我有一个应用程序,其中一个方面是让用户选择一个联系人并通过该应用程序向该联系人发送文本。该应用程序仅适用于某些联系人,而其他联系人则失败。更确切地说:
对于我手动输入通讯录的联系人,可以Intent.ACTION_PICK
轻松找到并将其返回到应用程序,即是真cursor.moveToFirst()
的。
但是对于 Facebook 导入的联系人(我的手机设置为与 Facebook 联系人同步),android.database.CursorIndexOutOfBoundsException
我点击联系人后得到以下信息。我有一个明显的问题是:为什么我从字面上选择了一个联系人后结果大小为 0?为什么是cursor.moveToFirst()
假的?
...Caused by: android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0
05-15 17:57:04.741: E/AndroidRuntime(21301): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:418)
05-15 17:57:04.741: E/AndroidRuntime(21301): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136)
05-15 17:57:04.741: E/AndroidRuntime(21301): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:50)
05-15 17:57:04.741: E/AndroidRuntime(21301): at android.database.CursorWrapper.getString(CursorWrapper.java:114)
05-15 17:57:04.741: E/AndroidRuntime(21301): at com.company.Game.SendTextActivity.onActivityResult(SendTextActivity.java:118)
05-15 17:57:04.741: E/AndroidRuntime(21301): at android.app.Activity.dispatchActivityResult(Activity.java:5436)
05-15 17:57:04.741: E/AndroidRuntime(21301): at android.app.ActivityThread.deliverResults(ActivityThread.java:3188)
05-15 17:57:04.741: E/AndroidRuntime(21301): ... 11 more
这是我的代码:
调度意图:
Intent pickContactIntent = new Intent(Intent.ACTION_PICK, Uri.parse("content://contacts"));
pickContactIntent.setType(Phone.CONTENT_TYPE); // Show user only contacts w/ phone numbers
startActivityForResult(pickContactIntent, PICK_CONTACT_REQUEST);
onActivity 结果:
(requestCode == PICK_CONTACT_REQUEST) {
// Get the URI that points to the selected contact
Uri contactUri = data.getData();
// We only need the NUMBER column, because there will be only one row in the result
String[] projection = { Phone.NUMBER };
// Perform the query on the contact to get the NUMBER column
// We don't need a selection or sort order (there's only one result for the given URI)
// CAUTION: The query() method should be called from a separate thread to avoid blocking
// your app's UI thread. (For simplicity of the sample, this code doesn't do that.)
// Consider using CursorLoader to perform the query.
Cursor cursor = getContentResolver()
.query(contactUri, projection, null, null, null);
cursor.moveToFirst();
// Retrieve the phone number from the NUMBER column
int column = cursor.getColumnIndex(Phone.NUMBER);
String number = cursor.getString(column);
//do work with number here ...
}
注意:我看到了联系人。但是在我选择 Facebook 导入的联系人后,我遇到了崩溃。
顺便说一句:我的代码片段完全是从 android 教程中复制的:http: //developer.android.com/training/basics/intents/result.html