ViewStub'parent的ViewGroup [英] ViewStub'parent viewgroup

问题描述

什么是例外的意思

ava.lang.IllegalStateException：ViewStub必须有一个非空的ViewGroup viewParent

我创造查看存根的数组，并将它们添加到的LinearLayout但这异常显示在运行时

 的for（int i = 0; I和LT; 1;我++）
{
  尝试
     {
       存根[0] =新ViewStub（getApplicationContext（），R.layout.view_stub_layout）;      //Viewv=stub[i].inflate(getApplicationContext(),R.layout.view_stub_layout,mainLayout）;
      //stub[0].setLayoutResource(R.layout.view_stub_layout）;
      视图V;
      V =存根[0] .inflate（）;
      mainLayout.addView（五）;
      V =零;
  }
  赶上（例外五）{
      e.getMessage（）;
  }
}
 

解决方案

您 ViewStub 没有父母，这就是为什么你赶上例外。您必须在布局先加 ViewStub ，之后就可以将其扩充到另一个查看。

为什么你用

ViewStub ？你真的需要它吗？也许这可以很好的解决方案：

  {尝试
    View.inflate（getApplicationContext（），R.layout.view_stub_layout，mainLayout）;
}赶上（例外五）{
    e.getMessage（）;
}
 

如果你需要不断补充意见：

  {尝试
    意见[I] = View.inflate（getApplicationContext（），R.layout.view_stub_layout，NULL）;
    mainLayout.add（意见[I]）;
}赶上（例外五）{
    e.getMessage（）;
}
 

What is the meaning of that exception

ava.lang.IllegalStateException: ViewStub must have a non-null ViewGroup viewParent

i am creating an array of View Stub and adding them to a linearLayout but this exception is showing at run time

for(int i=0;i<1;i++)
{
  try
     {
       stub[0]=new ViewStub(getApplicationContext(),R.layout.view_stub_layout);

      //Viewv=stub[i].inflate(getApplicationContext(),R.layout.view_stub_layout,mainLayout);
      //stub[0].setLayoutResource(R.layout.view_stub_layout);
      View v;
      v=stub[0].inflate();
      mainLayout.addView(v);
      v=null;
  }
  catch(Exception e){
      e.getMessage();
  }
}

解决方案

Your ViewStub don't have a parent, that's why you catch Exception. You must add ViewStub in Layout at first, after you can inflate it to another View.

Why you use ViewStub? Do you really need it? Maybe it can be good solution:

try {
    View.inflate(getApplicationContext(), R.layout.view_stub_layout, mainLayout);
} catch(Exception e){
    e.getMessage();
}

If you need to keep added Views:

try {
    views[i] = View.inflate(getApplicationContext(), R.layout.view_stub_layout, null);
    mainLayout.add(views[i]);
} catch(Exception e){
    e.getMessage();
}

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