[英]putParcelableArrayListExtra(ArrayList<Uri>) throws ArrayList cannot be cast to android.os.Parcelable
I want to add multiple images as attachment to an email. 我想添加多个图像作为电子邮件的附件。 Therefore I am trying to add a
java.util.ArrayList
to an email Intent
. 因此,我试图将
java.util.ArrayList
添加到电子邮件Intent
。 The list contains android.net.Uri
elements. 该列表包含
android.net.Uri
元素。 But it throws a ClassCastException
: 但它会抛出
ClassCastException
:
java.lang.ClassCastException: java.util.ArrayList cannot be cast to android.os.Parcelable
at android.os.Bundle.getParcelable(Bundle.java:792)
at android.content.Intent.getParcelableExtra(Intent.java:5377)
at android.content.Intent.migrateExtraStreamToClipData(Intent.java:8144)
at android.content.Intent.migrateExtraStreamToClipData(Intent.java:8124)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1505)
at android.app.Activity.startActivityForResult(Activity.java:3917)
at android.app.Activity.startActivityForResult(Activity.java:3877)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:843)
at android.app.Activity.startActivity(Activity.java:4200)
at android.app.Activity.startActivity(Activity.java:4168)
at de.zinnet.parkingoffenders.ParkingOffendersActivity.sendEmail(ParkingOffendersActivity.java:135)
at de.zinnet.parkingoffenders.ParkingOffendersActivity.onOptionsItemSelected(ParkingOffendersActivity.java:103)
at android.app.Activity.onMenuItemSelected(Activity.java:2908)
at android.support.v4.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:404)
I tried it with different types for the Intent
. 我尝试了不同类型的
Intent
。 The method I call to create the Intent
and start the Activity
: 我调用的方法创建
Intent
并启动Activity
:
private void sendEmail() {
ParkingOffendersListFragment fragment = (ParkingOffendersListFragment) getFragmentManager().findFragmentById(R.id.fragment_list);
Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.setType("text/plain");
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
String[] to = {settings.getString(getResources().getString(R.string.key_receiver_mail), "")};
emailIntent .putExtra(Intent.EXTRA_EMAIL, to);
String subject = settings.getString(getResources().getString(R.string.key_subject_mail), "");
emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
String text = settings.getString(getResources().getString(R.string.key_template_mail), "");
emailIntent.putExtra(Intent.EXTRA_TEXT, text);
ArrayList<Parcelable> uris = new ArrayList<>();
ParkingOffendersListAdapter adapter = fragment.getAdapter();
for(ParkingOffender parkingOffender : adapter.getSelectedItems()) {
if(parkingOffender.getImageFilePath() != null) {
uris.add(Uri.parse(parkingOffender.getImageFilePath()));
}
}
emailIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
startActivity(Intent.createChooser(emailIntent , "Send email..."));
}
I couldn't find a solution. 我找不到解决方案。 This did not solve my problem.
这并没有解决我的问题。
ACTION_SEND
supports EXTRA_STREAM
, but only for a single Uri
. ACTION_SEND
支持EXTRA_STREAM
,但仅适用于单个Uri
。 ACTION_SEND_MULTIPLE
supports EXTRA_STREAM
with an ArrayList<Uri>
. ACTION_SEND_MULTIPLE
支持带有ArrayList<Uri>
EXTRA_STREAM
。 So, either change the action or change the extra. 因此,要么改变动作,要么改变额外的动作。
Try putting a ArrayList
of String
s as extra to the Intent
and then when getting the extras back from the next Activity
, just parse it back into Uri
s. 尝试将
String
的ArrayList
作为Intent
额外内容,然后在从下一个Activity
获取额外内容时,只需将其解析回Uri
。
See this answer 看到这个答案
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