Android基础动画之--即时预约等待加载过程

思路：两张一样的图片从不同的点同时向一个方向移动

效果图如下：

public class CallActivity extends BaseActivity implements Animation.AnimationListener{

    private static final String TAG = "CallActivity";

    @BindView(R.id.iv_one)
    ImageView iv_one;
    @BindView(R.id.iv_two)
    ImageView iv_two;

    private TranslateAnimation animationFirst;
    private TranslateAnimation animationSecond;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_call);

        ButterKnife.bind(this);

        initData();

        startAnimation();
    }

    private void initData() {
        animationFirst = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,1f,
                Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f);
        animationFirst.setDuration(5000);
        animationFirst.setInterpolator(new LinearInterpolator());
        animationFirst.setAnimationListener(this);
        animationSecond = new TranslateAnimation(Animation.RELATIVE_TO_SELF,-1.0f,Animation.RELATIVE_TO_SELF,0f,
                Animation.RELATIVE_TO_SELF,0f,Animation.RELATIVE_TO_SELF,0f);
        animationSecond.setDuration(5000);
        animationSecond.setInterpolator(new LinearInterpolator());
        animationSecond.setAnimationListener(this);
    }

    private void startAnimation() {
        iv_one.startAnimation(animationFirst);
        iv_two.startAnimation(animationSecond);
    }


    @Override
    public void onAnimationStart(Animation animation) {

    }

    @Override
    public void onAnimationEnd(Animation animation) {
        startAnimation();
    }

    @Override
    public void onAnimationRepeat(Animation animation) {

    }

}

布局文件（加载动画部分）

<RelativeLayout
        android:id="@+id/ll_progress"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp5"
        >
        <ImageView
            android:id="@+id/iv_one"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:src="@drawable/scroll_img"
            android:scaleType="fitXY"

            />
        <ImageView
            android:id="@+id/iv_two"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:src="@drawable/scroll_img"
            android:scaleType="fitXY"
            />
    </RelativeLayout>

最后吐槽有一个坑点，如果父布局用LinearLayout，则只有一个imageview有动画，用了RelativeLayout可以了，不知什么问题，有知道的可以告知一下，感激不尽