android image加载中等待动画

在布局中添加一个ImageViw和一个EditText。

<ImageView
      android:id="@+id/loading_imageView_info"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_gravity="center"
      android:background="@anim/loading" />

  <EditText
      android:id="@+id/loading_editText_info"
      android:layout_width="0dp"
      android:layout_height="0dp" />

<pre class="java" name="code">  private ImageView loadingImageView ;
    private EditText loadingEditText;
    private AnimationDrawable anim;</pre>

loadingImageView =(ImageView)findViewById(R.id.loading_imageView_info);
    loadingEditText =(EditText)findViewById(R.id.loading_editText_info);
    loadingEditText.setInputType(InputType.TYPE_NULL);//屏蔽软键盘

    anim = (AnimationDrawable) loadingImageView.getBackground();
    loadingEditText.setOnFocusChangeListener(editSetOnFocus);

/**
         * 当输入框获取焦点，则运行动画
         */
        private  OnFocusChangeListener editSetOnFocus = new OnFocusChangeListener() {

            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                // TODO Auto-generated method stub
                anim.start();
                Log.i("text", "执行等待动画。。。。。。。。");
            }
        };

    当程序获取到数据一般情况是在hanlder中发送消息通知动画停止，并隐藏当前的控件

  

anim.stop();
loadingImageView.setVisibility(View.GONE);

anim动画在XML中定义，代码如下：

<?xml version="1.0" encoding="UTF-8"?>
<animation-list android:oneshot="false" xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:duration="150" android:drawable="@drawable/load1" />
    <item android:duration="150" android:drawable="@drawable/load2" />
    <item android:duration="150" android:drawable="@drawable/load3" />
    <item android:duration="150" android:drawable="@drawable/load4" />
    <item android:duration="150" android:drawable="@drawable/load5" />
    <item android:duration="150" android:drawable="@drawable/load6" />

</animation-list>