如何調用並通過其他主屏幕？

Question

在類a which extends MainScreen中，我想打b班，其中extends MainScreen也是。

當我通過b.this進入所示的功能錯誤No enclosing instance of the type b is accessible in

Answer 1

你好，這是很簡單的，我會告訴你簡單的方法

假設你有兩個類

1）屏幕截圖1

2 ）screen2

screen1.java

public class screen1 extends MainScreen 
{ 
    // some lines of code 
    //this is method to going to next screen in side that method 
    UiApplication.getUiApplication().pushScreen(new screen2(screen1.this)); 
} 

screen2.java

public class screen2 extends MainScreen 
{ 
    private Screen1 screen1Object; 
    // here take constructer 
    public screen2(Screen1 screen1Object) 
    { 
     this.screen1Object=screen1Object; 
    } 
} 

在這裏，您可以使用screen1Object

Answer 2

您可以使用此代碼

UiApplication.getUiApplication().invokeAndWait(new Runnable() 
{ 
    public void run() 
    { 
     UiApplication.getUiApplication().pushScreen(new NewScreen()); 
    } 
});