通过在 AndroidManifest.xml 中 去除

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

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

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

达到 在桌面隐藏的效果 ，然后通过以下代码启动：

private String packageName = "com.android.dialer";
private String className = "com.android.dialer.main.impl.MainActivity";
Intent intent=new Intent();
intent.setComponent(new ComponentName(packageName, className));
mContext.startActivity(intent);

测试反馈会概率性报错 ： log信息如下 ：

ATAL EXCEPTION: main

09-26 13:41:25.236 22041 22041 E AndroidRuntime: Process: com.android.dialer, PID: 22041

09-26 13:41:25.236 22041 22041 E AndroidRuntime: java.lang.RuntimeException: java.lang.IllegalStateException: Launcher activity not found for package com.android.dialer

09-26 13:41:25.236 22041 22041 E AndroidRuntime: at com.android.dialer.common.concurrent.-$$Lambda$DefaultDialerExecutorFactory$BaseTaskBuilder$D6vDBb1osF1Sb57-3h9xIG737pg.onFailure(lambda:1)

09-26 13:41:25.236 22041 22041 E AndroidRuntime: at com.android.dialer.common.concurrent.DefaultDialerExecutorFactory$NonUiDialerExecutor.lambda$run$4$DefaultDialerExecutorFactory$NonUiDialerExecutor(DefaultDialerExecutorFactory.java:1)

09-26 13:41:25.236 22041 22041 E AndroidRuntime: at com.android.dialer.common.concurrent.-$$Lambda$DefaultDialerExecutorFactory$NonUiDialerExecutor$rW7kpUk-V_nmgBt99bX4n6sSDTQ.run(Unknown Source:4)

请问去掉 <category android:name="android.intent.category.LAUNCHER"/> 不能用intent 启动吗？