public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
GradientDrawable drawable = new GradientDrawable();
drawable.setShape(GradientDrawable.RECTANGLE);
drawable.setStroke(3, Color.GREEN);
View view = inflater.inflate(R.layout.primary, container, false);
LinearLayout layout = (LinearLayout ) view.findViewById(R.layout.primary);
// 1 layout.setBackground(fragmentBorder); <----
// ^ above line causes the crash ^
layout.setBackgroundDrawable(drawable);
return view;
}
没有编译错误,只是在测试时崩溃了
最佳答案
LinearLayout layout = (LinearLayout ) view.findViewById(R.layout.primary);
请将上面的行更改为
LinearLayout layout = (LinearLayout ) view.findViewById(R.id.primary);
你的线性布局仍然为空,这就是它崩溃的原因
关于java - 为什么gradientdrawable.setBackground会让我的应用程序崩溃?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46986440/