实例介绍
【实例简介】
【实例截图】
【核心代码】
package com.hrw.android.player.activity;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.app.TabActivity;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TextView;
import android.widget.Toast;
import com.hrw.android.player.R;
import com.hrw.android.player.adapter.MusicListAdapter;
import com.hrw.android.player.component.dialog.CommonAlertDialogBuilder;
import com.hrw.android.player.dao.AudioDao;
import com.hrw.android.player.dao.impl.AudioDaoImpl;
import com.hrw.android.player.db.constants.UriConstant;
import com.hrw.android.player.domain.Audio;
import com.hrw.android.player.service.SystemService;
import com.hrw.android.player.utils.Constants;
import com.hrw.android.player.utils.DirectoryUtil;
import com.hrw.android.player.utils.Constants.PopupMenu;
public class MusicListActivity extends BaseListActivity {
private AudioDao audioDao = new AudioDaoImpl(this);
private ImageButton back_btn;
private ProgressDialog progress_dialog;
private List<Audio> musicList;
private List<Integer> checkedItem = new ArrayList<Integer>();
private String[] choices;
private MusicListAdapter adapter;
Set<Integer> popUpMenu = new HashSet<Integer>();
private Handler musicListHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 0: {
progress_dialog.dismiss();
break;
}
default:
break;
}
}
};
private Runnable mRunnable = new Runnable() {
public void run() {
for (int i = 0; i < checkedItem.size(); i ) {
String[] s = DirectoryUtil
.MediaScan(choices[checkedItem.get(i)]);
// System.out.println(s.toString());
for (int j = 0; j < s.length; j ) {
// System.out.println(s[j]);
}
}
musicListHandler.sendEmptyMessage(0);
}
};
// private Thread mThread = new Thread() {
//
// public void run() {
// for (int i = 0; i < checkedItem.size(); i ) {
// String[] s = DirectoryUtil
// .MediaScan(choices[checkedItem.get(i)]);
// // System.out.println(s.toString());
// for (int j = 0; j < s.length; j ) {
// // System.out.println(s[j]);
// }
// }
// mHandler.sendEmptyMessage(0); // 告诉handler
// }
// };
@Override
protected void onPrepareDialog(int id, Dialog dialog) {
AlertDialog alertDialog = (AlertDialog) dialog;
ListView lv = alertDialog.getListView();
for (int i = 0; i < choices.length; i ) {
lv.setItemChecked(i, false);
}
super.onPrepareDialog(id, dialog);
}
protected void showProcessDialog() {
progress_dialog = ProgressDialog.show(this, null, "正在扫描");
}
@Override
protected Dialog onCreateDialog(int id) {
final SystemService systemService = new SystemService(this);
Set<String> folderList = systemService.getFolderContainMedia();
choices = folderList.toArray(new String[folderList.size()]);
// 选项数组
// String[] choices = { "Facebook", "Twitter" };
// Check判断数组，与选项对应
// boolean[] chsBool = { true, false };
AlertDialog dialog = CommonAlertDialogBuilder.getInstance(this)
.setIcon(R.drawable.ic_menu_scan).setTitle("请选择扫描目录")
.setMultiChoiceItems(choices, null,
new OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which, boolean isChecked) {
if (isChecked) {
checkedItem.add(which);
} else {
checkedItem.remove((Object) which);
}
}
}).setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// System.out.println(checkedItem.toString());
for (int i = 0; i < checkedItem.size(); i ) {
// System.out.println(choices[checkedItem
// .get(i)]);
addMediaToPlaylist(systemService
.getMediasByFolder(choices[checkedItem
.get(i)]));
System.out
.println(systemService
.getMediasByFolder(
choices[checkedItem
.get(i)])
.toString());
}
showProcessDialog();
mRunnable.run();
checkedItem.clear();
}
}).setNegativeButton("No",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
checkedItem.clear();
}
}).create();
return dialog;
}
private String getMediaName(String path) {
String mediaName = path.substring(path.lastIndexOf("/") 1, path
.length());
return mediaName;
}
// 添加音乐到播放列表
private final void addMediaToPlaylist(Set<String> medias) {
String pId = this.getIntent().getExtras().get(
"com.hrw.android.player.pid").toString();
ContentValues values = new ContentValues();
for (String path : medias) {
if (getCountPlaylistMediaByName(getMediaName(path)) == 0) {
Audio audio = new Audio();
audio.setPlaylistId(pId);
audio.setName(getMediaName(path));
audio.setPath(path);
audio.setAddDate(new Date());
audio.setUpdateDate(new Date());
values = bulid(audio);
audioDao.addMediaToPlaylist(values);
}
}
initListAdapter();
Toast.makeText(this, "添加音乐成功", Toast.LENGTH_LONG).show();
}
private final int getCountPlaylistMediaByName(String name) {
ContentResolver resolver = getContentResolver();
Uri uri = Uri
.parse("content://" UriConstant.AUTHORITY "/audiolist");
String[] proj = { "id" };
// String
// selection=MediaStore.Audio.Media.DATA " like '/mnt/sdcard/Recording/%'";
String selection = "playlist_id = ? AND audio_name = ?";
String[] selectionArgs = {
this.getIntent().getExtras().get("com.hrw.android.player.pid")
.toString(), name };
Cursor cursor = resolver.query(uri, proj, selection, selectionArgs,
null);
return cursor.getCount();
}
private void initButtons() {
final TabActivity tabActivity = (TabActivity) getParent();
final Intent toMenuListActivity = new Intent(this,
MenuListActivity.class);
LinearLayout addAudioBtn = (LinearLayout) findViewById(R.id.create_audio_list_header);
addAudioBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showDialog(1);
}
});
back_btn = (ImageButton) tabActivity.findViewById(R.id.list_back);
back_btn.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
} else if (event.getAction() == MotionEvent.ACTION_UP) {
TabHost.TabSpec tab_spec_menu_list = tabActivity
.getTabHost().newTabSpec(
Constants.TAB_SPEC_TAG.MAIN_SPEC_TAG
.getId()).setIndicator(
Constants.TAB_SPEC_TAG.MAIN_SPEC_TAG
.getId());
tab_spec_menu_list.setContent(toMenuListActivity);
tabActivity.getTabHost().addTab(tab_spec_menu_list);
tabActivity.getTabHost().setCurrentTabByTag(
Constants.TAB_SPEC_TAG.MAIN_SPEC_TAG.getId());
Intent updateUiIntent = new Intent(
Constants.UPDATE_UI_ACTION);
sendBroadcast(updateUiIntent);
}
return false;
}
});
}
public void initListAdapter() {
musicList = audioDao.getAudioListByPlaylistId(this.getIntent()
.getExtras().get("com.hrw.android.player.pid").toString());
adapter = new MusicListAdapter(this, musicList, this.getIntent()
.getExtras().get("com.hrw.android.player.pid").toString());
setListAdapter(adapter);
TextView count_audio = (TextView) findViewById(R.id.count_audio);
count_audio.setText("共" String.valueOf(musicList.size()) "首");
// count_audio.setText(count_audio.getText().toString().replace("{0}",
// String.valueOf(musicList.size())));
// this.getListView().setOnItemLongClickListener(
// new OnItemLongClickListener() {
// @Override
// public boolean onItemLongClick(AdapterView<?> parent,
// View view, int position, long id) {
// showItemLongClickDialog(id);
// return false;
// }
// });
// this.getListView().setOnItemClickListener(new OnItemClickListener() {
//
// @Override
// public void onItemClick(AdapterView<?> parent, View view,
// int position, long id) {
// Toast.makeText(
// getApplicationContext(),
// adapter.getCheckedBoxPositionIds().toString()
// "---clicked item name:"
// adapter.getItem(position)
// "--Path:"
// audioDao.getMusicPathByName(adapter.getItem(
// position).toString()),
// Toast.LENGTH_LONG).show();
// play(audioDao.getMusicPathByName(adapter.getItem(position)
// .toString()));
//
// }
//
// });
}
/**
* private void play(String path) { ImageButton play_btn = (ImageButton)
* findViewById(R.id.play_btn); try { if (mpu == null) { mpu =
* MediaPlayerUtil.getInstance(onCompletionListener); } if (mpu.isPlaying()
* && mpu.getPlayingMediaPath().equals(path)) {
* play_btn.setVisibility(ImageButton.VISIBLE);
* findViewById(R.id.position_icon).setPadding(30, 0, 0, 0);
* play_btn.setImageResource(R.drawable.list_pause_indicator); mpu.pause();
* } else if (mpu.isPause() && mpu.getPlayingMediaPath().equals(path)) {
* play_btn.setVisibility(ImageButton.VISIBLE);
* findViewById(R.id.position_icon).setPadding(30, 0, 0, 0);
* play_btn.setImageResource(R.drawable.list_playing_indicator);
* mpu.start(); } else { if (mpu.isPlaying() || mpu.isPause()) {
* mpu.reset(); } play_btn.setVisibility(ImageButton.VISIBLE);
* findViewById(R.id.position_icon).setPadding(30, 0, 0, 0);
* play_btn.setImageResource(R.drawable.list_playing_indicator);
* mpu.play(path); }
*
* } catch (IllegalStateException e) { // TODO Auto-generated catch block
* e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated
* catch block e.printStackTrace(); }
*
* }
**/
private void showItemLongClickDialog(final long id) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
final CharSequence[] items = { "重命名", "删除" };
// TODO setMessage is something different with kugou's
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
switch (which) {
// TODO 0,1 to constant
case 0:
break;
case 1:
// playlistDao.removePlaylist(String.valueOf(id));
initListAdapter();
break;
default:
break;
}
}
}).setTitle("id:" id);
AlertDialog alert = builder.create();
alert.show();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.audio_list);
initPopupMenu();
initButtons();
}
@Override
protected void onResume() {
initListAdapter();
super.onResume();
}
private List<String> getMusicListByPId(String id) {
List<String> musicList = new ArrayList<String>();
ContentResolver cr = getContentResolver();
Uri uri = Uri
.parse("content://" UriConstant.AUTHORITY "/audiolist");
String[] projection = { "audio_path" };
String selection = "playlist_id = ?";
String[] selectionArgs = { id };
Cursor c = cr.query(uri, projection, selection, selectionArgs, null);
if (c.moveToFirst()) {
for (int i = 0; i < c.getCount(); i ) {
c.moveToPosition(i);
musicList.add(c
.getString(c.getColumnIndexOrThrow("audio_path")));
}
}
c.close();
return musicList;
}
@Override
protected Set<Integer> getPopUpMenu() {
if (adapter.getCheckedBoxPositionIds().size() > 0) {
popUpMenu.add(PopupMenu.ADD_TO.getMenu());
} else {
popUpMenu.remove(PopupMenu.ADD_TO.getMenu());
}
return popUpMenu;
}
private void initPopupMenu() {
popUpMenu.add(PopupMenu.ADD_TO.getMenu());
popUpMenu.add(PopupMenu.CREATE_LIST.getMenu());
popUpMenu.add(PopupMenu.EXIT.getMenu());
popUpMenu.add(PopupMenu.HELP.getMenu());
popUpMenu.add(PopupMenu.SETTING.getMenu());
}
}
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