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从包装材料开始活动
原标题:Starting activity from packageinfo

有没有一种方法从PackageInfo中运行意图?我一直在搜索,但找不到。

我试图这样做。

Intent i = new Intent(); 
i.setAction(Intent.ACTION_MAIN);
i.addCategory(Intent.CATEGORY_LAUNCHER);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
i.setComponent(new ComponentName(p.applicationInfo.packageName,p.applicationInfo.name));
startActivity(i);

但这不起作用,因为p.applicationInfo.name始终为空。

问题回答

以下代码适用于我使用的SDK 8.18。

假设“p”是您的PackageInfo

ApplicationInfo appInfo = p.applicationInfo;

String packageName = appInfo.packageName;

startIntent = getPackageManager().getLaunchIntentForPackage(packageName);

if(startIntent != null){
    startActivity(startIntent);
}

请尝试使用以下代码:

Intent i = getPackageManager().p.applicationInfo.packageName(p.applicationInfo.packageName);
startActivity(i);

在开始活动之前,如果你需要,你可以设定任何旗帜(i.setFlags()。





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