用代码实现将activity标题设置成图片。
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
Window win = getWindow();
win.requestFeature(Window.FEATURE_LEFT_ICON);
setContentView(R.layout.mylayout);
win.setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.icon);
}