Toast.makeText(this, time, Toast.LENGTH_SHORT).show();

Cursor cursor = getContentResolver().query(Calls.CONTENT_URI, new String[] { Calls.DURATION, Calls.TYPE, Calls.DATE }, null, null, Calls.DEFAULT_SORT_ORDER); MainActivity.this.startManagingCursor(cursor); boolean hasRecord = cursor.moveToFirst(); long incoming = 0L; long outgoing = 0L; int count = 0; while (hasRecord) { int type = cursor.getInt(cursor.getColumnIndex(Calls.TYPE)); long duration = cursor.getLong(cursor.getColumnIndex(Calls.DURATION)); switch (type) { case Calls.INCOMING_TYPE: incoming += duration; break; case Calls.OUTGOING_TYPE: outgoing += duration; default: break; } count++; hasRecord = cursor.moveToNext(); } Toast.makeText(MainActivity.this, "共计 " + count + "次通话 . 总通话时长 " + (incoming + outgoing) + "秒. 其中接听 " + incoming + " 秒, 拔打 " + outgoing + " 秒.", Toast.LENGTH_LONG).show();