如何在android studio中的兩個框架動畫之間添加延遲？

Question

我已經使用了2個動畫圖像視圖，並且我希望在這兩個動畫之間有一個延遲。 以下是MainActivity.java

public class MainActivity extends AppCompatActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     faded(); 
     faded2(); 
    } 
    public void faded() 
    { 
     ImageView img=(ImageView)findViewById(R.id.imageView2); 
     img.setBackgroundResource(R.drawable.fade); 
     AnimationDrawable ani=(AnimationDrawable)img.getBackground(); 
     ani.start(); 
    } 
    public void faded2() 
    { 
     ImageView img=(ImageView)findViewById(R.id.imageView3); 
     img.setBackgroundResource(R.drawable.fade2); 
     AnimationDrawable ani=(AnimationDrawable)img.getBackground(); 
     ani.start(); 
    } 
} 

the above code starts both the animation at same time. 
what should i do in order to get a delay between these two? 

我應該做的改變得到期望的結果？

Answer 1

如果您正在尋找在ImageViews褪色，您可以使用

//Initially set the alpha to 0 so we can't see it 
img1.setAlpha(0.0f); 
img2.setAlpha(0.0f); 

//Then call the animate() on them. Note the startDelay for the second. 
img1.animate().alpha(1.0f).setDuration(300).start(); 
img2.animate().alpha(1.0f).setDuration(300).setStartDelay(200).start();