Setting default browser for activity programmatically - android

I'm developing an android app and among other functionality I need to open some urls in external web browser. Can I programmatically set a default application for that, so the user won't be able to choose from the list of available browsers? I mean, I want to set default browser only for my app but not for the whole operating system.

Yes, for this you can force your application to always open native android browser only. For this you have to identify the launching Activity of Browser application, something like this:
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.google.android.browser","com.google.android.browser.BrowserActivity"));
intent.setAction("android.intent.action.VIEW");
intent.addCategory("android.intent.category.BROWSABLE");
Uri uri = Uri.parse(url);
intent.setData(uri);
try
{
startActivity(intent);
}
catch (Exception e)
{
e.printStackTrace();
}

You can use .setPackage for the intent: http://developer.android.com/reference/android/content/Intent.html#setPackage(java.lang.String) . Call it with the browser's package name (defined in its manifest, package attribute).
I'm using something similar for firing up the Google+ application for sharing a string:
Intent shareIntent = ShareCompat.IntentBuilder.from(getActivity())
.setText("Dummy string to share")
.setType("text/plain")
.getIntent()
.setPackage("com.google.android.apps.plus");
startActivity(shareIntent);
In my example, "com.google.android.apps.plus" is the package name for the Google+ application.

Sharedpreference for Browser class is "MODE_private" , so we can't access the home_page changing steps directly programatically,
iff we want to do, we should do through Browser.java opensource code and we should get some idea from there itself.

Related

How to open both WhatsApp and GB-Whatsapp using an Intent in your Android App

I want to open chooser for both whatsapp and gb-whatsapp so the user can choose any of one from them. This code is only opening whatsapp only.
Intent intentWhatsapp = new Intent(Intent.ACTION_VIEW);
String url = "https://chat.whatsapp.com/JPJSkaiqmDu5gLKqUPAfMM";
intentWhatsapp.setData(Uri.parse(url));
intentWhatsapp.setPackage("com.whatsapp");
startActivity(intentWhatsapp);
To handle business whatsapp, GB-Whatsapp and normal whatsapp, the url scheme intent needs to be used, since the normal method of using package "com.whatsapp" only works for normal whatsapp.
Here's the code sample to handle gb, normal and business whatsapp :
try {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse("whatsapp://send?phone="+ "+92300xxxxxxx" +"&text=" + URLEncoder.encode("Message\n", "UTF-8")));
context.startActivity(i);
} catch (Exception e){
Toast.makeText(context, "Whatsapp not installed!", Toast.LENGTH_LONG).show();
}
Simple answer you can't.
More detailed answer: You can only create an Intent targeting one specific app. I would suggest building a dialogue inside your app, showing the app images of whatsapp and gb-whatsapp, and then putting specific intents behind those two images so that it "looks" like the Android chooser.

Android - Open a file with specific app using intent

How can I open a .pdf file with a specific app like adobe reader using an intent?
Something like:
Intent intent = getPackageManager().getLaunchIntentForPackage("com.package.name");
intent.setData(Uri.fromFile(file)); //? - set file to open
startActivity(intent);
I don't want to select an app from a list, the intent must open the file using the specified app.
If you want to open other application then you have to give package name.
Check below code.
try {
Intent mIntent = new Intent(Intent.ACTION_VIEW);
mIntent.setDataAndType(Uri.fromFile(file), "application/pdf");
mIntent.setPackage("com.adobe.reader");
startActivity(Intent.createChooser(mIntent, "View PDF"));
} catch (Exception e) {
//App not found
e.printStackTrace();
}
If you want to open anyother PDF Viewer app then just change PackageName Instead of "com.adobe.reader"
You can use this answer on another thread. It is for ACTION_SEND, but you can adapt it for ACTION_VIEW in your case.

Open page in Facebook,Twitter and Google Plus app from other app - Android

I'm working on an application where I need to integrate the social functionality of the different social networks: Facebook, Twitter, Google+.
For now, in Facebook and Twitter i'm recognized if the user has a native application and if he does, I'm opening it and show him my fan page.
For Twitter I use the next code:
try {
Intent intent = new Intent(Intent.ACTION_VIEW,
Uri.parse("twitter://user?screen_name=[user_name]"));
startActivity(intent);
}catch (Exception e) {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("https://twitter.com/#!/[user_name]")));
}
And for Facebook the next code:
try{
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("fb://profile/" + PROFILE_FACEBOOK_APP_ID));
startActivity(intent);
}catch(Exception e){
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.facebook.com/UserNamePage")));
}
Now I want to do the same thing for Google+. I saw that I can browse to my fan page with the next Url https://plus.google.com/MY_PAGE_ID/, but it keep asking me if I want to open it with Google+ application or with the browser, and I want that he will open it with the application automatically, without asking the user.
Is there a simple way to do this?
Thanks.
Found a solution:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setClassName("com.google.android.apps.plus",
"com.google.android.apps.plus.phone.UrlGatewayActivity");
intent.putExtra("customAppUri", "FAN_PAGE_ID");
startActivity(intent);
I think this is quite safe, because we do not need to specify the component, just the google+ app package name:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("https://plus.google.com/[Google+ID]/"));
intent.setPackage("com.google.android.apps.plus"); // don't open the browser, make sure it opens in Google+ app
startActivity(intent);
Unknown if google plus needs some other information in the Intent but as general Android solution you can explicitly set the target. You will need the package name of google+.
More info here: http://developer.android.com/reference/android/content/Intent.html#setPackage%28java.lang.String%29
For example:
Intent.setPackage("com.google.android.apps.plus"); //Don't know the exact package name

Android - Call default browser with and redirect to a designated url

Hi
I want to write an app to call default browser and redirect to a designated url.
Any suggestion to 1)call the default browser, 2)redirect to a designated url.
Thanks
you just want to launch an ACTION_VIEW intent with the Uri of the webpage as your data element :
Intent httpIntent = new Intent(Intent.ACTION_VIEW);
httpIntent.setData(Uri.parse("http://www.bbc.co.uk"));
startActivity(httpIntent);
To open the default browser use an Intent with the action VIEW. To tell the browser which page to load us the data-part of the Intent.
Example:
Intent browse = new Intent(Intent.ACTION_VIEW, Uri.parse("http://stackoverflow.com"));
startActivity(browse);
Since this is a basic task in Android you might want to read some basics about Intents in Android.

Android Intent for Twitter application

Is it possible to show a list of applications (with intent.createChooser) that only show me my twitter apps on my phone (so htc peep (htc hero) or twitdroid). I have tried it with intent.settype("application/twitter") but it doesnt find any apps for twitter and only shows my mail apps.
Thank you,
Wouter
I'm posting this because I haven't seen a solution yet that does exactly what I want.
This primarily launches the official Twitter app, or if that is not installed, either brings up a "Complete action using..." dialog (like this) or directly launches a web browser.
For list of different parameters in the twitter.com URL, see the Tweet Button docs.
Remember to URL encode the parameter values. (This code is specifically for tweeting a URL; if you don't want that, just leave out the url param.)
// Create intent using ACTION_VIEW and a normal Twitter url:
String tweetUrl = String.format("https://twitter.com/intent/tweet?text=%s&url=%s",
urlEncode("Tweet text"),
urlEncode("https://www.google.fi/"));
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(tweetUrl));
// Narrow down to official Twitter app, if available:
List<ResolveInfo> matches = getPackageManager().queryIntentActivities(intent, 0);
for (ResolveInfo info : matches) {
if (info.activityInfo.packageName.toLowerCase().startsWith("com.twitter")) {
intent.setPackage(info.activityInfo.packageName);
}
}
startActivity(intent);
(URL encoding is cleaner if you have a little utility like this somewhere, e.g. "StringUtils".)
public static String urlEncode(String s) {
try {
return URLEncoder.encode(s, "UTF-8");
}
catch (UnsupportedEncodingException e) {
Log.wtf(TAG, "UTF-8 should always be supported", e);
throw new RuntimeException("URLEncoder.encode() failed for " + s);
}
}
For example, on my Nexus 7 device, this directly opens the official Twitter app:
If official Twitter app is not installed and user either selects Chrome or it opens automatically (as the only app which can handle the intent):
The solutions posted before, allow you to post directly on your first twitter app. To show a list of twitters app (if there are more then one), you can custom your Intent.createChooser to show only the Itents you want.
The trick is add EXTRA_INITIAL_INTENTS to the default list, generated from the createChoose, and remove the others Intents from the list.
Look at this sample where I create a chooser that shows only my e-mails apps. In my case appears three mails: Gmail, YahooMail and the default Mail.
private void share(String nameApp, String imagePath) {
List<Intent> targetedShareIntents = new ArrayList<Intent>();
Intent share = new Intent(android.content.Intent.ACTION_SEND);
share.setType("image/jpeg");
List<ResolveInfo> resInfo = getPackageManager().queryIntentActivities(share, 0);
if (!resInfo.isEmpty()){
for (ResolveInfo info : resInfo) {
Intent targetedShare = new Intent(android.content.Intent.ACTION_SEND);
targetedShare.setType("image/jpeg"); // put here your mime type
if (info.activityInfo.packageName.toLowerCase().contains(nameApp) ||
info.activityInfo.name.toLowerCase().contains(nameApp)) {
targetedShare.putExtra(Intent.EXTRA_TEXT, "My body of post/email");
targetedShare.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(imagePath)) );
targetedShare.setPackage(info.activityInfo.packageName);
targetedShareIntents.add(targetedShare);
}
}
Intent chooserIntent = Intent.createChooser(targetedShareIntents.remove(0), "Select app to share");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, targetedShareIntents.toArray(new Parcelable[]{}));
startActivity(chooserIntent);
}
}
You can run like that: share("twi", "/sdcard/dcim/Camera/photo.jpg");
This was based on post: Custom filtering of intent chooser based on installed Android package name
This question is a bit older, but since I have just come across a similar problem, it may also still be of interest to others. First, as mentioned by Peter, create your intent:
Intent tweetIntent = new Intent(Intent.ACTION_SEND);
tweetIntent.putExtra(Intent.EXTRA_TEXT, "Test; please ignore");
tweetIntent.setType("application/twitter");
"application/twitter" is in fact a known content type, see here. Now, when you try to start an activity with this intent, it will show all sorts of apps that are not really Twitter clients, but want a piece of the action. As already mentioned in a couple of the "why do you even want to do that?" sort of answers, some users may find that useful. On the other hand, if I have a button in my app that says "Tweet this!", the user would very much expect this to bring up a Twitter client.
Which means that instead of just launching an activity, we need to filter out the ones that are appropriate:
PackageManager pm = getPackageManager();
List<ResolveInfo> lract
= pm.queryIntentActivities(tweetIntent,
PackageManager.MATCH_DEFAULT_ONLY);
boolean resolved = false;
for(ResolveInfo ri: lract)
{
if(ri.activityInfo.name.endsWith(".SendTweet"))
{
tweetIntent.setClassName(ri.activityInfo.packageName,
ri.activityInfo.name);
resolved = true;
break;
}
}
You would need to experiment a bit with the different providers, but if the name ends in ".SendTweet" you are pretty safe (this is the activity name in Twidroyd). You can also check your debugger for package names you want to use and adjust the string comparison accordingly (i.e. Twidroyd uses "com.twidroid.*").
In this simple example we just pick the first matching activity that we find. This brings up the Twitter client directly, without the user having to make any choices. If there are no proper Twitter clients, we revert to the standard activity chooser:
startActivity(resolved ? tweetIntent :
Intent.createChooser(tweetIntent, "Choose one"));
You could expand the code and take into account the case that there is more than one Twitter client, when you may want to create your own chooser dialog from all the activity names you find.
It is entirely possible your users will only ever, now and forever, only want to post to Twitter.
I would think that it is more likely that your users want to send information to people, and Twitter is one possibility. But, they might also want to send a text message, or an email, etc.
In that case, use ACTION_SEND, as described here. Twidroid, notably, supports ACTION_SEND, so it will appear in the list of available delivery mechanisms.
These answers are all overly complex.
If you just do a normal url Intent that does to Twitter.com, you'll get this screen:
which gives you the option of going to the website if you have no Twitter apps installed.
String url = "https://twitter.com/intent/tweet?source=webclient&text=TWEET+THIS!";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
Either
You start an activity with an Intent with action Intent.ACTION_SEND and the text/plain MIME type. You'll have all applications that support sending text. That should be any twitter client, as well as Gmail, dropbox, etc.
Or, you try to look up for the specific action of every client you are aware of, like "com.twitter.android.PostActivity" for the official client. That will point to this client, and that is unlikely to be a complete list.
Or, you start with the second point, and fall back on the first...
Nope. The intent type is something like image/png or application/pdf, i.e. a file type, and with createChooser you're basically asking which apps can open this file type.
Now, there's no such thing as an application/twitter file that can be opened, so that won't work. I'm not aware of any other way you can achieve what you want either.
From http://twidroid.com/plugins/
Twidroid’s ACTION_SEND intent
Intent sendIntent = new Intent(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "This is a sample message via Public Intent");
sendIntent.setType("application/twitter");
startActivity(Intent.createChooser(sendIntent, null));
I used "billynomates" answer and was able to use hashtags by using the "URLEncoder.encode(, "UTF-8")" function. The hash tags showed up just fine.
String originalMessage = "some message #MESSAGE";
String originalMessageEscaped = null;
try {
originalMessageEscaped = String.format(
"https://twitter.com/intent/tweet?source=webclient&text=%s",
URLEncoder.encode(originalMessage, "UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if(originalMessageEscaped != null) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(originalMessageEscaped));
startActivity(i);
}
else {
// Some Error
}

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