle);
CreateCalled.Raise(this, bundle);
}
protected override void OnDestroy()
{
DestroyCalled.Raise(this);
base.OnDestroy();
}
protected override void OnNewIntent(Intent intent)
{
base.OnNewIntent(intent);
NewIntentCalled.Raise(this, intent);
}
protected override void OnResume()
{
base.OnResume();
ResumeCalled.Raise(this);
}
protected override void OnPause()
{
PauseCalled.Raise(this);
base.OnPause();
}
protected override void OnStart()
{
base.OnStart();
StartCalled.Raise(this);
}
protected override void OnRestart()
{
base.OnRestart();
RestartCalled.Raise(this);
}
protected override void OnStop()
{
StopCalled.Raise(this);
base.OnStop();
}
public override void StartActivityForResult(Intent intent, int requestCode)
{
StartActivityForResultCalled.Raise(this, new MvxStartActivityForResultParameters(intent, requestCode));
base.StartActivityForResult(intent, requestCode);
}
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
ActivityResultCalled.Raise(this, new MvxActivityResultParameters(requestCode, resultCode, data));
base.OnActivityResult(requestCode, resultCode, data);
}
protected override void OnSaveInstanceState(Bundle outState)
{
SaveInstanceStateCalled.Raise(this, outState);
base.OnSaveInstanceState(outState);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
DisposeCalled.Raise(this);
}
base.Dispose(disposing);
}
public event EventHandler DisposeCalled;
public event EventHandler<MvxValueEventArgs<Bundle>> CreateWillBeCalled;
public event EventHandler<MvxValueEventArgs<Bundle>> CreateCalled;
public event EventHandler DestroyCalled;
public event EventHandler<MvxValueEventArgs<Intent>> NewIntentCalled;
public event EventHandler ResumeCalled;
public event EventHandler PauseCalled;
public event EventHandler StartCalled;
public event EventHandler RestartCalled;
public event EventHandler StopCalled;
public event EventHandler<MvxValueEventArgs<Bundle>> SaveInstanceStateCalled;
public event EventHandler<MvxValueEventArgs<MvxStartActivityForResultParameters>> StartActivityForResultCalled;
public event EventHandler<MvxValueEventArgs<MvxActivityResultParameters>> ActivityResultCalled;
}
[Register("mvvmcross.platforms.android.views.MvxActivity")]
public abstract class MvxActivity
: MvxEventSourceActivity
, IMvxAndroidView
{
protected View _view;
protected MvxActivity(IntPtr javaReference, JniHandleOwnership transfer)
: base(javaReference, transfer)
{
}
protected MvxActivity()
{
BindingContext = new MvxAndroidBindingContext(this, this);
this.AddEventListeners();
}
public object DataContext
{
get { return BindingContext.DataContext; }
set { BindingContext.DataContext = value; }
}
public IMvxViewModel ViewModel
{
get
{
return DataContext as IMvxViewModel;
}
set
{
DataContext = value;
OnViewModelSet();
}
}
public void MvxInternalStartActivityForResult(Intent intent, int requestCode)
{
StartActivityForResult(intent, requestCode);
}
public IMvxBindingContext BindingContext { get; set; }
public override void SetContentView(int layoutResId)
{
_view = this.BindingInflate(layoutResId, null);
SetContentView(_view);
}
protected virtual void OnViewModelSet()
{
}
protected override void AttachBaseContext(Context #base)
{
if (this is IMvxSetupMonitor)
{
// Do not attach our inflater to splash screens.
base.AttachBaseContext(#base);
return;
}
base.AttachBaseContext(MvxContextWrapper.Wrap(#base, this));
}
private readonly List<WeakReference<Fragment>> _fragList = new List<WeakReference<Fragment>>();
public override void OnAttachFragment(Fragment fragment)
{
base.OnAttachFragment(fragment);
_fragList.Add(new WeakReference<Fragment>(fragment));
}
public List<Fragment> Fragments
{
get
{
var fragments = new List<Fragment>();
foreach (var weakReference in _fragList)
{
if (weakReference.TryGetTarget(out Fragment f))
{
if (f.IsVisible)
fragments.Add(f);
}
}
return fragments;
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
ViewModel?.ViewCreated();
}
protected override void OnDestroy()
{
base.OnDestroy();
ViewModel?.ViewDestroy(IsFinishing);
}
protected override void OnStart()
{
base.OnStart();
ViewModel?.ViewAppearing();
}
protected override void OnResume()
{
base.OnResume();
ViewModel?.ViewAppeared();
}
protected override void OnPause()
{
base.OnPause();
ViewModel?.ViewDisappearing();
}
protected override void OnStop()
{
base.OnStop();
ViewModel?.ViewDisappeared();
}
}
public abstract class MvxActivity<TViewModel>
: MvxActivity
, IMvxAndroidView<TViewModel> where TViewModel : class, IMvxViewModel
{
public new TViewModel ViewModel
{
get { return (TViewModel)base.ViewModel; }
set { base.ViewModel = value; }
}
}
Also you'll have to implement your own splash activity like here which implements the IMvxSetupMonitor and is the one who ends up calling the setup here by calling MvxAndroidSetupSingleton.EnsureSingletonAvailable(ApplicationContext); and initializing a monitor.
[Register("mvvmcross.platforms.android.views.MvxSplashScreenActivity")]
public abstract class MvxSplashScreenActivity
: MvxActivity, IMvxSetupMonitor
{
protected const int NoContent = 0;
private readonly int _resourceId;
private Bundle _bundle;
public new MvxNullViewModel ViewModel
{
get { return base.ViewModel as MvxNullViewModel; }
set { base.ViewModel = value; }
}
protected MvxSplashScreenActivity(int resourceId = NoContent)
{
RegisterSetup();
_resourceId = resourceId;
}
protected MvxSplashScreenActivity(IntPtr javaReference, JniHandleOwnership transfer)
: base(javaReference, transfer)
{
}
protected virtual void RequestWindowFeatures()
{
RequestWindowFeature(WindowFeatures.NoTitle);
}
protected override void OnCreate(Bundle bundle)
{
RequestWindowFeatures();
_bundle = bundle;
var setup = MvxAndroidSetupSingleton.EnsureSingletonAvailable(ApplicationContext);
setup.InitializeAndMonitor(this);
base.OnCreate(bundle);
if (_resourceId != NoContent)
{
// Set our view from the "splash" layout resource
// Be careful to use non-binding inflation
var content = LayoutInflater.Inflate(_resourceId, null);
SetContentView(content);
}
}
private bool _isResumed;
protected override void OnResume()
{
base.OnResume();
_isResumed = true;
var setup = MvxAndroidSetupSingleton.EnsureSingletonAvailable(ApplicationContext);
setup.InitializeAndMonitor(this);
}
protected override void OnPause()
{
_isResumed = false;
var setup = MvxAndroidSetupSingleton.EnsureSingletonAvailable(ApplicationContext);
setup.CancelMonitor(this);
base.OnPause();
}
public virtual async Task InitializationComplete()
{
if (!_isResumed)
return;
await RunAppStartAsync(_bundle);
}
protected virtual async Task RunAppStartAsync(Bundle bundle)
{
if (Mvx.IoCProvider.TryResolve(out IMvxAppStart startup))
{
if(!startup.IsStarted)
{
await startup.StartAsync(GetAppStartHint(bundle));
}
else
{
Finish();
}
}
}
protected virtual object GetAppStartHint(object hint = null)
{
return hint;
}
protected virtual void RegisterSetup()
{
}
}
public abstract class MvxSplashScreenActivity<TMvxAndroidSetup, TApplication> : MvxSplashScreenActivity
where TMvxAndroidSetup : MvxAndroidSetup<TApplication>, new()
where TApplication : class, IMvxApplication, new()
{
protected MvxSplashScreenActivity(int resourceId = NoContent) : base(resourceId)
{
}
protected override void RegisterSetup()
{
this.RegisterSetupType<TMvxAndroidSetup>();
}
}
This will cover the basics I think.
Hope it helps you to get you to the right direction
The SeekBar widget is an interactive slider that allows the user to select one value from a range of values. As the user moves the slider left or right, the value of the SeekBar will change
public int getProgressPercentage(int currentDuration, int totalDuration)
{
int percentage;
int currentSeconds = (int)(currentDuration / 1000);
int totalSeconds = (int)(totalDuration / 1000);
//calculating percentage
percentage = (((int)currentSeconds) / totalSeconds) * 100;
return percentage;
}
public void UpdatedTimerTask()
{
//Displaying time
//txtCurrentTimer.Text = utils.miliSecondsTotimer (player.CurrentPosition);
//txtTotalTimer.Text = utils.miliSecondsTotimer (player.Duration);
//Updating progress bar(seekbar)
int progress=(int)(utils.getProgressPercentage(player.CurrentPosition,player.Duration));
seekBar.Progress = progress;
}
void SeekBar_ProgressChanged (object sender, SeekBar.ProgressChangedEventArgs e)
{
UpdatedTimerTask ();
}
public void StartMedia(string url_string)
{
player = new MediaPlayer ();
seekBar.Progress = 0;
seekBar.Max = 100;
player.Reset ();
player.SetAudioStreamType (Stream.Music);
player.SetDataSource(url_string);
player.Prepare();
player.Start ();
imgPlayorPause.SetImageResource (Resource.Drawable.ic_pause_black_36dp);
UpdatedTimerTask ();
}
seekBar.SetOnSeekBarChangeListener (this); has some invalid argument.
SeekBar won't run when media player are playing.
You have two options:
SetOnSeekBarChangeListener()
If you want to use SetOnSeekBarChangeListener you have to implement IOnSeekBarChangeListener in the class of this (usually your activity. The disadvantage of this is, that you can only have one event listener.
[Activity]
public class MyActivity : Activity, SeekBar.IOnSeekBarChangeListener
{
protected override void OnCreate(Bundle bundle)
{
// ...
seekbar.SetOnSeekBarChangeListener(this);
}
public void OnProgressChanged(SeekBar seekBar, int progress, bool fromUser)
{
// do some stuff
}
public void OnStartTrackingTouch(SeekBar seekBar)
{
}
public void OnStopTrackingTouch(SeekBar seekBar)
{
}
}
ProgressChanged Event
Xamarin maps Java methods that are called like SetXyzListener to the event called Xyz.
If you want to use ProgressChanged you have to register your handler with seekbar.ProgressChanged += SeekbarOnProgressChanged. The disadvantage of this is, that you have to ensure to remove the handler with seekbar.ProgressChanged -= SeekbarOnProgressChanged when you do not need the event anymore. You should do this in the counterpart of the lifecycle method where you have added the handler. In the following example I used OnResume and OnPause.
[Activity]
public class MyActivity : Activity
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// ...
}
protected override void OnResume()
{
base.OnResume();
seekbar.ProgressChanged += SeekbarOnProgressChanged;
}
protected override void OnPause()
{
seekbar.ProgressChanged -= SeekbarOnProgressChanged;
base.OnPause();
}
private void SeekbarOnProgressChanged(object sender, SeekBar.ProgressChangedEventArgs progressChangedEventArgs)
{
// do some stuff
}
}
I am adding my two separate android activities in one application, one of my activity having volley library but it gives me an exception that appcontroller(volley library) its an application not an activity please help me out
Ya, you have mention in your manifest file appcontroller class as Application. This solves the exception.
Main Acitivity:
public class MainActivity extends FragmentActivity implements OnTabChangeListener, OnPageChangeListener {
MyPageAdapter pageAdapter;
private ViewPager mViewPager;
private TabHost mTabHost;
private Button btn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
// Tab Initialization
initialiseTabHost();
// Fragments and ViewPager Initialization
List<Fragment> fragments = getFragments();
pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
mViewPager.setAdapter(pageAdapter);
mViewPager.setOnPageChangeListener(MainActivity.this);
}
// Method to add a TabHost
private static void AddTab(MainActivity activity, TabHost tabHost, TabHost.TabSpec tabSpec,String message,int picture,Context x)
{
tabSpec.setContent(new MyTabFactory(activity));
View tabIndicator = LayoutInflater.from(x).inflate(R.layout.tab_indicator, tabHost.getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(message);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setBackgroundDrawable(x.getResources().getDrawable(picture));
icon.setScaleType(ImageView.ScaleType.FIT_CENTER);
tabSpec.setIndicator(tabIndicator);
tabHost.addTab(tabSpec);
}
// Manages the Tab changes, synchronizing it with Pages
public void onTabChanged(String tag) {
int pos = this.mTabHost.getCurrentTab();
this.mViewPager.setCurrentItem(pos);
for(int i=0;i<mTabHost.getTabWidget().getChildCount();i++)
{
mTabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.BLUE);
//mTabHost.getTabWidget().setDividerDrawable(R.Color.transperant);
}
mTabHost.getTabWidget().getChildAt(mTabHost.getCurrentTab()).setBackgroundColor(Color.CYAN);// selected
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
public void destroyItem(View collection, int position, Object view){
((ViewPager) collection).removeView((ImageView) view);
}
// Manages the Page changes, synchronizing it with Tabs
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
int pos = this.mViewPager.getCurrentItem();
this.mTabHost.setCurrentTab(pos);
}
#Override
public void onPageSelected(int arg0) {
}
private List<Fragment> getFragments(){
List<Fragment> fList = new ArrayList<Fragment>();
// TODO Put here your Fragments
NewSampleFragment f1 = NewSampleFragment.newInstance(getApplicationContext(),R.layout.newfragment_a);
MySampleFragment f2 = MySampleFragment.newInstance("Sample Fragment 2");
MySampleFragment f3 = MySampleFragment.newInstance("Sample Fragment 3");
MySampleFragment f4 = MySampleFragment.newInstance("Sample Fragment 4");
MySampleFragment f5 = MySampleFragment.newInstance("Sample Fragment 5");
fList.add(f1);
fList.add(f2);
fList.add(f3);
fList.add(f4);
fList.add(f5);
return fList;
}
// Tabs Creation
private void initialiseTabHost() {
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
// TODO Put here your Tabs
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab1").setIndicator("Tab1"),"Grocery",R.drawable.movies,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab2").setIndicator("Tab2"),"Crockery",R.drawable.artist,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab3"),"Foods",R.drawable.song,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab4"),"Drinks",R.drawable.shopping,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab5"),"Toys",R.drawable.play,getApplicationContext());
mTabHost.setOnTabChangedListener(this);
}
}
OfferActivity (This should be open when button pressed)
public class OfferActivity extends Activity
{
private static final String TAG = MainActivity.class.getSimpleName();
private ListView listView;
private FeedListAdapter listAdapter;
private List<FeedItem> feedItems;
private ProgressDialog pDialog;
private String URL_FEED = "http://nusdtech.com/public_html/checking2.php";
#SuppressLint("NewApi")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main1);
listView = (ListView) findViewById(R.id.list);
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(this, feedItems);
listView.setAdapter(listAdapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// These two lines not needed,
// just to get the look of facebook (changing background color & hiding the icon)
getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#3b5998")));
//getActionBar().setIcon(
// new ColorDrawable(getResources().getColor(android.R.color.transparent)));
JsonArrayRequest movieReq = new JsonArrayRequest(URL_FEED,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
FeedItem movie = new FeedItem();
movie.setId(obj.getInt("id"));
movie.setName(obj.getString("name"));
// Image might be null sometimes
String image = obj.isNull("image") ? null : obj
.getString("image");
movie.setImge(image);
movie.setStatus(obj.getString("status"));
movie.setProfilePic(obj.getString("profilePic"));
//movie.setTimeStamp(obj.getString("price"));
movie.setPrice(obj.getString("price"));
movie.setDate(obj.getString("dates"));
feedItems.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
listAdapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(movieReq);
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
AppController:
public class AppController extends Application {
public static final String TAG = AppController.class.getSimpleName();
private RequestQueue mRequestQueue;
private ImageLoader mImageLoader;
LruBitmapCache mLruBitmapCache;
private static AppController mInstance;
#Override
public void onCreate() {
super.onCreate();
mInstance = this;
}
public static synchronized AppController getInstance() {
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(getApplicationContext());
}
return mRequestQueue;
}
public ImageLoader getImageLoader() {
getRequestQueue();
if (mImageLoader == null) {
getLruBitmapCache();
mImageLoader = new ImageLoader(this.mRequestQueue, mLruBitmapCache);
}
return this.mImageLoader;
}
public LruBitmapCache getLruBitmapCache() {
if (mLruBitmapCache == null)
mLruBitmapCache = new LruBitmapCache();
return this.mLruBitmapCache;
}
public <T> void addToRequestQueue(Request<T> req, String tag) {
req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);
getRequestQueue().add(req);
}
public <T> void addToRequestQueue(Request<T> req) {
req.setTag(TAG);
getRequestQueue().add(req);
}
public void cancelPendingRequests(Object tag) {
if (mRequestQueue != null) {
mRequestQueue.cancelAll(tag);
}
}
}
Activity that contain fragment buttons
public class NewSampleFragment extends Fragment {
private static View mView;
private Context con;
public static final NewSampleFragment newInstance(Context con,int layout) {
NewSampleFragment f = new NewSampleFragment();
con=con;
Bundle b = new Bundle();
b.putInt("mylayout",layout);
f.setArguments(b);
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
int layout = getArguments().getInt("mylayout");
mView = inflater.inflate(R.layout.newfragment_a, container, false);
Button button = (Button) mView.findViewById(R.id.bactivity);
Button offer=(Button) mView.findViewById(R.id.aactivity);
button.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
Intent myIntent = new Intent(getActivity(), ListViewDemo.class);
//Optional parameters
getActivity().startActivity(myIntent);
Log.e("Error","Kashif");
}
});
offer.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
startApplication("uzair.sabir.app.OfferActivity");
}
});
return mView;
}
public void startApplication(String application_name){
try{
Intent intent = new Intent("android.intent.action.MAIN");
intent.addCategory("android.intent.category.LAUNCHER");
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
List<ResolveInfo> resolveinfo_list = getActivity().getPackageManager().queryIntentActivities(intent, 0);
for(ResolveInfo info:resolveinfo_list){
if(info.activityInfo.packageName.equalsIgnoreCase(application_name)){
launchComponent("uzair.sabir.app", "OfferActivity");
break;
}
}
}
catch (ActivityNotFoundException e) {
Toast.makeText(getActivity(), "There was a problem loading the application: "+application_name,Toast.LENGTH_SHORT).show();
Log.e("Error",e.getMessage());
}
}
private void launchComponent(String packageName, String name){
Intent launch_intent = new Intent("android.intent.action.MAIN");
launch_intent.addCategory("android.intent.category.LAUNCHER");
launch_intent.setComponent(new ComponentName(packageName, name));
launch_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
getActivity().startActivity(launch_intent);
}
}
The ImagePagerActivity show the page 1 (In scrollview) when i rotate the device. How to solve it? Thanks.
public class ImagePagerActivity extends BaseActivity {
private static final String STATE_POSITION = "STATE_POSITION";
ViewPager pager;
public void onCreate(Bundle savedInstanceState) {
// ...
if (savedInstanceState != null) {
pagerPosition = savedInstanceState.getInt(STATE_POSITION);
}
// ...
pager.setCurrentItem(pagerPosition);
}
public void onSaveInstanceState(Bundle outState) {
outState.putInt(STATE_POSITION, pager.getCurrentItem());
}
...
}