当我用system packageNames调用resolveActivity()函数时,我收到以下异常:
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.getHost()' on a null object reference
at android.os.Parcel.readException(Parcel.java:1546)
at android.os.Parcel.readException(Parcel.java:1493)
at android.content.pm.IPackageManager$Stub$Proxy.resolveIntent(IPackageManager.java:2513)
at android.app.ApplicationPackageManager.resolveActivityAsUser(ApplicationPackageManager.java:545)
at android.app.ApplicationPackageManager.resolveActivity(ApplicationPackageManager.java:539)
at com.github.aayvazyan.polyse.util.APKInfo.getResolveInfo(APKInfo.java:87)
此例外可通过以下方式重现:
Intent intent = new Intent();
intent.setPackage("com.google.android.calendar");
intent.addCategory(Intent.CATEGORY_LAUNCHER);
ResolveInfo result = getPackageManager().resolveActivity(intent, 0);
我使用SDK 21和Build Tools" 21.1.1"
答案 0 :(得分:4)
要解决此问题,我使用以下内容而不是空构造函数初始化Intent:
Intent intent = new Intent(Intent.ACTION_MAIN, null);