我的問題是我在選項卡布局中創建了8個viewpager。假設我想要3個查看頁面,但我想刪除其餘的頁面。For循環循環
這是我的代碼添加選項卡,我用循環刪除其餘選項卡,但有錯誤「無效的索引6,大小爲6」,因此,它不符合我的要求。如何調整我的循環功能。
BasePagerAdapter adapter = new BasePagerAdapter(getSupportFragmentManager());
Tab1 tab1 = new Tab1();
Tab2 tab2 = new Tab2();
Tab3 tab3 = new Tab3();
Tab4 tab4 = new Tab4();
Tab5 tab5 = new Tab5();
Tab6 tab6 = new Tab6();
Tab7 tab7 = new Tab7();
Tab8 tab8 = new Tab8();
Tab9 tab9 = new Tab9();
adapter.addFragment(tab1, "All");
adapter.addFragment(tab2, "1");
adapter.addFragment(tab3, "2");
adapter.addFragment(tab4, "3");
adapter.addFragment(tab5, "4");
adapter.addFragment(tab6, "5");
adapter.addFragment(tab7, "6");
adapter.addFragment(tab8, "7");
adapter.addFragment(tab9, "8");
//Initializing viewPager
viewPager = (ViewPager) findViewById(R.id.pager);
//Creating our pager adapter
//Adding adapter to pager
viewPager.setAdapter(adapter);
int ans =3;
for(int i =8 ; ans<=i ; ans++) {
adapter.removeFragment(ans);
}
哪裏是''ans''? –
'我'有什麼意義? 'for(int i = 8; ans <= i; ans ++)'與'for(; ans <= 8; ans ++)'相同,因爲你永遠不會改變'i'。相反,嘗試'for(int i = 8; i> = ans; i--){adapter.removeFragment(i); }'從最後刪除它們,所以在刪除過程中索引值保持不變。 – Andreas
sry,編輯 – AnthonyTang