Android自定义加载控件实现数据加载动画

本文实例为大家分享了android自定义加载控件，第一次小人跑动的加载效果眼前一亮，相比传统的prograssbar高大上不止一点,于是走起，自定义了控件loadingview去实现动态效果，可直接在xml中使用，具体实现如下

package com.*****.*****.widget;
 
import android.content.context;
import android.graphics.drawable.animationdrawable;
import android.util.attributeset;
import android.view.layoutinflater;
import android.view.view;
import android.widget.imageview;
import android.widget.relativelayout;
import android.widget.textview;
 
 
 
 
/**
 * created by xiaomu
 * 数据加载控件
 */
public class loadingview extends relativelayout {
  private context mcontext;
  private imageview loadingiv;
  private textview loadingtv;
 
  public loadingview(context context) {
    super(context);
    this.mcontext = context;
    initview();
  }
 
  public loadingview(context context, attributeset attrs) {
    super(context, attrs);
    this.mcontext = context;
    initview();
  }
 
  private void initview() {
    view view = layoutinflater.from(mcontext).inflate(r.layout.loading, null);
 
    loadingiv = (imageview) view.findviewbyid(r.id.loadingiv);
    loadingtv = (textview) view.findviewbyid(r.id.loadingtv);
 
    animationdrawable animationdrawable = (animationdrawable) loadingiv.getbackground();
    if (animationdrawable != null)
      animationdrawable.start();
 
    addview(view);
  }
 
  public imageview getloadingiv() {
    return loadingiv;
  }
 
  public textview getloadingtv() {
    return loadingtv;
  }
}

2. xml布局文件    

<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="wrap_content">
 
  <imageview
    android:id="@+id/loadingiv"
    android:layout_width="@dimen/dimen_144_dip"
    android:layout_height="@dimen/dimen_162_dip"
    android:layout_centerhorizontal="true"
    android:background="@anim/loading_anim" />
 
  <textview
    android:id="@+id/loadingtv"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignbottom="@+id/loadingiv"
    android:layout_centerhorizontal="true"
    android:gravity="center_horizontal"
    android:text="正在加载中..."
    android:textsize="15sp" />
 
</relativelayout>

3. loading_anim加载动画的xml    

<?xml version="1.0" encoding="utf-8"?>
<animation-list
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:oneshot="false">
  <item
    android:drawable="@drawable/progress_loading_image_01"
    android:duration="150" />
  <item
    android:drawable="@drawable/progress_loading_image_02"
    android:duration="150" />
</animation-list>  

以上就是本文的全部内容，希望对大家学习使用android自定义加载控件有所启发。