Develop Reference

How to disable Copy but enable Paste in a WebView?

I am using a WebView to show my website on my mobile Android app. I have disabled text selection in the WebView as I want to disable Copy.
I actually wish to allow the user to Paste a text but not Copy.
How can I do that please ?
public class MainActivity extends AppCompatActivity {
WebView webview;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
webview = findViewById(R.id.webView);
webview.setWebViewClient(new WebViewClient(){
public boolean shouldOverrideUrlLoading(WebView view, String url) {
String host = Uri.parse(url).getHost();
String domain = "www.google.fr";
if (host.equals(domain)) {
// This is my website, so do not override; let my WebView load the page
return false;
} else {
view.getContext().startActivity(
new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
return true;
}
}
});
webview.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
return true;
}
});
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webview.loadUrl("https://www.google.fr");
}
#Override
public void onBackPressed() {
if (webview.canGoBack()) {
webview.goBack();
}
}
}

As you know to copy a text you need to long press it to select.
So please add a longClickListener to the webview which will show anything else on long click instead of copying the text.
mWebView.setOnLongClickListener(new OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
return true;
}
});
mWebView.setLongClickable(false);
But this will also disable using PASTE so to paste content from clipboard. I will suggest add a small button beside it and add an onClickListener to it which will paste the copied content to wherever you want.
ClipboardManager mClipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
String pasteData = "";
if (!(mClipboard.hasPrimaryClip())) {
} else if (!(mClipboard.getPrimaryClipDescription().hasMimeType(MIMETYPE_TEXT_PLAIN))) {
} else {
ClipData.Item item = mClipboard.getPrimaryClip().getItemAt(0);
copiedText = item.getText().toString();
}

How to get URL from long click links in a webview?

I want to Create a Context Menu for web view in android. My problem is that I cant get the URL from the clicked link. I write this code for log the clicked link:
webView.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(final View v) {
WebView webView1 = (WebView) v;
WebView.HitTestResult hitTestResult = webView1.getHitTestResult();
Log.i("LinkClicked", hitTestResult.getExtra());
return false;
}
});
With this code, when long click on links in websites like stackoverflow, log like this:
https://stackoverflow.com/questions
everything is ok, but when long click on google search results, log like this:
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAMAAAAoLQ9TAAAAJFBMVEVHcEz/AAD/AAD/AAD/AAD/AAD/AAD/AAD/g4P/////KCj/7e0I8rGvAAAAB3RSTlMAT0g5Ggp+EilkVQAAAENJREFUGJVjYCAGsDAzggEzC5jLxo4E2BgYWNlRACsDM5jmggkwMzCBaQ5uqBATTICTk4OAAEILhqEY1mI4DNPphAAASIsES4gsgWgAAAAASUVORK5CYII=
it does not return a link. How I can fix this?

public class MainActivity extends AppCompatActivity {
WebView webView;
String URL1 = "https://stackoverflow.com/questions/60577403/how-to-get-url-from-long-click-links-in-a-webview/60577736?noredirect=1#comment107173847_60577736";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webview);
webView.clearHistory();
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setUseWideViewPort(true);
webView.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
}
public void onPageFinished(WebView view, String url) {
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
URL1 = url;
return super.shouldOverrideUrlLoading(view, url);
}
});
webView.loadUrl(URL1);
// Register the context menu for web view
registerForContextMenu(webView);
}
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
// Get the web view hit test result
final WebView.HitTestResult result = webView.getHitTestResult();
// If user long press on url
if (result.getType() == WebView.HitTestResult.ANCHOR_TYPE ||
result.getType() == WebView.HitTestResult.SRC_ANCHOR_TYPE) {
// Set the title for context menu
menu.setHeaderTitle("\t\t\t\t\t\t\t\t\t\t ◦ ◉ ⦿ Select ⦿ ◉ ◦ \t");
// Add an item to the menu
menu.add(0, 1, 0, " \t \t➤\t Show URL")
.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
String Pressed_url = result.getExtra();
Toast.makeText(MainActivity.this, "URL is:-" + Pressed_url,
Toast.LENGTH_SHORT).show();
return false;
}
});
}
}
}
Download Full Code from github.
Output

Android webview load Instagram URL but URL not changed

I have a simple webview app that loads my website. Everything is ok, but when the user clicks on the Instagram icon in bottom of the webpage, I want to open the Instagram app instead of loading the Instagram webpage.
I'm trying to achieve this with shouldOverrideUrlLoading function and webview.geturl("https://www.instagram.com/").
The problem is when the user clicks on the Instagram icon, the URL doesn't change and stays default "http://archclub.ir/".
public class MainActivity extends AppCompatActivity {
private WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://archclub.ir/login");
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
url = webView.getUrl();
Toast.makeText(MainActivity.this, webView.getUrl(), Toast.LENGTH_SHORT).show();
if (url.contains("https://www.instagram.com/")) {
Toast.makeText(MainActivity.this, "salam", Toast.LENGTH_SHORT).show();
webView.loadUrl("http://archclub.ir/");
}
return false;
}
});
}}
My problem is: When the user clicks on the Instagram icon on the website, the Toast.makeText(MainActivity.this, "salam", Toast.LENGTH_SHORT).show(); doesn't run.
I've checked this. I've debugged it. The problem is when the Instagram icon is clicked, the webview.geturl is equal to archclub.ir/login and doesn't change to instagram.com but the webview shows the Instagram page.

you were replacing the url over and over.
please replace this block of code instead of shouldOverrideUrlLoading method :
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// url = webView.getUrl(); // just omit this line
Toast.makeText(ali.this, webView.getUrl(), Toast.LENGTH_SHORT).show();
if (url.contains("https://www.instagram.com/")) {
Toast.makeText(ali.this, "salam", Toast.LENGTH_SHORT).show();
webView.loadUrl("http://archclub.ir/");
return true;
} else return false;
}
});

Android WebView error for high density screens

I have an Android application which uses a WebView to render web page. In css I have set to show everything twice as big for high density screens (like Nexus 7 2013). If I open the web page from the browser, Everything shows as it should. But when I run the app, everything is very small.
Is there any way to determine why the application WebView shows content for lower density screens but browser (Chrome) shows as it should!
Device: Nexus 7 2013

// I used this class and my code is working fime at my side please try this may be it will help you
public class WebViewActivity extends Activity {
private WebView webview;
private static final String TAG = "Main";
private ProgressDialog progressBar;
private TextView header_maintext;
private TextView headeroptiontext;
private RelativeLayout back;
private String url_string="http://www.google.com";
private String header_maintext_string="Your text";
/** Called when the activity is first created. */
#SuppressLint("SetJavaScriptEnabled") #Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.webview_layout);
webview = (WebView)findViewById(R.id.webview01);
header_maintext= (TextView)findViewById(R.id.header_maintext);
header_maintext.setText(header_maintext_string);
headeroptiontext = (TextView)findViewById(R.id.headeroptiontext);
headeroptiontext.setVisibility(View.GONE);
WebSettings settings = webview.getSettings();
settings.setJavaScriptEnabled(true);
webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
webview.getSettings().setLoadWithOverviewMode(true);
webview.getSettings().setUseWideViewPort(true);
back = (RelativeLayout) findViewById(R.id.back_layout);
back.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0)
{
// TODO Auto-generated method stub
if(webview.canGoBack() == true)
{
webview.goBack();
}
else
{
finish();
}
}
});
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
progressBar = ProgressDialog.show(WebViewActivity.this, "My application", "Loading...");
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
Log.i(TAG, "Finished loading URL: " +url);
if (progressBar.isShowing()) {
progressBar.dismiss();
}
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(WebViewActivity.this, "Oh no! " + description, Toast.LENGTH_SHORT).show();
alertDialog.setTitle("Error");
alertDialog.setMessage(description);
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
});
alertDialog.show();
}
});
webview.loadUrl(url_string);
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(event.getAction() == KeyEvent.ACTION_DOWN){
switch(keyCode)
{
case KeyEvent.KEYCODE_BACK:
if(webview.canGoBack() == true){
webview.goBack();
}else{
finish();
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
}

I think this article should help explain what you need to do: https://developers.google.com/chrome/mobile/docs/webview/pixelperfect
I suspect that the difference between Chrome and WebView boils down to the WebSettings that are being applied to the WebView.

How can i know what TextView was clickbale?

i have one doubt. I have an iteration of TextViews, and what i want is when i click in one TextView , i want stop the iteration and open a web, who can i know what TextView as been click on? i have this code:
Iterator<TextView> it = text.iterator();
while(it.hasNext()){
test = it.next();
test.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
}
});
// condition to stop the iteration when i click on TextView
}
And what i want is the condition to stop the iteration when i click on the TextView that i want see, i try using some methods that are in the TextView and don't work. Anyone can help me? I have the iteration of TextViews because i want to do this dynamic, and i don't know the TextView who as click, and i want to know what TextView was click to stop the iteration, because if i don't stop this, for example if i have 3 TextView they will open the same web.
Thanks and forgive my English

I'm not sure I understand you entirely but from what I understand you want to stop the Iteration when you click on a TextView.
So one way you can do it is. Declare a boolean property for this class to use to control the loop, in this case I called it isStop and initial value with false.
while(it.hasNext() && !isStop){
...
}
then
public void onClick(View v) {
isStop = true;
//mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
So when you click on a TextView the flag will turn off the loop.

The solution to what i wanted:
On the Activity i create this.
OnClickListener s = new OnClickListener()
{
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
text = (TextView) findViewById(v.getId());
mWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
}
};
Iterator<TextView> it = text.iterator();
while(it.hasNext())
{
text = it.next();
text.setOnClickListener(s);
}