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@84d010m08(Tomoya Hashido)

AndroidManifest.xml で URI の Host/Path の有無を識別して Activity を起動し分けてみた件

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前提

架空の「スマート LED 操作用アプリ」を題材にします :iphone:

Host の有無の識別

以下の URI が叩かれた場合にアプリ側で対応した Activity を直接立ち上げたいとします。

URI Activity
smart-led-controller:// MainActivity
smart-led-controller://timer TimerActivity

問題のあるコード :no_good:

strings.xml
<resources>
    <string name="app_name">Smart LED controller</string>

    <string name="scheme">smart-led-controller</string>
    <string name="host_timer">timer</string>
</resources>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="jp.sample.smart_led_controller">

    <application
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data android:scheme="@string/scheme" />
            </intent-filter>
        </activity>

        <activity android:name=".TimerActivity">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_timer"
                    android:scheme="@string/scheme" />
            </intent-filter>
        </activity>
    </application>

</manifest>

問題点

smart-led-controller://timer の URI が叩かれた場合に MainActivity と TimerActivity が遷移先の候補として挙がってしまいます :cry:

Screenshot_1532802953.png

対策 :hammer_pick:

MainActivity の <data /> に android:host="" を追記することで smart-led-controller://timer が踏まれても MainActivity は起動先の候補に挙がらなくなりました :grinning:

修正後のコード :ok_woman:

AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="jp.sample.smart_led_controller">

    <application
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host=""
                    android:scheme="@string/scheme" />
            </intent-filter>
        </activity>

        <activity android:name=".TimerActivity">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_timer"
                    android:scheme="@string/scheme" />
            </intent-filter>
        </activity>
    </application>
</manifest>

備考 :information_desk_person:

但し Android Studio 様から「ホストを空にすることはできない」と警告を受けます :warning:

android:host cannot be empty.
Ensure the URL is supported by your app, to get installs and traffic to your app from Google Search.

More info: https://g.co/AppIndexing/AndroidStudio

Path の有無の識別

以下の URL が叩かれた場合にアプリ側で対応した Activity を直接立ち上げたいとします。

URL Activity
https://smart-led-controller MainActivity
https://smart-led-controller/settings/wi-fi WifiSettingActivity

問題のあるコード :ng:

strings.xml
<resources>
    <string name="app_name">Smart LED controller</string>

    <string name="scheme_https">https</string>
    <string name="host_smart_led_controller">smart-led-controller</string>
    <string name="path_settings_wifi">/settings/wi-fi</string>
</resources>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="jp.sample.smart_led_controller">

    <application
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:scheme="@string/scheme_https" />
            </intent-filter>
        </activity>

        <activity android:name=".WifiSettingActivity">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:path="@string/path_settings_wifi"
                    android:scheme="@string/scheme_https" />
            </intent-filter>
        </activity>
    </application>
</manifest>

問題点

https://smart-led-controller/settings/wi-fi の URL が叩かれた場合に MainActivity と WifiSettingActivity が遷移先の候補として挙がってしまいます :sob:

Screenshot_1532801360.png

対策 :hammer_pick:

MainActivity の <data /> に android:path="" を追記することで https://smart-led-controller/settings/wi-fi が踏まれても MainActivity は起動先の候補に挙がらなくなりました :sparkles:

修正後のコード :ok:

AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="jp.sample.smart_led_controller">

    <application
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:path=""
                    android:scheme="@string/scheme_https" />
            </intent-filter>
        </activity>

        <activity android:name=".WifiSettingActivity">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:path="@string/path_settings_wifi"
                    android:scheme="@string/scheme_https" />
            </intent-filter>
        </activity>
    </application>
</manifest>

備考 :information_source:

但し Android Studio 様から「パスを空にすることはできない」と警告を受けます :rotating_light:

android:path cannot be empty. 
Ensure the URL is supported by your app, to get installs and traffic to your app from Google Search.

More info: https://g.co/AppIndexing/AndroidStudio

One more thing...

https://smart-led-controller/ の URL がタップされた場合にも MainActivity が遷移先の候補に挙るようにしてみます。

方法

MainActivity の <intent-filter /> に android:path="/" を含む <data /> 追記します :writing_hand:

コード

AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="jp.sample.smart_led_controller">

    <application
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:path=""
                    android:scheme="@string/scheme_https" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:path="/"
                    android:scheme="@string/scheme_https" />
            </intent-filter>
        </activity>

        <activity android:name=".WifiSettingActivity">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="@string/host_smart_led_controller"
                    android:path="@string/path_settings_wifi"
                    android:scheme="@string/scheme_https" />
            </intent-filter>
        </activity>
    </application>
</manifest>

参考 :books:

Deep Link のテスト方法について :bulb:

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