加载页面后隐藏进度栏 [英] hide progresbar after loading the page
本文介绍了加载页面后隐藏进度栏的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
progressbar 。 当页面加载到
WebView 中时，它不会消失任何人都可以帮助，因为我已经编写了代码，但它不起作用我有XML名称进度条（
android：id =@ + id / progressBar）我在互联网上搜索了很多解决方案，但没有任何帮助 public class GenerateQRCodeActivity extends Activity implements OnClickListener {
public static final Uri MailTo = null;
private long lastMoveEventTime = -1;
private int eventTimeInterval = 40;
private ProgressBar progressBar;
私有WebView mWebView;
@SuppressLint（SetJavaScriptEnabled）
private String LOG_TAG =GenerateQRCode;
protected Activity MyActivity;
@Override
public void onCreate（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）;
setContentView（R.layout.activity_main）;
progressBar =（ProgressBar）findViewById（R.id.progressBar）;
progressBar.setMax（100）;
ImageButton button2 =（ImageButton）findViewById（R.id.button2）;
ImageButton button3 =（ImageButton）findViewById（R.id.button3）;
button2.setOnClickListener（this）;
button3.setOnClickListener（this）;
mWebView =（WebView）findViewById（R.id.webview）;
mWebView.getSettings（）。setJavaScriptEnabled（true）;
mWebView.setWebChromeClient（new WebChromeClient（））;
WebSettings webSettings = mWebView.getSettings（）;
webSettings.setJavaScriptEnabled（true）;
mWebView.requestFocusFromTouch（）;
mWebView.getSettings（）。setRenderPriority（RenderPriority.HIGH）;
mWebView.getSettings（）。setCacheMode（WebSettings.LOAD_NO_CACHE）;
mWebView.setBackgroundColor（Color.parseColor（＃4dc3f1））;
if（Build.VERSION.SDK_INT> = 11）{
mWebView.setLayerType（WebView.LAYER_TYPE_SOFTWARE，null）;
}
mWebView.getSettings（）。setRenderPriority（WebSettings.RenderPriority.HIGH）;
mWebView.getSettings（）。setCacheMode（WebSettings.LOAD_NO_CACHE）;
webSettings.setDomStorageEnabled（true）;
mWebView.setWebViewClient（new WebViewClientDemo（））;
mWebView.setWebChromeClient（new WebChromeClientDemo（））;
mWebView.loadUrl（http://www.google.com/）;
mWebView.getSettings（）。setJavaScriptEnabled（true）;
mWebView.setWebViewClient（new HelloWebViewClient（））; $ a
getWindow（）。
}
私有类WebViewClientDemo扩展WebViewClient {
@Override
public boolean shouldOverrideUrlLoading（WebView view，String url）{
view.loadUrl（url）;
返回true;
}
@Override
public void onPageFinished（WebView view，String url）{
super.onPageFinished（view，url）;
progressBar.setVisibility（View.GONE）;
progressBar.setProgress（100）;
}
@Override
public void onPageStarted（WebView视图，String url，Bitmap favicon）{
super.onPageStarted（view，url，favicon）;
progressBar.setVisibility（View.GONE）;
progressBar.setProgress（0）;
}
}
私有类WebChromeClientDemo扩展WebChromeClient {
public void onProgressChanged（WebView view，int progress）{
progressBar.setProgress（progress）;
}
}
@Override
public boolean onKeyDown（int keyCode，KeyEvent event）{
if（（keyCode == KeyEvent.KEYCODE_BACK）&& mWebView .canGoBack（））{
mWebView.goBack（）;
返回true;
}
else {
finish（）;
}
return super.onKeyDown（keyCode，event）;
}
@Override
public boolean onCreateOptionsMenu（菜单菜单）{
return true;
}
解决方案
您可以使用这些行代码为
WebSettings settings = webView.getSettings（）;
settings.setJavaScriptEnabled（true）;
webView.setScrollBarStyle（View.SCROLLBARS_OUTSIDE_OVERLAY）;
webView.getSettings（）。setBuiltInZoomControls（true）;
webView.getSettings（）。setUseWideViewPort（true）;
webView.getSettings（）。setLoadWithOverviewMode（true）;
progressDialog = new ProgressDialog（ContestActivity.this）;
progressDialog.setMessage（Loading ...）;
progressDialog.show（）;
webView.setWebViewClient（new WebViewClient（）{
@Override
public boolean shouldOverrideUrlLoading（WebView view，String url）{
view.loadUrl（url）;
return true;
}
@Override
public void onPageFinished（WebView视图，String url）{
if（progressDialog.isShowing（））{
progressDialog.dismiss（）;
}
}
@Override
public void onReceivedError（WebView视图，int errorCode，String description，String failingUrl）{
Toast.makeText（ContestActivity.this，Error：+ description，Toast.LENGTH_SHORT）.show（）;
}
}）;
webView.loadUrl（你的URL这里）;
Hi everybody I have a problem with my progressbar.
it does not disappear when the page is loaded into WebView can anyone please help because I have prbiert the codes but it does not work
I have the XML name progressbar(android:id="@+id/progressBar") I have searched a lot in internet for a solution but nothing has helped
public class GenerateQRCodeActivity extends Activity implements OnClickListener{
public static final Uri MailTo = null;
private long lastMoveEventTime = -1;
private int eventTimeInterval = 40;
private ProgressBar progressBar;
private WebView mWebView;
@SuppressLint("SetJavaScriptEnabled")
private String LOG_TAG = "GenerateQRCode";
protected Activity MyActivity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
progressBar.setMax(100);
ImageButton button2 = (ImageButton) findViewById(R.id.button2);
ImageButton button3 = (ImageButton) findViewById(R.id.button3);
button2.setOnClickListener(this);
button3.setOnClickListener(this);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebChromeClient(new WebChromeClient());
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.requestFocusFromTouch();
mWebView.getSettings().setRenderPriority(RenderPriority.HIGH);
mWebView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
mWebView.setBackgroundColor(Color.parseColor("#4dc3f1"));
if (Build.VERSION.SDK_INT >= 11) {
mWebView.setLayerType(WebView.LAYER_TYPE_SOFTWARE, null);
}
mWebView.getSettings().setRenderPriority(WebSettings.RenderPriority.HIGH);
mWebView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
webSettings.setDomStorageEnabled(true);
mWebView.setWebViewClient(new WebViewClientDemo());
mWebView.setWebChromeClient(new WebChromeClientDemo());
mWebView.loadUrl("http://www.google.com/");
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebViewClient(new HelloWebViewClient());
getWindow().setFlags(WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED);
}
private class WebViewClientDemo extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progressBar.setVisibility(View.GONE);
progressBar.setProgress(100);
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressBar.setVisibility(View.GONE);
progressBar.setProgress(0);
}
}
private class WebChromeClientDemo extends WebChromeClient {
public void onProgressChanged(WebView view, int progress) {
progressBar.setProgress(progress);
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
else {
finish();
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
return true;
}
解决方案
You can use these lines of code for it
WebSettings settings = webView.getSettings();
settings.setJavaScriptEnabled(true);
webView.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setLoadWithOverviewMode(true);
progressDialog = new ProgressDialog(ContestActivity.this);
progressDialog.setMessage("Loading...");
progressDialog.show();
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
if (progressDialog.isShowing() ) {
progressDialog.dismiss();
}
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(ContestActivity.this, "Error:" + description, Toast.LENGTH_SHORT).show();
}
});
webView.loadUrl("YOUR URL HERE");
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