我使用 ArrayList 制作了一个歌曲列表,并且获得了所有信息,并且可以将其传递给第二个活动并在新页面上打开它。我想要的是当我单击歌曲列表时,它会在新页面中打开,新页面会显示歌曲的详细信息和图像。@Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView_Main=findViewById(R.id.listView_Main); final Song song1 = new Song("Love Story","Taylor Swift","September 12,2008", "$1.29"); Song song2 = new Song("Lover","Taylor Swift","August 23,2019", "$1.29" ); Song song3 = new Song("I Forgot That You Existed", "Taylor Swift", "August 23,2019", "$1.29"); Song song4 = new Song("The Archer", "Taylor Swift", "August 23,2019", "$1.29"); Song song5 = new Song("I Think He Knows","Taylor Swift", "August 23,2019", "$1.29"); final List<Song> songs = new ArrayList<>(); songs.add(song1); songs.add(song2); songs.add(song3); songs.add(song4); songs.add(song5); MainAdapter adapter = new MainAdapter(this, songs); listView_Main.setAdapter(adapter); listView_Main.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { Intent intent=new Intent(view.getContext(),SongDetailActivity.class); intent.putExtra("currentSong",(Serializable) songs.get(i)); startActivity(intent); } });}但我的问题是在第二个活动中,我不知道如何使用 setText 获取歌曲和图像的详细信息。因此,我在 String.xml 文件中制作了歌曲详细信息。我怎样才能在第二个活动中获得这些细节和图像?另外,我不知道如何获取第二个活动中歌曲列表的位置,我的意思是我单击的哪首歌曲的位置,并且它显示了我单击的那首歌曲的详细信息。//这里是歌曲详细信息的第二个活动。////// @Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_song_detail); textViewSongDetail=findViewById(R.id.textView_SongDetail); imageViewSongDetail=findViewById(R.id.image_SongDetail); Song currentSong=(Song)getIntent().getSerializableExtra("currentSong");}
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回首忆惘然
TA贡献1847条经验 获得超11个赞
首先,确保您已在模型类 Song 中实现了 Serialized。比你的代码可以正常工作。并接收您可以发送的位置 -
intent.putExtra("position", i); // to send
getIntent().getIntExtra("position", -1); //to receive (-1 is default value)
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