-1
我才能從服務器加載圖像使用viewpager，每個片斷應該基於適配器片段的當前位置加載圖像。因此，例如位置0將加載圖像0位置1個負載圖像1等。用於過去兩天我正在與得到正確的片段位置struggeling，在總的I具有從但是我已經添加到代碼我可以看到打印輸出3個片段只有位置0和2，因此圖像在位置1沒有得到正確的位置上，從viewpager
複製的主要問題是如何解決這個問題？我想獲得正確的位置，並基於該正確的圖像。基於幾種解決方案下面是viewpager代碼和適配器代碼，它被修改過數次但他們都不似乎工作
public class LoadCarFullSizeImage extends AppCompatActivity{
private ViewPager viewPager;
protected String imagePath;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.car_images);
imagePath=getIntent().getStringExtra("imagePath");
viewPager=(ViewPager)findViewById(R.id.vp_carViewPager);
CirclePageIndicator titleIndicator = (CirclePageIndicator)findViewById(R.id.titles);
PagerAdapter mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager(),imagePath);
viewPager.setAdapter(mPagerAdapter);
titleIndicator.setViewPager(viewPager);
}
@Override
public void onBackPressed() {
if (viewPager.getCurrentItem() == 0) {
// If the user is currently looking at the first step, allow the system to handle the
// Back button. This calls finish() on this activity and pops the back stack.
super.onBackPressed();
} else {
// Otherwise, select the previous step.
viewPager.setCurrentItem(viewPager.getCurrentItem() - 1);
}
}
private static class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter{
private String imgPath;
public ScreenSlidePagerAdapter(android.support.v4.app.FragmentManager fm, String _imagePath) {
super(fm);
this.imgPath=_imagePath;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0: // Fragment # 0 - This will show FirstFragment
return CarImageFragment.newInstance(0, imgPath);
case 1: // Fragment # 0 - This will show FirstFragment different title
return CarImageFragment.newInstance(1, imgPath);
case 2: // Fragment # 1 - This will show SecondFragment
return CarImageFragment.newInstance(2, imgPath);
default:
return null;
}
}
@Override
public int getCount() {
return 3;
}
}
}