Question

这是我的启动画面的代码：

public class SplashScreenPear extends Activity {
/** Called when the activity is first created. */

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.pear);
    startAnimating();}
private void startAnimating(){
  ImageView pearfade = (ImageView) findViewById(R.id.pearish);
  Animation pearfadeact = AnimationUtils.loadAnimation(this, R.anim.fadein);
 pearfade.startAnimation(pearfadeact);}

 @Override
 protected void onPause() {
  super.onPause();
   ImageView pearfade = (ImageView) findViewById(R.id.pearish);
  pearfade.clearAnimation(); 

  Animation pearfadeact = AnimationUtils.loadAnimation(this, R.anim.fadein);

  pearfadeact.setAnimationListener(new AnimationListener() {


         public void onAnimationEnd(Animation animation) {
                 // The animation has ended, transition to the Main Menu screen
                 startActivity(new Intent(SplashScreenPear.this, Unicorn.class));
                 SplashScreenPear.this.finish();
             }

             public void onAnimationRepeat(Animation animation) {
             }

             public void onAnimationStart(Animation animation) {
             }
         });
         }
     @Override
     protected void onResume() {
         super.onResume();

                      startAnimating();
     }

不幸的是，应用程序无法打开，并且它不会从启动画面进展。我不相信我正在使用的模拟器存在问题，因此必须在此代码中阻止其完全运行。有什么我想念的吗？

Answer 1

OnCesate（）之后将自动调用OnResume（），因此您不需要在onCreate中调用startAnimating（）。 SplashScreenPear.this.finish（）行;可能没有被召唤 - 虽然我不是100％肯定的。

如果不知道你的意思，我不能告诉你更多不会运行 - 不会编译？给出运行时异常？只是黑屏？

编辑：您还在onPause方法中添加了列表ener - 这将不会被调用... 此代码将减少错误并提高效率：

package com.unicorn.test.whee;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;


public class SplashScreenPear extends Activity {

ImageView pearfade;
/** Called when the activity is first created. */

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.pear);
    ImageView pearfade = (ImageView) findViewById(R.id.pearish);
}

private void startAnimating(){

 Animation pearfadeact = AnimationUtils.loadAnimation(this, R.anim.fadein);
 pearfadeact.setAnimationListener(new AnimationListener() {

   public void onAnimationEnd(Animation animation) {
             // The animation has ended, transition to the Main Menu screen
             startActivity(new Intent(SplashScreenPear.this, Unicorn.class));
             SplashScreenPear.this.finish();
         }

         public void onAnimationRepeat(Animation animation) {
         }

         public void onAnimationStart(Animation animation) {
         }
     });
     pearfade.startAnimation(pearfadeact);

}

 @Override
 protected void onPause() {
  super.onPause();
  pearfade.clearAnimation(); 
 }
 @Override
 protected void onResume() {
     super.onResume();
     startAnimating();
 }

Android应用无法打开

1 个答案: