我必须经常在两种布局之间切换。错误在下面发布的布局中发生。
第一次调用布局时,不会发生任何错误,一切都很好。然后,当我调用其他布局(空白)并随后再次调用我的布局时,它将引发以下错误:
> FATAL EXCEPTION: main
> java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
我的布局代码如下所示:
tv = new TextView(getApplicationContext()); // are initialized somewhere else
et = new EditText(getApplicationContext()); // in the code
private void ConsoleWindow(){
runOnUiThread(new Runnable(){
@Override
public void run(){
// MY LAYOUT:
setContentView(R.layout.activity_console);
// LINEAR LAYOUT
LinearLayout layout=new LinearLayout(getApplicationContext());
layout.setOrientation(LinearLayout.VERTICAL);
setContentView(layout);
// TEXTVIEW
layout.addView(tv); // <========== ERROR IN THIS LINE DURING 2ND RUN
// EDITTEXT
et.setHint("Enter Command");
layout.addView(et);
}
}
}
我知道这个问题以前曾被问过,但对我来说并没有帮助。
LinearLayout
但您要添加TextView
。所以解决它。