Google Android - это несложно

Код: Выделить всё

cTitleIndicator.setOnPageChangeListener(new OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageScrollStateChanged(int state) {
            	if (state == ViewPager.SCROLL_STATE_IDLE) {
            		
            		if (focusedPage == 0) {            			
            			new Handler().post(new Runnable() {
            				@Override
            				public void run() {
		            			for(int i=0;i<3;i++){
		            					cArray[i].prevMonth();
		                				taCalendarViewMaker.makeGrid(ctx, views[i], cArray[i]);		                				
		                				if(i==currentSelView){
		                					cTitleIndicator.setCurrentItem(currentSelView, false); 
		                				} 
		                				
		            			}
            				
            				}
            			});             			
            		} else if (focusedPage == 2) {
            			new Handler().post(new Runnable() {
            				@Override
            				public void run() {
		            			for(int i=0;i<3;i++){	
		            					cArray[i].nextMonth();   
		                				taCalendarViewMaker.makeGrid(ctx, views[i], cArray[i]);		                				
		                				if(i==currentSelView){
		                					cTitleIndicator.setCurrentItem(currentSelView, false); 
		                				}
		            			}
            				}
            			});
            		} 
            	}
            }

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