Android：在GridViewPager上设置当前项

Question

我无法在网格视图寻呼机中设置当前项目。这是我的代码：

sql injection

适配器类

public class GridActivity extends Activity {

private GridAdapter GridAdapter;


@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_grid);

    final Resources res = getResources();
    final GridViewPager pager = (GridViewPager) findViewById(R.id.pager);

    GridAdapter = new GridAdapter(this, getFragmentManager());

    pager.setAdapter(GridAdapter);

    pager.setCurrentItem(0, 1);

    DotsPageIndicator dotsPageIndicator = (DotsPageIndicator) findViewById(R.id.page_indicator);
    dotsPageIndicator.setPager(pager);

    };

}

我正在寻呼机上设置当前项目，但它不起作用，它始终在第一页上启动。

Answer 1

我在设置适配器后找到了这样的解决方法：

    pager.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
        @Override
        public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
            pager.setCurrentItem(0, position, false);
            pager.getAdapter().notifyDataSetChanged();
            pager.removeOnLayoutChangeListener(this);
        }
    });