Android sdk 支持vcf处理的(忘记最低哪个版本开始支持的了,可以查一查)

备注:此代码来自Stack Overflow(原地址找不到了,o(╥﹏╥)o)

1. 导出联系人为vcf格式

Contact provider中有ContactsContract.Contacts.CONTENT_VCARD_URI的定义,说明他是支持vCard规范的

package com.mygmer.contactstest;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList; import android.app.Activity;
import android.content.res.AssetFileDescriptor;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.ContactsContract;
import android.util.Log; public class VCardActivity extends Activity {
Cursor cursor;
ArrayList<String> vCard;
String vfile; /**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
vfile = "Contacts" + "_" + "mfTest" + ".vcf";
/**This Function For Vcard And here i take one Array List in Which i store every Vcard String of Every Conatact
* Here i take one Cursor and this cursor is not null and its count>0 than i repeat one loop up to cursor.getcount() means Up to number of phone contacts.
* And in Every Loop i can make vcard string and store in Array list which i declared as a Global.
* And in Every Loop i move cursor next and print log in logcat.
* */
getVcardString(); } private void getVcardString() {
// TODO Auto-generated method stub
vCard = new ArrayList<String>();
cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
if (cursor != null && cursor.getCount() > 0) {
cursor.moveToFirst();
for (int i = 0; i < cursor.getCount(); i++) { get(cursor);
Log.d("TAG", "Contact " + (i + 1) + "VcF String is" + vCard.get(i));
cursor.moveToNext();
} } else {
Log.d("TAG", "No Contacts in Your Phone");
} } public void get(Cursor cursor) { //cursor.moveToFirst();
String lookupKey = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);
AssetFileDescriptor fd;
try {
fd = this.getContentResolver().openAssetFileDescriptor(uri, "r"); // Your Complex Code and you used function without loop so how can you get all Contacts Vcard.?? /* FileInputStream fis = fd.createInputStream();
byte[] buf = new byte[(int) fd.getDeclaredLength()];
fis.read(buf);
String VCard = new String(buf);
String path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile;
FileOutputStream out = new FileOutputStream(path);
out.write(VCard.toString().getBytes());
Log.d("Vcard", VCard);*/ FileInputStream fis = fd.createInputStream();
byte[] buf = new byte[(int) fd.getDeclaredLength()];
fis.read(buf);
String vcardstring = new String(buf);
vCard.add(vcardstring); String storage_path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile;
FileOutputStream mFileOutputStream = new FileOutputStream(storage_path, false);
mFileOutputStream.write(vcardstring.toString().getBytes()); } catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}

2.导入vcf格式联系人

 Example code:

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File("/storage/sdcard0/contacts_20180106150125.vcf")),"text/x-vcard");
startActivity(intent);

关于Intent.ACTION_VIEW的描述,里面举例就是举的Contact,嘿嘿:

 /**
* Activity Action: Display the data to the user. This is the most common
* action performed on data -- it is the generic action you can use on
* a piece of data to get the most reasonable thing to occur. For example,
* when used on a contacts entry it will view the entry; when used on a
* mailto: URI it will bring up a compose window filled with the information
* supplied by the URI; when used with a tel: URI it will invoke the
* dialer.
* <p>Input: {@link #getData} is URI from which to retrieve data.
* <p>Output: nothing.
*/

由上面的描述猜测,还原过程中会弹出提示框(会不会有啥确认按钮?),在Android5.1测试,有弹出窗,但没确认按钮,支持就导入联系人了。其他高版本未测试过

05-13 21:45