Android自定义加载控件实现数据加载动画

释放双眼,带上耳机,听听看~!

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>

 

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