通过应用市场更新 app（也就是打开指定包名的详情页面）。
依赖其中一个即可：
implementation 'com.github.nukc.appmarketupdater:updater:0.0.2'
implementation 'com.github.nukc.appmarketupdater:updater-rxjava2:0.0.2'
implementation 'com.github.nukc.appmarketupdater:updater-kotlin:0.0.2' AppMarketUpdater.show(context, packageName); private static List<ResolveInfo> queryAppMarkets(Context context) {
Intent intent = new Intent();
intent.setAction("android.intent.action.MAIN");
intent.addCategory("android.intent.category.APP_MARKET");
PackageManager pm = context.getPackageManager();
return pm.queryIntentActivities(intent, 0);
}通过这个方法是不能匹配到手机上所有的应用市场，为什么呢？来看下面这几个 activity 清单信息：
这个是可以匹配到的。
<activity
android:theme="@ref/0x7f0b00b5"
android:name="com.xx.xx.xx.xx.MainActivity"
android:configChanges="0x6a0">
<intent-filter>
<action
android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
<category
android:name="android.intent.category.MULTIWINDOW_LAUNCHER" />
<category
android:name="android.intent.category.APP_MARKET" />
<category
android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
......
</intent-filter>
<meta-data
android:name="android.app.shortcuts"
android:resource="@ref/0x7f080006" />
</activity>
这个是不能匹配到的。
<activity
android:theme="@ref/0x7f0a003c"
android:name="com.xx.activity.xxActivity"
android:launchMode="1"
android:screenOrientation="1"
android:configChanges="0x4a0"
android:windowSoftInputMode="0x10">
<intent-filter>
<action
android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<category
android:name="android.intent.category.DEFAULT" />
<category
android:name="android.intent.category.APP_MARKET" />
</intent-filter>
<intent-filter>
<action
android:name="android.intent.action.VIEW" />
<category
android:name="android.intent.category.DEFAULT" />
<data
android:scheme="market"
android:host="details"
android:path="@string/0x27" />
</intent-filter>
</activity>
不难发现，android.intent.category.APP_MARKET 所在的 intent-filter 是有些许不一样的，匹配不到的缺少了 android.intent.action.MAIN（把 android.intent.category.APP_MARKET 放在了一个没有 action 的 intent-filter 里）
之后我查看了另一个匹配不到的某手机助手： 以前的版本能匹配到的：
<activity
android:theme="@ref/0x7f0b0059"
android:name="com.xx.LauncherActivity"
android:exported="true"
android:screenOrientation="1"
android:alwaysRetainTaskState="true">
<intent-filter>
<action
android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
<category
android:name="android.intent.category.APP_MARKET" />
<category
android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>新版，不能匹配到：
<activity
android:theme="@ref/0x7f0b005c"
android:name="com.xx.LauncherActivity"
android:exported="true"
android:screenOrientation="1">
<intent-filter>
<category
android:name="android.intent.category.APP_MARKET" />
<category
android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>没有 action 是没有问题的，但是无法匹配到。
If the filter does not list any actions, there is nothing for an intent to match, so all intents fail the test. However, if an Intent does not specify an action, it passes the test as long as the filter contains at least one action
还是直接看文档吧 intents-filters.html#ActionTest 如果是开发应用市场的同学看到了，可以注意一下。
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