老師，在MainActivity中調(diào)用了mViewPager.setOnPageChangeListener(new OnPageChangeListener()以后，ViewPageIndicator中的.setOnPageChangeListener沒有作用了，三角指示器不會跟著動了，怎么辦？?private?void?initEvents()?{ //?TODO?Auto-generated?method?stub //mViewPager=(ViewPager)?findViewById(R.id.id_viewpager); mViewPager.setOnPageChangeListener(new?OnPageChangeListener()?{ @Override public?void?onPageSelected(int?arg0)?{ View?v=mViewlist.get(arg0); switch(arg0) { ??case?0: ?v.setOnClickListener(new?View.OnClickListener()?{ @Override public?void?onClick(View?v)?{ //?TODO?Auto-generated?method?stub Intent?intent?=?new?Intent(MainActivity.this,?firstpage.class); startActivity(intent); } ???}); ?break; ??case?1: ??v.setOnClickListener(new?View.OnClickListener()?{ @Override public?void?onClick(View?v)?{ //?TODO?Auto-generated?method?stub Intent?intent?=?new?Intent(MainActivity.this,?encoding.class); startActivity(intent); } ???}); ?break; ??case?2: ??v.setOnClickListener(new?View.OnClickListener()?{ @Override public?void?onClick(View?v)?{ //?TODO?Auto-generated?method?stub Intent?intent?=?new?Intent(MainActivity.this,?decoding.class); startActivity(intent); } ???}); ?break; ??case?3: ??v.setOnClickListener(new?View.OnClickListener()?{ @Override public?void?onClick(View?v)?{ //?TODO?Auto-generated?method?stub Intent?intent?=?new?Intent(MainActivity.this,?history.class); startActivity(intent); } ???}); ?break; } } @Override public?void?onPageScrolled(int?arg0,?float?arg1,?int?arg2)?{ //?TODO?Auto-generated?method?stub } @Override public?void?onPageScrollStateChanged(int?arg0)?{ //?TODO?Auto-generated?method?stub } }); }