我正在制作一个简单的音乐播放器。
此方法以字符串数组的形式返回设备上所有歌曲的标题。
<?php
include "../get/header.php";
$Username = SecurePost($_GET['Username']);
$gU = mysqli_fetch_object($getUser = mysqli_query($connection, "SELECT * FROM Users WHERE Username='".$Username."'"));
$UserExist = mysqli_num_rows($getUser = mysqli_query($connection, "SELECT * FROM Users WHERE Username='".$Username."'"));
$getUsers = mysqli_query($connection, "SELECT * FROM Users");
$numUsers = mysqli_num_rows($getUsers);
$reqKills = mysqli_num_rows($allKills = mysqli_query($connection, "SELECT * FROM Kills WHERE Killer='".$gU->Username."'"));
mysqli_query($connection, "UPDATE Users SET Kills='".$reqKills."' WHERE Username='".$gU->Username."'");
$pID = file_get_contents('http://rproxy.pw/rapi/GetIdByUsername/'.$gU->Username.'');
$Rank = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=GetGroupRole&playerid='.$pID.'&groupid=947351');
$getTemp = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='983872'");
$numTemp = mysqli_num_rows($getTemp);
$Tact = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='976897'");
$numTac = mysqli_num_rows($Tact);
$Sci = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='986292'");
$numSci = mysqli_num_rows($Sci);
$MAC = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='1045203'");
$NumMAC = mysqli_num_rows($MAC);
$Ops = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='1159559'");
$numOps = mysqli_num_rows($Ops);
$Eng = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='990439'");
$numEng = mysqli_num_rows($Eng);
$Diplo = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='992455'");
$numDip = mysqli_num_rows($Diplo);
$Intel = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='974799'");
$numIntel = mysqli_num_rows($Intel);
$realIA = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='2640969'");
$numIA = mysqli_num_rows($realIA);
#GroupAssign#
$Temporal = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=983872');
$Tactical = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=976897');
$Science = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=986292');
$MACO = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=1045203');
$Operations = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=1159559');
$Engineering = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=990439');
$IA = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=2640969');
$Diplomatic = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=992455');
$Intelligence = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=974799');
if ($Temporal == true AND $numTemp == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Temporal Investigations','Temporal','983872')");
}
if ($Tactical == true AND $numTac == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Tactical Command','Tactical','976897')");
}
if ($Science == true AND $numSci == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Applied Sciences','Science','986292')");
}
if ($MACO == true AND $NumMAC == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','MACO','MACO','1045203')");
}
if ($Operations == true AND $numOps == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Operations','Operations','1159559')");
}
if ($Engineering == true AND $numEng == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Engineering','Engineering','990439')");
}
if ($IA == true AND $numIA == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Internal Affairs','IA','2640969')");
}
if ($Diplomatic == true AND $numDip == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Diplomatic Corps','Diplomatic','992455')");
}
if ($Intelligence == true AND $numIntel == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Starfleet Intelligence','Intelligence','974799')");
}
?>
将字符串数组传递给适配器，该适配器填充列表视图。
private String[] getMusic() {
String[] projection = {
MediaStore.Audio.Media.TITLE,
};
final Cursor mCursor = getContentResolver().query(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
projection, null, null,
"LOWER(" + MediaStore.Audio.Media.TITLE + ") ASC");
int count = mCursor.getCount();
String[] songs = new String[count];
int i = 0;
if (mCursor.moveToFirst()) {
do {
songs[i] = mCursor.getString(0);
i++;
} while (mCursor.moveToNext());
}
mCursor.close();
return songs;
}
如何使用列表适配器包含艺术家，持续时间和数据？
例如，我的mMusicList = getMusic();
ArrayAdapter<String> mAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, mMusicList);
mListView.setAdapter(mAdapter);
方法可以这样开始：
getMusic()我无法弄清楚剩下的。也许歌曲数组可以在传递给适配器之前制作成多维的，例如。
private String[] getMusic() {
String[] projection = {
MediaStore.Audio.Media.ARTIST,
MediaStore.Audio.Media.TITLE,
MediaStore.Audio.Media.DATA,
MediaStore.Audio.Media.DURATION
};
...
}