android |平滑缺少交换标签gridview

Question

我在我的应用程序中有两个标签，每个都有gridview控股20+ imageview s。我成功地实现了我想要的，但问题是，当我从第一个标签页滑动到第二个标签页时，转换并不平滑。我为gridview s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; 
    } 
} 

请帮我获得平稳的过渡选项卡。

编辑：ViewPager实施

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; 
      } 
     } 
    } 
} 

Answer 1

它接缝你用同一个适配器来加载图片的两个标签，因此可以有一些延迟。然后检查您的图像尺寸是否大或小图像（高分辨率）。由于图像网格视图的大尺寸可能会导致加载适配器时出现相同的延迟。我之前也有过这方面的经验，我减少了图像的大小，减少了延迟。