WebActivity.java

package com.lcodecore.twinklingrefreshlayout;

import android.annotation.SuppressLint;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.webkit.WebView;

import com.lcodecore.tkrefreshlayout.header.progresslayout.ProgressLayout;
import com.lcodecore.tkrefreshlayout.RefreshListenerAdapter;
import com.lcodecore.tkrefreshlayout.TwinklingRefreshLayout;

public class WebActivity extends AppCompatActivity {

    private WebView mWebView;

    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web);

        TwinklingRefreshLayout refreshLayout = (TwinklingRefreshLayout) findViewById(R.id.refreshLayout);
        ProgressLayout header = new ProgressLayout(this);
        refreshLayout.setHeaderView(header);
        refreshLayout.setFloatRefresh(true);
        refreshLayout.setOverScrollRefreshShow(false);
        refreshLayout.setHeaderHeight(140);
        refreshLayout.setMaxHeadHeight(240);
        refreshLayout.setOverScrollHeight(200);
        refreshLayout.setEnableLoadmore(false);
        header.setColorSchemeResources(R.color.Blue, R.color.Orange, R.color.Yellow, R.color.Green);
//        header.setColorSchemeColors(0xff4674e7,0xff0ba62c);

        mWebView = (WebView) findViewById(R.id.webView);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.loadUrl("https://dribbble.com/shots");

        refreshLayout.startRefresh();
        refreshLayout.setOnRefreshListener(new RefreshListenerAdapter() {
            @Override
            public void onRefresh(final TwinklingRefreshLayout refreshLayout) {
                new Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        refreshLayout.finishRefreshing();
                    }
                }, 4000);
            }
        });
    }

    @Override
    protected void onDestroy() {
        destroyWebView();
        super.onDestroy();
    }

    /**
     * 解决WebView持有mContext导致的内存泄漏问题
     */
    private void destroyWebView() {
        if (mWebView != null) {
            ViewParent parent = mWebView.getParent();
            if (parent != null) ((ViewGroup) parent).removeView(mWebView);
            mWebView.stopLoading();
            mWebView.getSettings().setJavaScriptEnabled(false);
            mWebView.clearHistory();
            mWebView.clearView();
            mWebView.removeAllViews();
            try {
                mWebView.destroy();
            } catch (Throwable e) {
            }
        }
    }
}