文字和動畫

Question

呃，我想在動畫播放後顯示我的文字。在這段代碼中，它同時執行動畫和文本，所以如何等到動畫播放完畢後才顯示文本？或者，如何在動畫播放之前隱藏文字？

package com.example.magic8ballers; 

import android.media.MediaPlayer; 
import android.os.Bundle; 
import android.app.Activity; 
import android.graphics.drawable.AnimationDrawable; 
import android.view.Menu; 
import android.view.View; 
import android.view.animation.Animation; 
import android.view.animation.AnimationUtils; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.TextView; 

public class Magic8Ballers extends Activity { 
MediaPlayer song; //song reference 
TextView answer; // TextView reference 
Button button; // Button reference 
Magic8BallersCode m8b; // M8B reference 
// Animation object 
Animation an; 


public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_magic8_ballers); 

    // associate answer with TextView object with id textView1 
    answer = (TextView)findViewById(R.id.textView1); 
    // associate button with Button object with id button 
    button = (Button)findViewById(R.id.button1); 
    button.setText("Shake It!"); 
    //Create new Magic8Ball object 
    m8b = new Magic8BallersCode(); 
    song = MediaPlayer.create(Magic8Ballers.this, R.raw.magic); 




    //Shake it button animation 
    Button button = (Button) findViewById(R.id.button1);//reference to the   
button that shakes it and provides prediction 
    final ImageView imgView = 
(ImageView)findViewById(R.id.imageView1);//reference to the animation image 

    //Music Buttons              
    Button btnSound = (Button) findViewById(R.id.button2);//reference to the 
button that turns on the song 
    Button btnSound2 = (Button) findViewById(R.id.button3);//reference to the  
button that turns off the song 

    //Animation 
    final Animation an = AnimationUtils.loadAnimation(Magic8Ballers.this, 
R.anim.animation); 

    //Button for animation 
    button.setOnClickListener(new View.OnClickListener() { 

    public void onClick(View v) { 

      imgView.startAnimation(an); 
      String prediction = m8b.getAnswer(); 
      // Set the label's text with the new prediction 
      answer.setText(prediction); 
     } 
    }); 

Answer 1

您可以試用setAnimationListener method。 「動畫監聽器接收來自動畫的通知，通知表示動畫相關的事件，例如動畫的結束或重複。」 - 「developer.android.com」。

• 例子：

  an.setAnimationListener(new AnimationListener() 
  
  { 
  
      public void onAnimationStart(Aninmation a){ 
       //Notifies the start of the animation. 
       } 
  
      public void onAnimationRepeat(Animation a){ 
       //Notifies the repetition of the animation. 
       } 
  
      public void onAnimationEnd(Animation a){ 
       //Notifies the end of the animation. 
       //show your text here 
      } 
  
  }); 
  

Answer 2

你需要添加一個動畫監聽器：動畫完成

an.setAnimationListener(new Animation.AnimationListener() { 

      public void onAnimationStart(Animation animation) { 
       // TODO Auto-generated method stub 

      } 

      public void onAnimationRepeat(Animation animation) { 
       // TODO Auto-generated method stub 

      } 

      public void onAnimationEnd(Animation animation) { 


       // ADD YOU TEXT HERE 
      } 
     }); 

播放後聽衆將您的文字。