查看传呼机与OnLongClickListener不起作用

Question

我有一个ViewPager我试图应用onLongClickListener来改变从不活动的活动的片段。

mPager1.setOnLongClickListener(new View.OnLongClickListener() { 
    @Override 
    public boolean onLongClick(View v) { 
    onViewPagerClick(); 
     return false; 
    } 
}); 

片段置换：

public void onViewPagerClick() { 
    FragmentTransaction ft5 = getSupportFragmentManager().beginTransaction(); 
    fragment = new SingleProductFragment(); 
    container.setVisibility(View.VISIBLE); 
    ft5.add(R.id.container, fragment); 
    // ft.addToBackStack(null); 
    ft5.commit(); 
    sv.setVisibility(View.INVISIBLE); 
    addButton.setVisibility(View.INVISIBLE); 
} 

Answer 1

ViewPager不会消耗单击事件，所以要尽量设置监听器上的图像或容器布局，而不是viewPager的instantiateItem()。

UPDATE

@Override 
public Object instantiateItem(ViewGroup container, int position) { 
LayoutInflater inflater = LayoutInflater.from(MainActivity.this); 
ViewGroup viewPagerItem = (ViewGroup)inflater.inflate(R.layout.viewPager_item, container, false); 
ImageView imageView = (ImageView)viewPagerItem.findViewById(R.id.imageView); 
viewPagerItem.setOnLongClickListener(new View.OnLongClickListener() { 
    @Override 
    public boolean onLongClick(View view) { 
     Toast.makeText(MainActivity.this, "TEST", Toast.LENGTH_LONG).show(); 

     return false; 
    } 
    }); 

    container.addView(viewPagerItem); 

    return viewPagerItem; 
}