public class BaseWebView extends WebView {
protected static boolean DISABLE_SSL_CHECK_FOR_TESTING = false;
private LoadingDialog mLoadingDialog;
private boolean mShowLoading;
private ResultResolve mResultResolve;
private String mTitle;
public BaseWebView(Context context) {
super(context);
initSetting();
initWebViewClient();
initWebChromeClient();
}
public BaseWebView(Context context, AttributeSet attrs) {
super(context, attrs);
initSetting();
initWebViewClient();
initWebChromeClient();
}
public BaseWebView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initSetting();
initWebViewClient();
initWebChromeClient();
}
private void initSetting() {
//声明WebSettings子类
WebSettings webSettings = this.getSettings();
//如果访问的页面中要与Javascript交互，则webview必须设置支持Javascript
webSettings.setJavaScriptEnabled(true);
//设置自适应屏幕，两者合用
webSettings.setUseWideViewPort(true); //将图片调整到适合webview的大小
webSettings.setLoadWithOverviewMode(true); // 缩放至屏幕的大小
//缩放操作
webSettings.setSupportZoom(true); //支持缩放，默认为true。是下面那个的前提。
webSettings.setBuiltInZoomControls(true); //设置内置的缩放控件。若为false，则该WebView不可缩放
webSettings.setDisplayZoomControls(false); //隐藏原生的缩放控件
//其他细节操作
webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE); //关闭webview中缓存
webSettings.setAllowFileAccess(true); //设置可以访问文件
webSettings.setJavaScriptCanOpenWindowsAutomatically(true); //支持通过JS打开新窗口
webSettings.setLoadsImagesAutomatically(true); //支持自动加载图片
webSettings.setDefaultTextEncodingName("utf-8");//设置编码格式
}
private void initWebViewClient() {
this.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
LogUtil.i("webview url = "+url);
if(url.startsWith("alipays:") || url.startsWith("alipay")) {
try {
// mShowLoading = false;
getContext().startActivity(new Intent("android.intent.action.VIEW", Uri.parse(url)));
} catch (Exception e) {
new AlertDialog.Builder(getContext())
.setMessage("未检测到支付宝客户端，请安装后重试。")
.setPositiveButton("立即安装", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Uri alipayUrl = Uri.parse("https://d.alipay.com");
getContext().startActivity(new Intent("android.intent.action.VIEW", alipayUrl));
}
}).setNegativeButton("取消", null).show();
}
return true;
}else if(url.startsWith("weixin:") ){
try {
// mShowLoading = false;
getContext().startActivity(new Intent("android.intent.action.VIEW", Uri.parse(url)));
} catch (Exception e) {
new AlertDialog.Builder(getContext())
.setMessage("未检测到微信客户端，请安装后重试。").setNegativeButton("确定", null).show();
}
return true;
}else if(url.startsWith("mc-sdk:")){
if(mResultResolve != null){
mResultResolve.handle(url);
}
}else if(url.contains("wx.tenpay.com")){
LogUtil.i("外部浏览器："+url);
return super.shouldOverrideUrlLoading(view, url);
}else{
//内部浏览器打开网页
//mShowLoading = true;
view.loadUrl(url);
}
return true;
}
//网页开始加载
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
if(mShowLoading){
LoadingDialog.Builder builder = new LoadingDialog.Builder(getContext());
mLoadingDialog = builder.create();
mLoadingDialog.show();
}
}
//网页加载完毕
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if(mLoadingDialog !=null && mLoadingDialog.isShowing()){
mLoadingDialog.dismiss();
}
}
//https验证错误，还继续加载网页
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
if(mLoadingDialog !=null && mLoadingDialog.isShowing()){
mLoadingDialog.dismiss();
}
if (DISABLE_SSL_CHECK_FOR_TESTING) {
handler.cancel();
} else {
handler.proceed();
}
}
});
}
private void initWebChromeClient() {
this.setWebChromeClient(new WebChromeClient(){
//获取网页标题
@Override
public void onReceivedTitle(WebView view, String title) {
super.onReceivedTitle(view, title);
mTitle = title;
LogUtil.i("webview title = "+title);
EventBus.getDefault().post(new TitleEvent(mTitle));
}
//获取网页加载进度
@Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
}
});
}
public boolean isShowLoading() {
return mShowLoading;
}
public void setShowLoading(boolean mShowLoading) {
this.mShowLoading = mShowLoading;
}
public String getTitle() {
return mTitle;
}
public void setTitle(String mTitle) {
this.mTitle = mTitle;
}
public ResultResolve getResultResolve() {
return mResultResolve;
}
public void setResultResolve(ResultResolve resultResolve) {
this.mResultResolve = resultResolve;
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KEYCODE_BACK) && this.canGoBack()) {
this.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
public interface ResultResolve{
void handle(String url);
}
public void onDestory(){
//清除网页缓存
this.clearHistory();
this.clearCache(true);
this.loadUrl("about:blank");
this.pauseTimers();
this.stopLoading();
this.destroy();
}
}
