如何双屏异显？

Chip Platform Rockchip
1

如题，谢谢！

2
  1. DisplayManager mDisplayManager;//屏幕管理类
    Display displays;//屏幕数组
    mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE);
    displays =mDisplayManager.getDisplays();

2.主屏和副屏的区分？

主屏：displays[0]
副屏：displays[1]

3.如何在副屏上展示内容？

通过Presentation来实现，Presentation继承了Dialog。假设我们写了一个DifferentDislay的类，这个类是要继承
Presentation类的。代码：

privateclass DifferentDislay extends Presentation{
public DifferentDislay(ContextouterContext, Display display) {
super(outerContext,display);
//TODOAuto-generated constructor stub
}

@Override
protectedvoid onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.layout02);
}

}

4.开启副屏

DifferentDislay mPresentation =new DifferentDislay (getApplicationContext(),displays[1]);//displays[1]是副屏
mPresentation.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
mPresentation.show();

3

android 几？