My list is not scrolling when I use digital crown
This is what I do ;
<androidx.wear.widget.WearableRecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/wrv_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
/>
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.wrv_demo);
WearableRecyclerView wrv = findViewById(R.id.wrv_container);
wrv.setLayoutManager(new WearableLinearLayoutManager(this));
wrv.setAdapter(new DemoAdapter());
wrv.setHasFixedSize(true);
wrv.setCircularScrollingGestureEnabled(true);
wrv.setEdgeItemsCenteringEnabled(true);
wrv.setOnGenericMotionListener(new View.OnGenericMotionListener() {
#Override
public boolean onGenericMotion(View view, MotionEvent motionEvent) {
return false;
}
});
wrv.setBezelFraction(0.5f);
wrv.setScrollDegreesPerScreen(90);
}
private static class ViewHolder extends RecyclerView.ViewHolder {
TextView mView;
ViewHolder(TextView itemView) {
super(itemView);
mView = itemView;
}
}
private static class DemoAdapter extends WearableRecyclerView.Adapter<ViewHolder> {
private static final int ITEM_COUNT = 100;
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
TextView view = new TextView(parent.getContext());
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.mView.setText("Holder at position " + position);
holder.mView.setTag(position);
}
#Override
public int getItemCount() {
return ITEM_COUNT;
}
}
}
short answer:
wrv.requestFocus();
long answer:
this page outlines how to capture rotary input.
https://developer.android.com/training/wearables/ui/rotary-input
I found that my WearOS app's recyclerview worked automatically in the emulator without any of what it said on that page; however, it did not work on my watch. I implemented every step on that page and then the watch worked. Then I removed every thing on that page. For me, the only thing needed was the recyclerView.requestFocus() line.
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);
}
}
my viewpager is different (with multy xml and java file.means page1 java and xml file,page2 java and xml file,page3 java and xml files are seprate).
and want to sate cubeout effect in my viewpager.
**this is my coad **
public class MercuryActivity extends FragmentActivity implements OnPageListener {
List fragments = new Vector();
private ViewPager mPager;
private PagerAdapter mPagerAdapter;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.fragments.add(Fragment.instantiate(this, Page1Fragment.class.getName()));
this.fragments.add(Fragment.instantiate(this, Page2Fragment.class.getName()));
this.fragments.add(Fragment.instantiate(this, Page3Fragment.class.getName()));
this.fragments.add(Fragment.instantiate(this, Page4Fragment.class.getName()));
this.mPagerAdapter = new PagerAdapter(super.getSupportFragmentManager(), this.fragments);
this.mPager = (ViewPager) super.findViewById(R.id.pager);
this.mPager.setAdapter(this.mPagerAdapter);
}
public void onPage1(String s) {
((Page2Fragment) this.fragments.get(1)).getView();
((Page3Fragment) this.fragments.get(2)).getView();
((Page4Fragment) this.fragments.get(3)).getView();
}
public void onBackPressed() {
new Builder(this).setIcon(17301543).setTitle("Exit").setMessage("Are you sure you want to exit?").setPositiveButton("Yes", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
MercuryActivity.this.moveTaskToBack(true);
MercuryActivity.this.finish();
}
}).setNegativeButton("No", null).show();
}
}
and this is my page adapter
public class PagerAdapter extends FragmentPagerAdapter {
private List fragments;
public PagerAdapter(FragmentManager fm, List<Fragment> fragments) {
super(fm);
this.fragments = fragments;
}
public Fragment getItem(int position) {
return (Fragment) this.fragments.get(position);
}
public int getCount() {
return this.fragments.size();
}
}
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);
}
}
How to display an image on a UiApplication?
I have a code that displays a button and when clicked it goes to a MainScreen, but I'd like to display an image below that button. I found a way to insert a zoomable image but not a static one.
Here's my code so far:
public class HelloWorldDemo extends UiApplication {
private MainScreen _screen;
private ButtonField _nextScreen;
public static void main(String[] args) {
HelloWorldDemo instance = new HelloWorldDemo();
instance.enterEventDispatcher();
}
public HelloWorldDemo() {
EncodedImage myImg = EncodedImage.getEncodedImageResource("k.jpg");
ZoomScreen zoomableImg = new ZoomScreen(myImg);
_screen = new MainScreen();
_nextScreen = new ButtonField("Go to Next Screen",ButtonField.FIELD_HCENTER | ButtonField.CONSUME_CLICK);
_nextScreen.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field,int context) {
pushScreen(new NextScreen());
}
});
_screen.setTitle(new LabelField("Hello World Demo",LabelField.USE_ALL_WIDTH));
_screen.add(new RichTextField("Hello to the BlackBerry World!",Field.NON_FOCUSABLE));
_screen.add(_nextScreen);
pushScreen(_screen);
pushScreen(zoomableImg);
}
}
//I'm confused about your question. But still I'm posting ans here hope it will help you.
public final class ZoomScreenDemo extends UiApplication
{
public static void main(final String[] args)
{
UiApplication app = new ZoomScreenDemo();
app.enterEventDispatcher();
}
public ZoomScreenDemo()
{
pushScreen(new ZoomScreenDemoScreen());
}
public final static class ZoomScreenDemoScreen extends MainScreen
{
private EncodedImage _image;
private ButtonField _nextScreen;
public ZoomScreenDemoScreen()
{
setTitle("Zoom Screen Demo");
_nextScreen = new ButtonField("Go to next screen ",ButtonField.CONSUME_CLICK);
_nextScreen.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
UiApplication.getUiApplication().pushScreen(new DemoZoomScreen(_image));
}
});
add( _nextScreen );
_image = EncodedImage.getEncodedImageResource("img/building.jpg");
BitmapField bitmapField = new BitmapField(_image.getBitmap(), FIELD_HCENTER | FOCUSABLE);
add(bitmapField);
}
}
static class DemoZoomScreen extends ZoomScreen
{
DemoZoomScreen(EncodedImage image)
{
super(image);
}
public void zoomedOutNearToFit()
{
close();
}
}
}