Question

Android的Activity图标设置

我想给Accel World前加个图标，代码如下：
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Window win = getWindow(); win.requestFeature(Window.FEATURE_LEFT_ICON); setContentView(R.layout.activity_main); win.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.ic_jing); Button btn = (Button)findViewById(R.id.button); btn.setOnClickListener(this);}
但是这个会报错 requestFeature() must be called before adding content
如果把Window win = getWindow(); win.requestFeature(Window.FEATURE_LEFT_ICON);放在第一行，虽然不报错，但没有任何效果，求高手给小弟解答，感激不尽

Answer 1

可以在AndroidManifest.xml文件的activity标签中加入图片android:icon=""

追问

我加在这里，运行后还是没有图标

追答

Window win = getWindow();
win.requestFeature(Window.FEATURE_LEFT_ICON);
setContentView(R.layout.activity_main);
win.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.app_icon);
我刚才试了下，你之前写是对的啊，看看是不是别的地方的问题