如何从我的应用程序打开 Android 的 web 浏览器的 URL？
How to open an URL from code in the built-in web browser rather than within my application?
I tried this:
try {
Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(download_link));
startActivity(myIntent);
} catch (ActivityNotFoundException e) {
Toast.makeText(this, "No application can handle this request."
+ " Please install a webbrowser", Toast.LENGTH_LONG).show();
e.printStackTrace();
}
but I got an Exception:
No activity found to handle Intent{action=android.intent.action.VIEW data =www.google.com
转载于:https://stackoverflow.com/questions/2201917/how-can-i-open-a-url-in-androids-web-browser-from-my-application
Try this:
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
startActivity(browserIntent);
That works fine for me.
As for the missing "http://" I'd just do something like this:
if (!url.startsWith("http://") && !url.startsWith("https://"))
url = "http://" + url;
I would also probably pre-populate your EditText that the user is typing a URL in with "http://".
other option In Load Url in Same Application using Webview
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
Try this:
Uri uri = Uri.parse("https://www.google.com");
startActivity(new Intent(Intent.ACTION_VIEW, uri));
or if you want then web browser open in your activity then do like this:
WebView webView = (WebView) findViewById(R.id.webView1);
WebSettings settings = webview.getSettings();
settings.setJavaScriptEnabled(true);
webView.loadUrl(URL);
and if you want to use zoom control in your browser then you can use:
settings.setSupportZoom(true);
settings.setBuiltInZoomControls(true);
If you want to show user a dialogue with all browser list, so he can choose preferred, here is sample code:
private static final String HTTPS = "https://";
private static final String HTTP = "http://";
public static void openBrowser(final Context context, String url) {
if (!url.startsWith(HTTP) && !url.startsWith(HTTPS)) {
url = HTTP + url;
}
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
context.startActivity(Intent.createChooser(intent, "Choose browser"));// Choose browser is arbitrary :)
}
A short code version...
if (!strUrl.startsWith("http://") && !strUrl.startsWith("https://")){
strUrl= "http://" + strUrl;
}
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(strUrl)));
You can also go this way
In xml :
<?xml version="1.0" encoding="utf-8"?>
<WebView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
In java code :
public class WebViewActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
}
}
In Manifest dont forget to add internet permission...
Within in your try block,paste the following code,Android Intent uses directly the link within the URI(Uniform Resource Identifier) braces in order to identify the location of your link.
You can try this:
Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
startActivity(myIntent);
Just like the solutions other have written (that work fine), I would like to answer the same thing, but with a tip that I think most would prefer to use.
In case you wish the app you start to open in a new task, indepandant of your own, instead of staying on the same stack, you can use this code:
final Intent intent=new Intent(Intent.ACTION_VIEW,Uri.parse(url));
intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY|Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
startActivity(intent);
a common way to achieve this is with the next code:
String url = "http://www.stackoverflow.com";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
that could be changed to a short code version ...
Intent intent = new Intent(Intent.ACTION_VIEW).setData(Uri.parse("http://www.stackoverflow.com"));
startActivity(intent);
or :
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.stackoverflow.com"));
startActivity(intent);
the shortest! :
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.stackoverflow.com")));
happy coding!
Intent getWebPage = new Intent(Intent.ACTION_VIEW, Uri.parse(MyLink));
startActivity(getWebPage);
String url = "http://www.example.com";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
Simple, website view via intent,
Intent viewIntent = new Intent("android.intent.action.VIEW", Uri.parse("http://www.yoursite.in"));
startActivity(viewIntent);
use this simple code toview your website in android app.
Add internet permission in manifest file,
<uses-permission android:name="android.permission.INTERNET" />
Simple Answer
You can see the official sample from Android Developer.
/**
* Open a web page of a specified URL
*
* @param url URL to open
*/
public void openWebPage(String url) {
Uri webpage = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW, webpage);
if (intent.resolveActivity(getPackageManager()) != null) {
startActivity(intent);
}
}
How it works
Please have a look at the constructor of Intent:
public Intent (String action, Uri uri)
You can pass android.net.Uri instance to the 2nd parameter, and a new Intent is created based on the given data url.
And then, simply call startActivity(Intent intent) to start a new Activity, which is bundled with the Intent with the given URL.
Do I need the if check statement?
Yes. The docs says:
If there are no apps on the device that can receive the implicit intent, your app will crash when it calls startActivity(). To first verify that an app exists to receive the intent, call resolveActivity() on your Intent object. If the result is non-null, there is at least one app that can handle the intent and it's safe to call startActivity(). If the result is null, you should not use the intent and, if possible, you should disable the feature that invokes the intent.
Bonus
You can write in one line when creating the Intent instance like below:
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
Check whether your url is correct. For me there was an unwanted space before url.
Webview can be used to load Url in your applicaion. URL can be provided from user in text view or you can hardcode it.
Also don't forget internet permissions in AndroidManifest.
String url="http://developer.android.com/index.html"
WebView wv=(WebView)findViewById(R.id.webView);
wv.setWebViewClient(new MyBrowser());
wv.getSettings().setLoadsImagesAutomatically(true);
wv.getSettings().setJavaScriptEnabled(true);
wv.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
wv.loadUrl(url);
private class MyBrowser extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
Basic Introduction:
https:// is using that one into the "code" so that no one in between can read them. This keeps your information safe from hackers.
http:// is using just sharing purpose, it's not secured.
About Your Problem:
XML designing:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.sridhar.sharedpreferencesstackoverflow.MainActivity">
<LinearLayout
android:orientation="horizontal"
android:background="#228b22"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp">
<Button
android:id="@+id/normal_search"
android:text="secure Search"
android:onClick="secure"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<Button
android:id="@+id/secure_search"
android:text="Normal Search"
android:onClick="normal"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_weight="9"
android:id="@+id/button_container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:orientation="horizontal">
<WebView
android:id="@+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
Activity Designing:
public class MainActivity extends Activity {
//securely open the browser
public String Url_secure="https://www.stackoverflow.com";
//normal purpouse
public String Url_normal="https://www.stackoverflow.com";
WebView webView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView=(WebView)findViewById(R.id.webView1);
}
public void secure(View view){
webView.setWebViewClient(new SecureSearch());
webView.getSettings().setLoadsImagesAutomatically(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.loadUrl(Url_secure);
}
public void normal(View view){
webView.setWebViewClient(new NormalSearch());
webView.getSettings().setLoadsImagesAutomatically(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.loadUrl(Url_normal);
}
public class SecureSearch extends WebViewClient{
@Override
public boolean shouldOverrideUrlLoading(WebView view, String Url_secure) {
view.loadUrl(Url_secure);
return true;
}
}
public class NormalSearch extends WebViewClient{
@Override
public boolean shouldOverrideUrlLoading(WebView view, String Url_normal) {
view.loadUrl(Url_normal);
return true;
}
}
}
Android Manifest.Xml permissions:
<uses-permission android:name="android.permission.INTERNET"/>
You face Problems when implementing this:
- getting The Manifest permissions
- excess space's between url
- Check your url's correct or not
Chrome custom tabs are now available:
The first step is adding the Custom Tabs Support Library to your build.gradle file:
dependencies {
...
compile 'com.android.support:customtabs:24.2.0'
}
And then, to open a chrome custom tab:
String url = "https://www.google.pt/";
CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
CustomTabsIntent customTabsIntent = builder.build();
customTabsIntent.launchUrl(this, Uri.parse(url));
For more info: https://developer.chrome.com/multidevice/android/customtabs
I think this is the best
openBrowser(context, "http://www.google.com")
Put below code into global class
public static void openBrowser(Context context, String url) {
if (!url.startsWith("http://") && !url.startsWith("https://"))
url = "http://" + url;
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
context.startActivity(browserIntent);
}
Based on the answer by Mark B and the comments bellow:
protected void launchUrl(String url) {
Uri uri = Uri.parse(url);
if (uri.getScheme() == null || uri.getScheme().isEmpty()) {
uri = Uri.parse("http://" + url);
}
Intent browserIntent = new Intent(Intent.ACTION_VIEW, uri);
if (browserIntent.resolveActivity(getPackageManager()) != null) {
startActivity(browserIntent);
}
}
If you want to do this with XML not programmatically you can use on your TextView:
android:autoLink="web"
android:linksClickable="true"
Try this..Worked for me!
public void webLaunch(View view) {
WebView myWebView = (WebView) findViewById(R.id.webview);
myWebView.setVisibility(View.VISIBLE);
View view1=findViewById(R.id.recharge);
view1.setVisibility(View.GONE);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadUrl("<your link>");
}
xml code :-
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webview"
android:visibility="gone"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
--------- OR------------------
String url = "";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
This way uses a method, to allow you to input any String instead of having a fixed input. This does save some lines of code if used a repeated amount of times, as you only need three lines to call the method.
public Intent getWebIntent(String url) {
//Make sure it is a valid URL before parsing the URL.
if(!url.contains("http://") && !url.contains("https://")){
//If it isn't, just add the HTTP protocol at the start of the URL.
url = "http://" + url;
}
//create the intent
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)/*And parse the valid URL. It doesn't need to be changed at this point, it we don't create an instance for it*/);
if (intent.resolveActivity(getPackageManager()) != null) {
//Make sure there is an app to handle this intent
return intent;
}
//If there is no app, return null.
return null;
}
Using this method makes it universally usable. IT doesn't have to be placed in a specific activity, as you can use it like this:
Intent i = getWebIntent("google.com");
if(i != null)
startActivity();
Or if you want to start it outside an activity, you simply call startActivity on the activity instance:
Intent i = getWebIntent("google.com");
if(i != null)
activityInstance.startActivity(i);
As seen in both of these code blocks there is a null-check. This is as it returns null if there is no app to handle the intent.
This method defaults to HTTP if there is no protocol defined, as there are websites who don't have an SSL certificate(what you need for an HTTPS connection) and those will stop working if you attempt to use HTTPS and it isn't there. Any website can still force over to HTTPS, so those sides lands you at HTTPS either way
Because this method uses outside resources to display the page, there is no need for you to declare the INternet permission. The app that displays the webpage has to do that
android.webkit.URLUtil has the method guessUrl(String) working perfectly fine (even with file:// or data://) since Api level 1 (Android 1.0). Use as:
String url = URLUtil.guessUrl(link);
// url.com -> http://url.com/ (adds http://)
// http://url -> http://url.com/ (adds .com)
// https://url -> https://url.com/ (adds .com)
// url -> http://www.url.com/ (adds http://www. and .com)
// http://www.url.com -> http://www.url.com/
// https://url.com -> https://url.com/
// file://dir/to/file -> file://dir/to/file
// data://dataline -> data://dataline
// content://test -> content://test
In the Activity call:
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(URLUtil.guessUrl(download_link)));
if (intent.resolveActivity(getPackageManager()) != null)
startActivity(intent);
Check the complete guessUrl code for more info.
The response of MarkB is right. In my case I'm using Xamarin, and the code to use with C# and Xamarin is:
var uri = Android.Net.Uri.Parse ("http://www.xamarin.com");
var intent = new Intent (Intent.ActionView, uri);
StartActivity (intent);
This information is taked from: https://developer.xamarin.com/recipes/android/fundamentals/intent/open_a_webpage_in_the_browser_application/
Okay,I checked every answer but what app has deeplinking with same URL that user want to use?
Today I got this case and answer is browserIntent.setPackage("browser_package_name");
e.g. :
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
browserIntent.setPackage("com.android.chrome"); // Whatever browser you are using
startActivity(browserIntent);
Thank you!
//OnClick Listener
@Override
public void onClick(View v) {
String webUrl = news.getNewsURL();
if(webUrl!="")
Utils.intentWebURL(mContext, webUrl);
}
//Your Util Method
public static void intentWebURL(Context context, String url) {
if (!url.startsWith("http://") && !url.startsWith("https://")) {
url = "http://" + url;
}
boolean flag = isURL(url);
if (flag) {
Intent browserIntent = new Intent(Intent.ACTION_VIEW,
Uri.parse(url));
context.startActivity(browserIntent);
}
}
Try this one OmegaIntentBuilder
OmegaIntentBuilder.from(context)
.web("Your url here")
.createIntentHandler()
.failToast("You don't have app for open urls")
.startActivity();