在robotium中如何处理多个类

Question

public class ClassA extends Solo_d{
public void click_on_save(){
Log.v("Test" , "Test in classA");
solo.sleep(5000);                // getting error null pointer exception 
solo.clickOnText("Saved")
}}


public class ClassC extends Solo_d {
ClassA aa = new ClassA();
@Test
public void test001(){
Log.v("Test" , "Test Start ");
aa.click_on_save();
}}

但我得到了NullPointerException任何人都可以帮忙

Answer 1

我想您需要向类A添加构造函数并删除“extends solo_d”

public class ClassA{

    static Solo solo;

    //contructor
    public ClassA(Solo _solo){
      solo = _solo
    }

    public void click_on_save(){
    Log.v("Test" , "Test in classA");
    solo.sleep(5000);
    solo.clickOnText("Saved");
    }
}

在您的classc中：

public class ClassC extends Solo_d {

    @Test
    public void test001(){
    ClassA aa = new ClassA(solo);
    Log.v("Test" , "Test Start ");
    aa.click_on_save();
    }
}

您可以在ClassC中创建相同的构造函数，并在Solo_d类中调用它（例如，在setUp（）方法中）

public class ClassC {

    static Solo solo;
    public ClassC(Solo _solo){
        solo = _solo
    }
    ClassA aa = new ClassA(solo);
    @Test
    public void test001(){
    Log.v("Test" , "Test Start ");
    aa.click_on_save();
    }
}