Question

我正在android studio上工作。我先告诉你我需要什么作为输出。有2个屏幕。在第一个中，我放置了一个图像。我想要的是，无论何时启动或打开该应用程序，主屏幕中的图像都会淡入几秒钟，然后自动移至第二个屏幕。没有任何按钮，没有任何点击监听器。我看到了一些教程，尽管我设法通过单击侦听器来做到这一点。现在我希望它自动淡入几秒钟，然后出现几秒钟的屏幕。以下是主屏幕的代码。

Java代码：

public class MainActivity extends AppCompatActivity {

        private static int SPLASH_TIME = 4000; //This is 4 seconds
        private ImageView object;


        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            object=(ImageView)findViewById(R.id.fadein);
            new Handler().postDelayed(new Runnable() {

                @Override

                public void run() {
                    Intent mySuperIntent = new Intent(MainActivity.this, Main2Activity.class);
                    startActivity(mySuperIntent);
                    finish();
                }
            }, SPLASH_TIME);
        }

    public void onFade(View view) {
        Animation FadeAnim= AnimationUtils.loadAnimation(getApplicationContext(),R.anim.view_fade);
        object.startAnimation(FadeAnim);
    }
        }

该xml文件仅包含图像属性和一个onclick。

Answer 1

您可以添加一个侦听器并在其上启动下一个活动

 using UnityEngine;

 public class KeyboardMovement : MonoBehaviour
 {
     private CharacterController controller;
     public float walkSpeed;
     public float sprintSpeed;
     public float crouchSpeed;
     public float jumpHeight;
     Vector3 up = Vector3.zero;
     Vector3 movement = Vector3.zero;
     Vector3 forward = Vector3.zero;
     Vector3 sideways = Vector3.zero;
     void Start()
     {
         controller = GetComponent<CharacterController>();
     }


     void Update()
     {
         float speed = walkSpeed;
         //If crouching, set speed to crouch speed. This ovverides sprinting
         if (SingletonSettings.GetKey(SingletonSettings.Keybindings.crouch))
             speed = crouchSpeed;
         //Else if sprinting, set speed to sprint speed
         else if (SingletonSettings.GetKey(SingletonSettings.Keybindings.sprint))
             speed = sprintSpeed;

         //Create vectors for movement
         forward = transform.TransformDirection(Vector3.forward) * Input.GetAxis("Vertical");
         sideways = transform.TransformDirection(Vector3.right) * Input.GetAxis("Horizontal");
         //up = SingletonSettings.GetKey(SingletonSettings.Keybindings.jump) && controller.isGrounded ? Vector3.up * jumpHeight : Vector3.zero;
         movement = (up * 100) + ((forward + sideways) * 10 * Time.deltaTime * speed);

         //Combine vectors and Multiply by DeltaTime to ensure smooth movement at different framerates.
         //Also multiply by 10*speed to ensure correct speed in different states
          if (controller.isGrounded && Input.GetKey(KeyCode.Space))
         {
             movement.y = jumpHeight*50 * Time.deltaTime;
         }
         controller.SimpleMove(movement);
     }
     void OnGUI()
     {
         GUILayout.Label('\n' + Newtonsoft.Json.JsonConvert.SerializeObject(movement.y, Newtonsoft.Json.Formatting.Indented, new Newtonsoft.Json.JsonSerializerSettings
         {
             ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
         }));
     }
 }

Answer 2

您只需要做的就是从imgView中删除onClick函数，并在public void run（）之前在onCreate函数中实现动画代码行。让我知道它是否对您有用

如何在不点击的情况下设置淡入/淡出图像

2 个答案: