[Android]自定义图案下拉刷新

参考地址

https://github.com/liaohuqiu/android-Ultra-Pull-To-Refresh
http://www.jianshu.com/p/9daaa87045d0

导包

compile 'com.android.support:appcompat-v7:24.2.1'//v7包
compile 'com.android.support:design:24.2.1'//包含recyclerView
compile 'in.srain.cube:ultra-ptr:1.0.11'//框架android-Ultra-Pull-To-Refresh

refresh_header.xml

下拉刷新header

import android.content.Context;
import android.graphics.drawable.AnimationDrawable;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;

import in.srain.cube.views.ptr.PtrFrameLayout;
import in.srain.cube.views.ptr.PtrUIHandler;
import in.srain.cube.views.ptr.indicator.PtrIndicator;

/**
 *
 * Created by TONG on 2017/3/21.
 */

public class MyRefreshHeader extends FrameLayout implements PtrUIHandler {

    /**
     * 提醒文本
     */
    private TextView mTvRemind;

    /**
     * logo
     */
    private ImageView mIvMan;

    /**
     * 状态识别
     */
    private int mState;

    /**
     * 重置
     * 准备刷新
     * 开始刷新
     * 结束刷新
     */
    public static final int STATE_RESET = -1;
    public static final int STATE_PREPARE = 0;
    public static final int STATE_BEGIN = 1;
    public static final int STATE_FINISH = 2;
    public static final int MARGIN_RIGHT = 100;

    /**
     * 动画
     */
    private AnimationDrawable mAnimation;


    public MyRefreshHeader(Context context) {
        super(context);
        initView();
    }

    public MyRefreshHeader(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView();
    }

    public MyRefreshHeader(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView();
    }

    /**
     * 初始化view
     */
    private void initView() {
        View view = LayoutInflater.from(getContext()).inflate(R.layout.refresh_header, this, false);
        mTvRemind = (TextView) view.findViewById(R.id.tv_remain);
        mIvMan = (ImageView) view.findViewById(R.id.iv_header);
        addView(view);
    }

    @Override
    public void onUIReset(PtrFrameLayout frame) {
        mState = STATE_RESET;
    }

    @Override
    public void onUIRefreshPrepare(PtrFrameLayout frame) {
        mState = STATE_PREPARE;
    }
    @Override
    public void onUIRefreshBegin(PtrFrameLayout frame) {
        mState = STATE_BEGIN;
        //开启动画
        mIvMan.setBackgroundResource(R.drawable.runningman);
        mAnimation = (AnimationDrawable) mIvMan.getBackground();
        if (!mAnimation.isRunning()) {
            mAnimation.start();
        }
    }

    @Override
    public void onUIRefreshComplete(PtrFrameLayout frame) {
        mState = STATE_FINISH;
        //停止动画
        if (mAnimation.isRunning()) {
            mAnimation.stop();
        }
        mIvMan.setBackgroundResource(R.mipmap.ic_1);
    }

    @Override
    public void onUIPositionChange(PtrFrameLayout frame, boolean isUnderTouch, byte status, PtrIndicator ptrIndicator) {
        //处理提醒字体
        switch (mState) {
            case STATE_PREPARE:
                //logo设置
                mIvMan.setAlpha(ptrIndicator.getCurrentPercent());
                LayoutParams mIvManLayoutParams = (LayoutParams) mIvMan.getLayoutParams();
                if (ptrIndicator.getCurrentPercent() <= 1) {
                    mIvMan.setScaleX(ptrIndicator.getCurrentPercent());
                    mIvMan.setScaleY(ptrIndicator.getCurrentPercent());
                    int marginRight = (int) (MARGIN_RIGHT - MARGIN_RIGHT * ptrIndicator.getCurrentPercent());
                    mIvManLayoutParams.setMargins(0, 0, marginRight, 0);
                    mIvMan.setLayoutParams(mIvManLayoutParams);
                }
                if (ptrIndicator.getCurrentPercent() < 1.2) {
                    mTvRemind.setText("下拉刷新...");
                } else {
                    mTvRemind.setText("松开刷新...");
                }
                break;
            case STATE_BEGIN:
                mTvRemind.setText("更新中...");
                break;
            case STATE_FINISH:
                mTvRemind.setText("加载完成...");
                break;
        }
    }
}

动画效果runningman.xml

MyRefreshLayout

import android.content.Context;
import android.util.AttributeSet;
import in.srain.cube.views.ptr.PtrFrameLayout;

/**
 * Created by TONG on 2017/3/21.
 */

public class MyRefreshLayout   extends PtrFrameLayout {
    /**
     * headerView
     */
    MyRefreshHeader mHeaderView;
    public MyRefreshLayout(Context context) {
        super(context);
        initView();
    }
    public MyRefreshLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView();
    }
    public MyRefreshLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initView();
    }
    /**
     * 初始化view
     */
    private void initView() {
        mHeaderView = new MyRefreshHeader(getContext());
        setHeaderView(mHeaderView);
        addPtrUIHandler(mHeaderView);
    }
}

activity_main.xml

MyAdapter

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import java.util.List;

/**
 * Created by Administrator on 2016/12/5.
 */

public class MyAdapter extends RecyclerView.Adapter {

    /**
     * 数据
     */
    private List