权限拒绝：启动 Intent 未从 uid 导出

当我从我自己的应用程序打开手机中已安装的应用程序时，我遇到了这个问题。

权限拒绝：启动 Intent { act=android.intent.action.MAIN 猫=[android.intent.category.LAUNCHER] cmp=com.qq.reader/.widget.picbrowser.PictureActivity } 来自 ProcessRecord{3823559b 16851:com.pax.market.android.app/u0a322} （pid=16851，uid=10322）未从 uid 导出 10324

  public static void openApp(Activity activity,String packageName) {
    PackageInfo pi;
    try {
        pi = activity.getPackageManager().getPackageInfo(packageName, 0);
        Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
        resolveIntent.setPackage(pi.packageName);
        PackageManager pManager = activity.getPackageManager();
        List apps = pManager.queryIntentActivities(
                resolveIntent, 0);

        ResolveInfo ri = (ResolveInfo) apps.iterator().next();
        if (ri != null) {
            packageName = ri.activityInfo.packageName;
            String className = ri.activityInfo.name;
            Intent intent = new Intent(Intent.ACTION_MAIN);
            intent.addCategory(Intent.CATEGORY_LAUNCHER);
            ComponentName cn = new ComponentName(packageName, className);
            intent.setComponent(cn);
            activity.startActivity(intent);
        }
    } catch (NameNotFoundException e) {
        Log.e(TAG, "Package Name not found: " + e.getMessage() + ", App is not installed.");
    } catch (SecurityException e){
        SnackBar.newBuilder().activity(activity).
                text(activity.getString(R.string.permission_denied_to_open))
                .build().show();
    }
}

`

列出应用程序 = pManager.queryIntentActivities(resolveIntent, 0); 将发现不止一项活动。

例如：应用程序名称：QQReader，包名称：com.qq.reader。

你会发现两项活动：

com.qq.reader.widget.picbrowser.PictureActivity

com.qq.reader.activity.SplashActivity

PictureActivity无法启动，因为exported=false，所以SplashActivity可以启动

代码修改如下：

public static void  openApp(Activity activity,String packageName) {
PackageInfo pi;
try {
    pi = activity.getPackageManager().getPackageInfo(packageName, 0);
    Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
    resolveIntent.setPackage(pi.packageName);
    PackageManager pManager = activity.getPackageManager();
    List<ResolveInfo> apps = pManager.queryIntentActivities(
            resolveIntent, 0);
    for(ResolveInfo app: apps){

        Log.d(TAG,String.format("%s %s",app.activityInfo.packageName,app.activityInfo.name));
        packageName = app.activityInfo.packageName;
        String className = app.activityInfo.name;
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        ComponentName cn = new ComponentName(packageName, className);
        intent.setComponent(cn);
        try {
            activity.startActivity(intent);
        }catch(SecurityException e){
            e.printStackTrace();
        }
    }
  /*  ResolveInfo ri = (ResolveInfo) apps.iterator().next();
    if (ri != null) {
        packageName = ri.activityInfo.packageName;
        String className = ri.activityInfo.name;
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        ComponentName cn = new ComponentName(packageName, className);
        intent.setComponent(cn);
        activity.startActivity(intent);
    }*/
} catch (PackageManager.NameNotFoundException e) {
    Log.e(TAG, "Package Name not found: " + e.getMessage() + ", App is not installed.");
} catch (SecurityException e){
    SnackBar.newBuilder().activity(activity).
            text(activity.getString(R.string.permission_denied_to_open))
            .build().show();
}

}