如何为 ListView SecondActivity 创建 arrayList

Question

I created a List of String Array in the strings.xml so it can then be used in and Adapter, but I don't want the array stored in the string to be set as new-descriptive text when a listItemClick opens to a new activity. Please help me. I want to create another list of array as full-description which should be different from the one tied to the row.

Let me describe what I mean furthermore.

My row.xml shows an Image, TextView as Title , & another TextView as description . Now i have used this arrangement to generate constructor and getters for my Model.java

Now, if I click on a list of ListView items, it opens to a NewActivity.java there by feeding its data stored in string.xml as arrayList which is simply Title & description texts. But I want another text different from that discription to show in that NewActivity.java as brand-new-descrption text. That is what I'm struggling to do now.

Thanks

this is the MainActivity.java code

 public class MainActivity extends AppCompatActivity implements SearchView.OnQueryTextListener { private String TAG = "MainActivity ----- ; " ; // Store instance variables private int page; private ConsentForm form; ListView listView; ListViewAdapter adapter; List<String> title, description2,description; int[] icon; int [] soundfile; ArrayList<Model> arrayList = new ArrayList<Model>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ActionBar actionBar = getSupportActionBar(); actionBar.setTitle("Redeemed Songs"); //listview soundfile file for songs in position soundfile= new int[] {R.raw.song_1,R.raw.song_2,R.raw.song_3, R.raw.song_4,R.raw.song_5,R.raw.song_6,R.raw.song_7,R.raw.song_8,}; title = Arrays.asList(getResources().getStringArray(R.array.array_titles)); description = Arrays.asList(getResources().getStringArray(R.array.array_lyrics)); description2 = Arrays.asList(getResources().getStringArray(R.array.array_lyrics2)); icon = new int[]{ R.drawable.song, R.drawable.song, R.drawable.song, R.drawable.song,R.drawable.song,R.drawable.song, R.drawable.song,}; listView = findViewById(R.id.list); for (int i = 0; i< title.size(); i++){ Model model =new Model(title.get(i), description.get(i),description2.get(i), icon[i]); //bind all strings in an array arrayList.add(model); } //pass result to listview class adapter = new ListViewAdapter(this, arrayList); //bind the adapter to the listview class listView.setAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu, menu); MenuItem myActionMenuItem = menu.findItem(R.id.action_search); SearchView searchView = (SearchView)myActionMenuItem.getActionView(); searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String s) { return false; } @Override public boolean onQueryTextChange(String s) { if (TextUtils.isEmpty(s)){ adapter.filter(""); listView.clearTextFilter(); } else { adapter.filter(s); } return true; } }); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id==R.id.action_settings){ Toast.makeText(this, "Settings Selected", Toast.LENGTH_SHORT).show(); startActivity(new Intent(this, Main2Activity.class)); return true; //do your funtionality here } else if (id==R.id.action_howtouse){ Toast.makeText(this, "How-To", Toast.LENGTH_SHORT).show(); startActivity(new Intent(this, Main3Activity.class)); return true; //do your funtionality here }else if (id==R.id.action_favorites){ Toast.makeText(this, "Favorites Selected", Toast.LENGTH_SHORT).show(); startActivity(new Intent(this, Main3Activity.class)); return true; //do your funtionality here } else if (id==R.id.action_developers){ Toast.makeText(this, "About", Toast.LENGTH_SHORT).show(); startActivity(new Intent(this, Main4Activity.class)); return true; //do your funtionality here } return super.onOptionsItemSelected(item); } @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { return false; } }

This is the ListViewAdapter.java

 public class ListViewAdapter extends BaseAdapter{ //Variables Context mContext; LayoutInflater inflater; List<Model> modellist; ArrayList<Model> arrayList; int [] soundfile; //Constructor public ListViewAdapter(Context context, List<Model> modellist) { mContext = context; this.modellist = modellist; inflater = LayoutInflater.from(mContext); this.arrayList = new ArrayList<Model>(); this.arrayList.addAll(modellist); } public class ViewHolder{ TextView mTitleTv, mDescTv; ImageView mIconTv; MediaPlayer mediaPlayer; } @Override public int getCount() { return modellist.size(); } @Override public Object getItem(int i) { return modellist.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(final int i, View view, ViewGroup parent) { final ViewHolder holder; if (view==null){ holder = new ViewHolder(); view = inflater.inflate(R.layout.row, null); //locate the views in row.xml holder.mTitleTv = (TextView) view.findViewById(R.id.mainTitle); holder.mDescTv = (TextView) view.findViewById(R.id.mainDesc); holder.mIconTv = view.findViewById(R.id.mainIcon); view.setTag(holder); } else { holder = (ViewHolder)view.getTag(); } //set the result into textview holder.mTitleTv.setText(modellist.get(i).getTitle()); holder.mDescTv.setText(modellist.get(i).getDesc()); //Set the result in imagview holder.mIconTv.setImageResource(modellist.get(i).getIcon()); //listview soundfile file for songs in position soundfile= new int[] {R.raw.song_1,R.raw.song_2,R.raw.song_3, R.raw.song_4,R.raw.song_5,R.raw.song_6,R.raw.song_7,R.raw.song_8,}; //listview item clicks view.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { //code later Intent intent = new Intent(mContext, NewActivity.class); intent.putExtra("position", getViewTypeCount()); intent.putExtra("actionBarTitle", modellist.get(i).getTitle()); intent.putExtra("contentTv", modellist.get(i).getDesc()); mContext.startActivity(intent); } }); return view; } //filter public void filter(String charText){ charText = charText.toLowerCase(Locale.getDefault()); modellist.clear(); if (charText.length()==0){ modellist.addAll(arrayList); } else { for (Model model : arrayList){ if (model.getTitle().toLowerCase(Locale.getDefault()).contains(charText)){ modellist.add(model); } } } notifyDataSetChanged(); } }

This is the String.xml

 <resources> <string name="app_name">Redeemed Songs</string> <string-array name="array_lyrics"> <item>This song lyrics 1</item> <item>This song lyrics 2</item> </string-array> <string-array name="array_lyrics2"> <item>This brand new description for song lyrics 1</item> <item>This brand new description for song lyrics 1</item> </string-array> <string-array name="array_titles"> <item>Song 001</item> <item>Song 002</item> </string-array> </resources>

Answer 1

Add it to your Model as attribute

class Model{

your variable
.
.
.
String brandNewDesc;


public String getBrandNewDesc(){

return brandNewDesc;
}
public void setBrandNewDesc(String description){

brandNewDesc =description;
}

}

and use

   //listview item clicks
    view.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //code later
            Intent intent = new Intent(mContext, NewActivity.class);
            intent.putExtra("position", getViewTypeCount());
            intent.putExtra("actionBarTitle", modellist.get(i).getTitle());
            intent.putExtra("contentTv", modellist.get(i).getDesc());
            **intent.putExtra("brandNewDesc", modellist.get(i).getBrandNewDesc());**

            mContext.startActivity(intent);


        }
    });