parcelable遇到IOException异常写入序列化对象.........? [英] parcelable encountered ioexception writing serializable object.........?
问题描述
在code
SngList.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图一,视图V,INT位置,长的id){
意向意图=新的意图(getActivity(),NowPlaying.class);
intent.putExtra(数据1,Songinfo);
intent.putExtra(数据2,位置);
startActivity(意向);
}
});
code在接收类
意图I = getIntent();
ArrayList的< SongDetails> Songinfo2 =(ArrayList的< SongDetails>)i.getSerializableExtra(数据1);
位置= i.getIntExtra(数据2,1);
$ C $下songDetials
包源$ C $ c.jazzplayer;
的Bean;
进口android.graphics.Bitmap;
公共类SongDetails实现Serializable {
位图的图标;
弦之歌;
字符串的艺术家;
字符串专辑;
路径字符串;
INT icLauncher;
公共字符串getSong(){
返回首歌曲;
}
公共无效setSong(弦之歌){
this.song =歌曲;
}
公共字符串getArtist(){
返回艺术家;
}
公共无效setArtist(字符串艺术家){
this.Artist =艺术家;
}
公共位图调用getIcon(){
返回图标;
}
公共无效的setIcon(位图位图){
this.icon =位图;
}
公共字符串getPath2(){
返回路径;
}
公共无效setPath2(字符串路径){
this.Path =路径;
}
公共字符串getAlbum(){
返回相册;
}
公共无效setAlbum(字符串专辑){
this.Album =专辑;
}
公共无效的setIcon(INT icLauncher){
this.icLauncher = icLauncher;
}
}
全code:
公共类FragmentSongs扩展片段实现Serializable {
AdapterView.AdapterContextMenuInfo信息;
@覆盖
公共查看onCreateView(LayoutInflater充气,容器的ViewGroup,
捆绑savedInstanceState)
{
查看查看= inflater.inflate(R.layout.fragment_song,集装箱,假);
ListView控件SngList =(ListView控件)view.findViewById(R.id.SongList);
registerForContextMenu(SngList);
文件f =新的文件(/系统/);
//文件f =新的文件(/ SD卡/音乐);
INT J = 0; INT I = 0;
最后的ArrayList< SongDetails> Songinfo = getSongsFromDirectory(F);
如果(Songinfo.size()大于0)
{
为(J = 0; J< Songinfo.size(); J ++)
{
对于(I = J + 1; I< Songinfo.size();我++)
{
SongDetails一个= Songinfo.get(ⅰ);
SongDetails B = Songinfo.get(J);
如果(a.getSong()与toLowerCase()的compareTo(b.getSong()与toLowerCase())≤; 0)
{
Songinfo.set(I,B);
Songinfo.set(J,A);
}
}
}
SngList.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图一,视图V,INT位置,长的id){
意向意图=新的意图(getActivity(),NowPlaying.class);
intent.putExtra(数据1,Songinfo);
intent.putExtra(数据2,位置);
startActivity(意向);
}
});
SngList.setAdapter(新CustomAdapter(Songinfo));
返回查看;
}
否则返回NULL;
}
公众的ArrayList< SongDetails> getSongsFromDirectory(文件F)
{类MediaMetadataRetriever MMR =新类MediaMetadataRetriever();
ArrayList的< SongDetails>歌曲=新的ArrayList< SongDetails>();
位图bitmap2;
BMP位= BitmapFactory.de codeResource(getResources(),R.drawable.ab);
浮ht_px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,100,getResources()getDisplayMetrics());
浮wt_px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,100,getResources()getDisplayMetrics());
bitmap2 = Bitmap.createScaledBitmap(BMP,(INT)ht_px,(INT)wt_px,真正的);
byte []的rawArt = NULL;
位图艺术;
BitmapFactory.Options BFO =新BitmapFactory.Options();
如果(!f.exists()||!f.isDirectory())
{
返回歌曲;
}
文件[]文件= f.listFiles(新Mp3Filter());
的for(int i = 0; I< files.length;我++)
{
如果(文件[I] .isFile())
{
//mmr.setDataSource(文件[I] .getPath());
// rawArt = mmr.getEmbeddedPicture();
SongDetails细节=新SongDetails();
//如果(rawArt!= NULL)
// {
//bitmap2=BitmapFactory.de$c$cByteArray(rawArt,0,rawArt.length,BFO);
// bitmap2 = Bitmap.createScaledBitmap(bitmap2,(INT)ht_px,(INT)wt_px,真正的);
//detail.setIcon(bitmap2);
//}//其他
// {
detail.setIcon(bitmap2);
//}
detail.setSong(文件[I] .getName());
// detail.setArtist(文件[I] .getName());
// detail.setAlbum(文件[I] .getName());
//detail.setArtist(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST));
// detail.setAlbum(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM));
detail.setPath2(文件[I] .getPath());
songs.add(详细);
}
否则,如果(文件[I] .isDirectory())
{
songs.addAll(getSongsFromDirectory(文件[I]));
}
}返回歌曲;
}
@覆盖
公共无效onCreateContextMenu(文本菜单菜单,视图V,ContextMenuInfo menuInfo)
{
super.onCreateContextMenu(菜单,V,menuInfo);
信息=(AdapterContextMenuInfo)menuInfo;
menu.add(Menu.NONE,v.getId(),0,播放);
menu.add(Menu.NONE,v.getId(),0,删除);
menu.add(Menu.NONE,v.getId(),0,队列项);
}
@覆盖
公共布尔onContextItemSelected(菜单项项){
如果(item.getTitle()==播放){
}
否则,如果(item.getTitle()==删除){
}
否则,如果(item.getTitle()==队列项){
}
其他 {
返回false;
}
返回true;
}}
类Mp3Filter实现的FileFilter
{
公共布尔接受(档案文件)
{
返回(file.isDirectory()|| file.getName()的endsWith()|| file.getName()的endsWith(MP3)。的apk。);
}
}
日志
了java.lang.RuntimeException:Parcelable遇到IOException异常写作 序列化对象(名称=源$ C $ c.jazzplayer.SongDetails)
好吧,我实现它的一部分给你。你有你的SongDetails类添加所有其他属性:
MainActivity.java:
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main);
SongDetails Songinfo1 =新SongDetails();
Songinfo1.setSong(松1);
SongDetails Songinfo2 =新SongDetails();
Songinfo2.setSong(song2);
ArrayList的< SongDetails>名单=新的ArrayList< SongDetails>();
list.add(Songinfo1);
list.add(Songinfo2);
意向意图=新的意图(这一点,SecondActivity.class);
intent.putParcelableArrayListExtra(数据1,清单);
intent.putExtra(数据2,1);
startActivity(意向);
}
在您在其中检索歌曲的活动中,使用这样的:
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_asdf);
ArrayList的< SongDetails>歌曲= getIntent()getParcelableArrayListExtra(数据1)。
对于(SongDetails songDetails:歌曲){
Log.i(,songDetails.getSong());
}
}
您SongDetails类应该是这样的:
SongDetails:
公共类SongDetails实现Parcelable {
位图的图标;
弦之歌;
字符串的艺术家;
字符串专辑;
路径字符串;
INT icLauncher;
公共SongDetails(){
}
公共SongDetails(包裹中){
的String []数据=新的String [1];
in.readStringArray(数据);
this.song =数据[0];
}
公共字符串getSong(){
返回首歌曲;
}
公共无效setSong(弦之歌){
this.song =歌曲;
}
公共字符串getArtist(){
返回艺术家;
}
公共无效setArtist(字符串艺术家){
this.Artist =艺术家;
}
公共位图调用getIcon(){
返回图标;
}
公共无效的setIcon(位图位图){
this.icon =位图;
}
公共字符串getPath2(){
返回路径;
}
公共无效setPath2(字符串路径){
this.Path =路径;
}
公共字符串getAlbum(){
返回相册;
}
公共无效setAlbum(字符串专辑){
this.Album =专辑;
}
公共无效的setIcon(INT icLauncher){
this.icLauncher = icLauncher;
}
@覆盖
公众诠释describeContents(){
返回0;
}
@覆盖
公共无效writeToParcel(包裹DEST,INT标志){
dest.writeStringArray(新的String [] {this.song});
}
公共静态最终Parcelable.Creator CREATOR =新Parcelable.Creator(){
公共SongDetails createFromParcel(包裹中){
返回新SongDetails(中);
}
公共SongDetails [] newArray(INT尺寸){
返回新SongDetails【尺寸】;
}
};
}
The code
SngList.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView a, View v, int position, long id) {
Intent intent = new Intent(getActivity(), NowPlaying.class);
intent.putExtra("Data1",Songinfo);
intent.putExtra("Data2",position);
startActivity(intent);
}
});
code in the receiving class
Intent i = getIntent();
ArrayList<SongDetails> Songinfo2 = (ArrayList<SongDetails>)i.getSerializableExtra("Data1");
position=i.getIntExtra("Data2", 1);
code for songDetials
package sourcecode.jazzplayer;
import java.io.Serializable;
import android.graphics.Bitmap;
public class SongDetails implements Serializable{
Bitmap icon ;
String song;
String Artist;
String Album;
String Path;
int icLauncher;
public String getSong() {
return song;
}
public void setSong(String song) {
this.song = song;
}
public String getArtist() {
return Artist;
}
public void setArtist(String Artist) {
this.Artist = Artist;
}
public Bitmap getIcon() {
return icon;
}
public void setIcon(Bitmap bitmap) {
this.icon = bitmap;
}
public String getPath2() {
return Path;
}
public void setPath2(String Path) {
this.Path = Path;
}
public String getAlbum() {
return Album;
}
public void setAlbum(String Album) {
this.Album = Album;
}
public void setIcon(int icLauncher) {
this.icLauncher = icLauncher;
}
}
the whole code:
public class FragmentSongs extends Fragment implements Serializable {
AdapterView.AdapterContextMenuInfo info;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_song, container, false);
ListView SngList = (ListView) view.findViewById(R.id.SongList);
registerForContextMenu(SngList);
File f=new File("/system/");
//File f=new File("/sdcard/Music");
int j=0;int i=0;
final ArrayList<SongDetails> Songinfo = getSongsFromDirectory(f);
if (Songinfo.size()>0)
{
for( j=0; j<Songinfo.size();j++)
{
for ( i=j+1 ; i<Songinfo.size(); i++)
{
SongDetails a=Songinfo.get(i);
SongDetails b=Songinfo.get(j);
if(a.getSong().toLowerCase().compareTo(b.getSong().toLowerCase())<0)
{
Songinfo.set(i,b );
Songinfo.set(j,a);
}
}
}
SngList.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView a, View v, int position, long id) {
Intent intent = new Intent(getActivity(), NowPlaying.class);
intent.putExtra("Data1",Songinfo);
intent.putExtra("Data2",position);
startActivity(intent);
}
});
SngList.setAdapter(new CustomAdapter(Songinfo));
return view;
}
else return null;
}
public ArrayList<SongDetails> getSongsFromDirectory(File f)
{MediaMetadataRetriever mmr = new MediaMetadataRetriever();
ArrayList<SongDetails> songs = new ArrayList<SongDetails>();
Bitmap bitmap2;
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ab);
float ht_px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 100, getResources().getDisplayMetrics());
float wt_px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 100, getResources().getDisplayMetrics());
bitmap2 = Bitmap.createScaledBitmap(bmp, (int) ht_px, (int) wt_px, true);
byte[] rawArt = null;
Bitmap art;
BitmapFactory.Options bfo=new BitmapFactory.Options();
if (!f.exists() || !f.isDirectory())
{
return songs;
}
File[] files = f.listFiles(new Mp3Filter());
for(int i=0; i<files.length; i++)
{
if (files[i].isFile())
{
//mmr.setDataSource(files[i].getPath());
// rawArt = mmr.getEmbeddedPicture();
SongDetails detail=new SongDetails();
//if ( rawArt != null)
//{
//bitmap2=BitmapFactory.decodeByteArray(rawArt, 0, rawArt.length, bfo);
//bitmap2 = Bitmap.createScaledBitmap(bitmap2, (int) ht_px, (int) wt_px, true);
//detail.setIcon(bitmap2);
//}//else
//{
detail.setIcon(bitmap2);
//}
detail.setSong(files[i].getName());
// detail.setArtist(files[i].getName());
// detail.setAlbum(files[i].getName());
//detail.setArtist(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST));
// detail.setAlbum(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM));
detail.setPath2( files[i].getPath()) ;
songs.add(detail);
}
else if (files[i].isDirectory())
{
songs.addAll(getSongsFromDirectory(files[i]));
}
} return songs;
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo)
{
super.onCreateContextMenu(menu, v, menuInfo);
info = (AdapterContextMenuInfo) menuInfo;
menu.add(Menu.NONE, v.getId(), 0, "Play");
menu.add(Menu.NONE, v.getId(), 0, "Delete");
menu.add(Menu.NONE, v.getId(), 0, "Queue Item");
}
@Override
public boolean onContextItemSelected(MenuItem item) {
if (item.getTitle() == "Play") {
}
else if (item.getTitle() == "Delete") {
}
else if (item.getTitle() == "Queue Item") {
}
else {
return false;
}
return true;
}}
class Mp3Filter implements FileFilter
{
public boolean accept(File file)
{
return (file.isDirectory()||file.getName().endsWith(".apk")|| file.getName().endsWith(".Mp3"));
}
}
The Log
java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = sourcecode.jazzplayer.SongDetails)
Ok i implemented part of it for you. You have to add all the other properties of your SongDetails class:
MainActivity.java:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SongDetails Songinfo1 = new SongDetails();
Songinfo1.setSong("song1");
SongDetails Songinfo2 = new SongDetails();
Songinfo2.setSong("song2");
ArrayList<SongDetails> list = new ArrayList<SongDetails>();
list.add(Songinfo1);
list.add(Songinfo2);
Intent intent = new Intent(this, SecondActivity.class);
intent.putParcelableArrayListExtra("Data1", list);
intent.putExtra("Data2", 1);
startActivity(intent);
}
In the activity in which you are retrieving the songs, use this:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_asdf);
ArrayList<SongDetails> songs = getIntent().getParcelableArrayListExtra("Data1");
for(SongDetails songDetails : songs) {
Log.i("", songDetails.getSong());
}
}
Your SongDetails class should look like this:
SongDetails:
public class SongDetails implements Parcelable {
Bitmap icon;
String song;
String Artist;
String Album;
String Path;
int icLauncher;
public SongDetails() {
}
public SongDetails(Parcel in) {
String[] data = new String[1];
in.readStringArray(data);
this.song = data[0];
}
public String getSong() {
return song;
}
public void setSong(String song) {
this.song = song;
}
public String getArtist() {
return Artist;
}
public void setArtist(String Artist) {
this.Artist = Artist;
}
public Bitmap getIcon() {
return icon;
}
public void setIcon(Bitmap bitmap) {
this.icon = bitmap;
}
public String getPath2() {
return Path;
}
public void setPath2(String Path) {
this.Path = Path;
}
public String getAlbum() {
return Album;
}
public void setAlbum(String Album) {
this.Album = Album;
}
public void setIcon(int icLauncher) {
this.icLauncher = icLauncher;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeStringArray(new String[] { this.song });
}
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
public SongDetails createFromParcel(Parcel in) {
return new SongDetails(in);
}
public SongDetails[] newArray(int size) {
return new SongDetails[size];
}
};
}
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