解決 bitmap size exceeds VM budget (Out Of Memory )的問題 (轉)

再找 GridView bitmap recycle 的時候，看到別人不錯的解決方法。

解决 bitmap size exceeds VM budget （Out Of Memory 内存溢出）的问题

Android get contact list : phone number, display name, email

Android get contact list : phone number, display name

ContentResolver cr = mActivity.getContentResolver();
Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);

while (cursor.moveToNext()) {
            String displayName = "";
            String phoneNumber = "";
            displayName = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
            String id = cursor.getString(cursor.getColumnIndex(BaseColumns._ID));

String id = cursor.getString(cursor.getColumnIndex(BaseColumns._ID));
            Cursor emails = cr.query(Email.CONTENT_URI, null, Email.CONTACT_ID + " = " + id, null, null);
            while (emails.moveToNext()) {
                emailAddress = emails.getString(emails.getColumnIndex(Email.DATA));
                break;
            }
            emails.close();
            if (Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
                Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{id}, null);
                while (pCur.moveToNext()) {
                    phoneNumber = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    phoneNumber = phoneNumber.replaceAll(" ", "");
                    break;
                }
                pCur.close();
            }

Android get call history

Like this.

private void getCallDetails() {
        ContentResolver cr = mActivity.getContentResolver();
        Cursor managedCursor = cr.query( CallLog.Calls.CONTENT_URI,null, null,null, null);
        int number = managedCursor.getColumnIndex( CallLog.Calls.NUMBER );
        int type = managedCursor.getColumnIndex( CallLog.Calls.TYPE );
        int date = managedCursor.getColumnIndex( CallLog.Calls.DATE);
        int duration = managedCursor.getColumnIndex( CallLog.Calls.DURATION);
        StringBuffer sb = new StringBuffer();
        sb.append( "Call Details :");
        while ( managedCursor.moveToNext() ) {
            String phNumber = managedCursor.getString( number );
            String callType = managedCursor.getString( type );
            String callDate = managedCursor.getString( date );
            Date callDayTime = new Date(Long.valueOf(callDate));
            String callDuration = managedCursor.getString( duration );
            String dir = null;
            int dircode = Integer.parseInt( callType );
            switch( dircode ) {
            case CallLog.Calls.OUTGOING_TYPE:
                dir = "OUTGOING";
                break;

            case CallLog.Calls.INCOMING_TYPE:
                dir = "INCOMING";
                break;

            case CallLog.Calls.MISSED_TYPE:
                dir = "MISSED";
                break;
            }
            sb.append( "\nPhone Number:--- "+phNumber +" \nCall Type:--- "+dir+" \nCall Date:--- "+callDayTime+" \nCall duration in sec :--- "+callDuration );
            sb.append("\n----------------------------------");
        }
        System.out.print(sb);
        managedCursor.close();
    }