android |在交换具有gridview的选项卡时缺少平滑性

我的应用程序中有两个选项卡，每个选项卡都有gridview和20+imageviews。我成功地实现了我想要的，但问题是，当我从第一个选项卡滑动到第二个选项卡时，转换并不顺利。我对gridviews使用相同的适配器

下面是我的适配器实现

public class LogoImageAdapter extends BaseAdapter{
    private Context context;
    private List<Integer> logoIds;
    public LogoImageAdapter(Context context, List<Integer> logoIds) {
        this.context = context;
        this.logoIds = logoIds;
    }
    @Override
    public int getCount() {
        return logoIds.size();
    }

    @Override
    public Object getItem(int position) {
        return logoIds.get(position);
    }

    @Override
    public long getItemId(int position) {
        return logoIds.get(position);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View gridView;
        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            gridView = inflater.inflate(R.layout.grid_item, null);
        } else {
            gridView = convertView;
        }
        /*TextView title = (TextView) gridView.findViewById(R.id.siteNameTV);
            title.setText("Title_" + position);*/
        ImageView logoImage = (ImageView) gridView.findViewById(R.id.logoImageView);
        logoImage.setImageResource(logoIds.get(position));
        return gridView;
    }
}

---

如果您使用相同的适配器加载两个选项卡的图像，则可能会有一些延迟。然后检查图像大小，无论图像大小（高分辨率）。因为大尺寸的图像网格视图可能会导致加载适配器时产生相同的延迟。我以前也有过这样的经历，我减少了图像的大小，减少了延迟

您可以使用相同的适配器为两个选项卡加载图像，因此可能会有一些延迟。然后检查图像大小，无论图像大小（高分辨率）。因为大尺寸的图像网格视图可能会导致加载适配器时产生相同的延迟。我以前也有过这样的经历，我减少了图像的大小，减少了延迟

你的viewpager代码是什么样子？@Jonathan727我已经用viewpager实现更新了我的问题。你的viewpager代码是什么样子？@Jonathan727我已经用viewpager实现更新了我的问题。

public class HomepageActivity extends AppCompatActivity {
    private SectionsPagerAdapter mSectionsPagerAdapter;
    private ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_homepage);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        if (getSupportActionBar()!=null)
            getSupportActionBar().setDisplayShowTitleEnabled(false);
        // Create the adapter that will return a fragment for each of the primary sections/tabs of the activity.
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager) findViewById(R.id.container);
        mViewPager.setAdapter(mSectionsPagerAdapter);

        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(mViewPager);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_items, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.mShare:
                shareApplication();
                break;
        }
        return super.onOptionsItemSelected(item);
    }
    public class SectionsPagerAdapter extends FragmentPagerAdapter {
        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }
        @Override
        public Fragment getItem(int position) {
            switch (position) {
                case 0:
                    return new Homepage();
                case 1:
                    return new Classified();
                case 2:
                    return new Tourism();
                case 3:
                    return new Shopping();
                case 4:
                    return new Travel();
                default:
                    return null;
            }
        }
        @Override
        public int getCount() {
            // number of tabs.
            return Constants.TAB_NUMBER;
        }
        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
                case 0:
                    return Constants.TAB_HOMEPAGE;
                case 1:
                    return Constants.TAB_CLASSIFIED;
                case 2:
                    return Constants.TAB_TOURISM;
                case 3:
                    return Constants.TAB_SHOPPING;
                case 4:
                    return Constants.TAB_TRAVEL;
                default:
                    return null;
            }
        }
    }
}