Comment arrêter le défilement automatique de l'image curseur sur l'événement tactile

Question

J'ai créé un curseur d'image automatique en utilisant ViewPager personnalisé Maintenant, je veux savoir comment arrêter le glissement automatique des images sur le toucher et redémarrer le curseur à partir de ce qu'il restait lorsque vous appuyez sur est libérée.

Voici mon CustomViewPager.java: -

public class CustomViewPager extends ViewPager { 

    private boolean isPagingEnabled = true; 

    public CustomViewPager(Context context) { 
     super(context); 
    } 

    public CustomViewPager(Context context, AttributeSet attrs) { 
     super(context, attrs); 
    } 

    @Override 
    public boolean onTouchEvent(MotionEvent event) { 

     return this.isPagingEnabled && super.onTouchEvent(event); 
    } 

    @Override 
    public boolean onInterceptTouchEvent(MotionEvent event) { 
     return this.isPagingEnabled && super.onInterceptTouchEvent(event); 
    } 

    public void setPagingEnabled(boolean b) { 
     this.isPagingEnabled = b; 
    } 


} 

Voici ImageAdapter.java: -

public class SlidingImage_Adapter extends PagerAdapter { 


    Context context; 
    int images[]; 
    LayoutInflater inflater; 


    public SlidingImage_Adapter(Context context, int images[]) { 

     this.context = context; 
     this.images = images; 
     inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 



    @Override 
    public void destroyItem(ViewGroup container, int position, Object object) { 
     container.removeView((View) object); 
    } 

    @Override 
    public int getCount() { 
     return images.length; 
    } 

    @Override 
    public Object instantiateItem(ViewGroup container, final int position) { 
     View itemView = inflater.inflate(R.layout.sliding_images, container, false); 


     final ImageView imageView = (ImageView) itemView 
       .findViewById(R.id.image); 


     imageView.setImageResource(images[position]); 

     container.addView(itemView, 0); 

     return itemView; 
    } 

    @Override 
    public boolean isViewFromObject(View view, Object object) { 
     return view.equals(object); 
    } 

    @Override 
    public void restoreState(Parcelable state, ClassLoader loader) { 
    } 

    @Override 
    public Parcelable saveState() { 
     return null; 
    } 

} 

est ici Fragment.java où je me sers de ce CustomViewPager: -

public class HomeFragment extends Fragment { 

    private static final String ARG_PARAM1 = "param1"; 
    private static final String ARG_PARAM2 = "param2"; 
    TextView tv_slider, tv_button; 
    RelativeLayout dummyView; 
    CustomViewPager mViewPager; 

    Timer timer; 
    final long DELAY_MS = 1000;//delay in milliseconds before task is to be executed 
    final long PERIOD_MS = 3000; 



    private static int currentPage = 0; 
    private static int NUM_PAGES = 0; 
    int images[] = {R.drawable.ecommerce, R.drawable.digital_marketing, R.drawable.explainer, R.drawable.it_services, 
      R.drawable.mobile_app, R.drawable.seo, R.drawable.software, R.drawable.webdesign}; 
    SlidingImage_Adapter imageAdapter; 


    // TODO: Rename and change types of parameters 
    private String mParam1; 
    private String mParam2; 

    private OnFragmentInteractionListener mListener; 

    public HomeFragment() { 

    } 

    public static HomeFragment newInstance(String param1, String param2) { 
     HomeFragment fragment = new HomeFragment(); 
     Bundle args = new Bundle(); 
     args.putString(ARG_PARAM1, param1); 
     args.putString(ARG_PARAM2, param2); 
     fragment.setArguments(args); 
     return fragment; 
    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     if (getArguments() != null) { 
      mParam1 = getArguments().getString(ARG_PARAM1); 
      mParam2 = getArguments().getString(ARG_PARAM2); 


     } 
    } 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View v = inflater.inflate(R.layout.fragment_home, container, false); 

     tv_slider=(TextView)v.findViewById(R.id.tv_slider); 
     tv_slider.setTypeface(EasyFonts.robotoLight(this.getActivity())); 
     tv_button=(TextView)v.findViewById(R.id.tv_button); 
     tv_button.setTypeface(EasyFonts.robotoLight(this.getActivity())); 


     mViewPager = (CustomViewPager) v.findViewById(R.id.pager); 
     imageAdapter = new SlidingImage_Adapter(getActivity(),images); 
     mViewPager.setAdapter(imageAdapter); 




     final Handler handler = new Handler(); 
     final Runnable Update = new Runnable() { 
      public void run() { 
       if (currentPage == NUM_PAGES) { 
        currentPage = 0; 
       } 
       mViewPager.setCurrentItem(currentPage++, true); 

      } 
     }; 

       Timer swipeTimer = new Timer(); 
     swipeTimer.schedule(new TimerTask() { 
      @Override 
      public void run() { 
       handler.post(Update); 
      } 
     }, DELAY_MS, PERIOD_MS); 






     CirclePageIndicator indicator = (CirclePageIndicator) 
       v.findViewById(R.id.indicator); 

     indicator.setViewPager(mViewPager); 

     final float density = getResources().getDisplayMetrics().density; 

     //Set circle indicator radius 
     indicator.setRadius(3 * density); 

     NUM_PAGES =images.length; 



     // Pager listener over indicator 
     indicator.setOnPageChangeListener(new CustomViewPager.OnPageChangeListener() { 

      @Override 
      public void onPageSelected(int position) { 
       currentPage = position; 

      } 



      @Override 
      public void onPageScrolled(int pos, float arg1, int arg2) { 

       switch (pos){ 

        case 0: 
         tv_slider.setText(getString(R.string.es_content)); 
         break; 

        case 1: 
         tv_slider.setText(getString(R.string.dm_content)); 
         break; 

        case 2: 
         tv_slider.setText(getString(R.string.ev_content)); 
         break; 

        case 3: 
         tv_slider.setText(getString(R.string.it_content)); 
         break; 

        case 4: 
         tv_slider.setText(getString(R.string.md_content)); 
         break; 

        case 5: 
         tv_slider.setText(getString(R.string.seo_content)); 
         break; 

        case 6: 
         tv_slider.setText(getString(R.string.sd_content)); 
         break; 

        case 7: 
         tv_slider.setText(getString(R.string.wd_content)); 
         break; 

       } 



      } 

      @Override 
      public void onPageScrollStateChanged(int pos) { 

      } 
     }); 


     return v; 


    } 

Answer 1

j'ai trouvé une bibliothèque tierce partie "Library Link" et il a des méthodes intégrées pour démarrer et arrêter le défilement automatique.

Answer 2

Selon la documentation this, l'onTouchEvent que vous avez déjà remplacé idden est l'endroit où regarder.

Maintenant, au lieu d'appeler super.onTouchEvent (event) à nouveau comme vous l'avez fait dans votre méthode. implémentez votre propre action personnalisée. en appelant super, vous acceptez le comportement par défaut.

Answer 3

ceci est mon code exemple, il fonctionne bien =>

public class MainActivity extends AppCompatActivity { 

    final long DELAY_MS = 1000;//delay in milliseconds before task is to be executed 
    final long PERIOD_MS = 3000; 
    int currentPage = 0; 
    public Timer timer; 
    public Timer swipeTimer; 
    public static boolean startSlider = true; 
    public TextView textView; 
    public LinearLayout layout; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     textView = (TextView) findViewById(R.id.textView); 
     layout = (LinearLayout) findViewById(R.id.layout); 

     final Handler handler = new Handler(); 
     final Runnable Update = new Runnable() { 
      public void run() { 

       if (currentPage == 6) { 
        currentPage = 0; 
       } 
       currentPage++; 
       textView.setText(String.valueOf(currentPage)); 

      } 
     }; 


     swipeTimer = new Timer(); 
     swipeTimer.schedule(new TimerTask() { 
      @Override 
      public void run() { 
       if (startSlider){ 
        handler.post(Update); 
       } 

      } 
     }, DELAY_MS, PERIOD_MS); 

     layout.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       if (startSlider){ 
        startSlider = false; 
       }else { 
        startSlider = true; 
       } 
      } 
     }); 

    } 

}