关于以下异常的解决办法
Caused by: android.util.AndroidRuntimeException: requestFeature() must be called before adding content
今天根据教程写了一个例子，就是调用android中的android.hardware.Camera来完成拍照功能，但是遇到这么一个异常。
setContentView(R.layout.main);
requestWindowFeature(Window.FEATURE_NO_TITLE);
我是这么写的，结果抛异常了，解决方法如下：
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
嗯，顺序换一下就好
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