AppLaunchChecker - Speaker Deck

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AppLaunchChecker @magiepooh

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About me @magiepooh @magie_pooh Takuma Fujita

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Company AbemaTV, Inc. (Cyber Agent, Inc.)

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AppLaunchChecker

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@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); AppLaunchChecker.hasStartedFromLauncher(this); // => false }

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@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); AppLaunchChecker.onActivityCreate(this); AppLaunchChecker.hasStartedFromLauncher(this); // => true }

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public static boolean hasStartedFromLauncher(Context context) { return context.getSharedPreferences(SHARED_PREFS_NAME, 0) .getBoolean(KEY_STARTED_FROM_LAUNCHER, false); } public static void onActivityCreate(Activity activity) { ﬁnal SharedPreferences sp = activity.getSharedPreferences(SHARED_PREFS_NAME, 0); if (sp.getBoolean(KEY_STARTED_FROM_LAUNCHER, false)) { return; } ﬁnal Intent launchIntent = activity.getIntent(); if (launchIntent == null) { return; } if (Intent.ACTION_MAIN.equals(launchIntent.getAction()) && (launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER) || launchIntent.hasCategory(IntentCompat.CATEGORY_LEANBACK_LAUNCHER))) { SharedPreferencesCompat.EditorCompat.getInstance().apply( sp.edit().putBoolean(KEY_STARTED_FROM_LAUNCHER, true)); } } AppLaunchChecker.java

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• SharedPreferencesʹΠϯςϯτͷΞΫγϣϯ ͱ͔ΧςΰϦͱ͔ݟͯϥϯνϟʔ͔Βىಈ͠ ͔ͨΛॻ͖ࠐΜͰΔ͚ͩ • SharedPreferencesͷ஋ΛϦηοτ͢Δ΋ͷ͸ ༻ҙ͞Ε͍ͯͳ͍

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• Πϯετʔϧ > Launcherىಈ // true • Πϯετʔϧ > DeepLink // false • Πϯετʔϧ > Launcherىಈ > DeepLink // true ݁࿦ɿ

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݁࿦ɿ • Πϯετʔϧ > Launcherىಈ // true • Πϯετʔϧ > DeepLink // false • Πϯετʔϧ > Launcherىಈ > DeepLink // true աڈʹϢʔβ͕Ұ౓Ͱ΋Launcher͔Βىಈ͔ͨ͠Ͳ͏͔

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݁࿦ɿ Ͳ͜Ͱ࢖͑Δ͔શ͘ Θ͔ΒΜɻ