scheme host not working on android lollipop, click

I am using this piece of code to launch my app from a link.

<activity
        android:name="com.example.myApp.myClass"
        android:label="@string/app_name" >
    <intent-filter>
        <data
            android:host="customHostName"
            android:scheme="customScheme" />
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.BROWSABLE" />
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</activity>

This is href link, i want to get the key in the end.

customScheme://customHost/49FYTJTF00

It is working fine on all previous versions of android, but is not working on Lollipop.
When I click the link it only shows the list of browsers to launch.

What should I do?

标签： android android-intent hyperlink android-5.0-lollipop intentfilter

5条回答

Melony?

2楼-- · 2019-01-17 17:30

Instead of using a link to customScheme://customHost/49FYTJTF00, have you tried using a link like

<a href="intent://customHostName/49FYTJTF00#Intent;scheme=customScheme;end">

Chrome should be able to open that in your app just fine. At the same time, this might not work on all browsers.

0人赞添加讨论(0) 举报

劳资没心，怎么记你

3楼-- · 2019-01-17 17:36

Edit:

After testing and testing, I found that if your scheme contains an uppercase character the browser won't be able to launch it. Your scheme should only contain lowercase characters!

Also note that bug 459156 of the chromium project still doesn't allow you to launch url's directly, you should reference users to a webpage containing this JavaScript code:

<!DOCTYPE html>
<html>
    <body>
        <script language="javascript">
            window.location = 'customscheme://customHost/49FYTJTF00';
        </script>
    </body>
</html>

Users landing on this page will automatically be prompted with either an Activity chooser dialog or directly send to your Activity.

To try it, open the Android browser go to the url below and copy paste the above snippet in the editor: http://www.w3schools.com/html/tryit.asp?filename=tryhtml_intro

Gif showing browser + JavaScript opening the Activity

Gif

Original post

I tried out your custom URI and it works on Android 5.0

But you should be aware of the following two bugs/issues:

Bug 459156 of the Chromium project This basicly means launching custom schemes from the Android browser does not work unless the URL is applied using JavaScript. For a workaround see this StackOverflow post: OAuth and custom scheme result in a "ERR_UNKNOWN_URL_SCHEME" in Chrome
Bug 80971: URI with custom scheme are not clickable in SMS Text (Linkify?)

My approach

I created two separate Activities, one as intent receiver and the other as intent launcher. The launching activity has an EditText where the full URI can be entered and a button to launch the entered URI.

Main.java onClick (Launching activity)

@Override
public void onClick(View view) {
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setData(Uri.parse(input.getText().toString()));
    try {
        startActivity(intent);
    } catch(ActivityNotFoundException e){
        Toast.makeText(this, "Auww!! No Activity can open this URI!", Toast.LENGTH_SHORT).show();
    }
}

manifest.xml (only the activities)

Note the <data android:pathPattern=".*"/> part. this part is important so anything after the host will be accepted as valid.

<activity
    android:name=".Main"
    android:label="@string/app_name">
    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
    </intent-filter>
</activity>

<activity
    android:name=".UriActivity"
    android:label="@string/app_name">

    <!--
    This intent-filter will open any URI with the following forms:

    customscheme://customHost/49FYTJTF00
    customscheme://customHost
    https://www.google.com/something/something
    http://www.google.com/
    http://google.com/something
    -->

    <intent-filter>
        <data android:scheme="https"/>
        <data android:scheme="http"/>
        <data android:host="google.com"/>
        <data android:host="www.google.com"/>

        <data android:scheme="customscheme"/>
        <data android:host="customHost"/>

        <data android:pathPattern=".*"/>

        <action android:name="android.intent.action.VIEW"/>
        <category android:name="android.intent.category.DEFAULT"/>
        <category android:name="android.intent.category.BROWSABLE"/>
    </intent-filter>
</activity>

UriActivity.java (Receiving activity)

public class UriActivity extends ActionBarActivity {

    private TextView tvText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_uri);
        tvText = (TextView) findViewById(R.id.text);
        setTextFromIntent();
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        setTextFromIntent();
    }

    private void setTextFromIntent(){
        StringBuilder text = new StringBuilder();

        Uri data = getIntent().getData();
        if(data != null){
            text.append("Path:\n");
            text.append(data.getPath());

            text.append("\n\nScheme:\n");
            text.append(data.getScheme());

            text.append("\n\nHost:\n");
            text.append(data.getHost());

            text.append("\n\nPath segments:\n");
            text.append(Arrays.toString(data.getPathSegments().toArray()));
        } else {
            text.append("Uri is null");
        }
        tvText.setText(text);
    }
}

Screenshot:

Result of sending the custom intent to the UriActivity

Test project download:

I made a download for the project if you wan't to try it out yourself.

0人赞添加讨论(0) 举报

ゆ、 Hurt°

4楼-- · 2019-01-17 17:38

Keep in mind if you want run the app from Google Chrome you should do that in another way .

0人赞添加讨论(0) 举报

我命由我不由天

5楼-- · 2019-01-17 17:48

Please use pathprefix.

   android:pathPrefix="/"

It might solve your problem. Please follow android developer guide URL.

0人赞添加讨论(0) 举报

The star\"

6楼-- · 2019-01-17 17:51

You wrote:

    <data
        android:host="customHostName"
        android:scheme="customScheme" />

So, use customScheme://customHostName/49FYTJTF00
instead of customScheme://customHost/49FYTJTF00

0人赞添加讨论(0) 举报