將選定行的內容傳遞給另一個活動

Question

任何人都可以告訴我如何將自定義viewList中的選定行的值傳遞給android中的另一個活動。我的意思是我有一個自定義的ListView，它有2個textView和一個複選框。當用戶選中複選框並點擊提交按鈕時，我想存儲2個textView字段的值並將其傳遞給下一個活動。傳遞給活動不是問題。問題是我不知道如何存儲檢查行的值。 代碼粘貼在下面。

import java.util.ArrayList; 
import java.util.List; 

import android.app.Activity; 
import android.content.ContentResolver; 
import android.content.Context; 
import android.content.Intent; 
import android.database.Cursor; 
import android.os.Bundle; 
import android.provider.ContactsContract; 
import android.util.Log; 
import android.util.SparseBooleanArray; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.ViewGroup; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.CheckBox; 
import android.widget.CompoundButton; 
import android.widget.ListView; 
import android.widget.TextView; 
import android.widget.Toast; 

public class contacts extends Activity implements OnItemClickListener { 
    static final String TAG = "contacts"; 
    ArrayList<String> contactName = new ArrayList<String>(); 
    ArrayList<String> contactNumber = new ArrayList<String>(); 
    ArrayList<String> checkboxArray = new ArrayList<String>(); 
    MyAdapter myAdapter; 
    Button AddNumber; 
    String numberIntent; 
    View vi; 
    ListView listView; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.listview); 

     getAllContacts(this.getContentResolver()); 
     listView = (ListView) findViewById(R.id.lists); 
     myAdapter = new MyAdapter(); 
     listView.setAdapter(myAdapter); 
     listView.setOnItemClickListener(this); 
     listView.setItemsCanFocus(false); 
     listView.setTextFilterEnabled(true); 
     // adding 
     AddNumber = (Button) findViewById(R.id.AddNumbers); 
     AddNumber.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       StringBuilder checkedContacts = new StringBuilder(); 
       Log.d(TAG, "onClick" + myAdapter.mCheckStates.size()); 
       for (int i = 0; i < contactName.size(); i++) 

       { 
        if (myAdapter.mCheckStates.get(i) == true) { 
         checkedContacts.append(contactName.get(i).toString()); 
         checkedContacts.append("\n"); 

        } else { 
         Log.d(TAG, "No OnClick" + contactName.get(i).toString()); 
        } 

       } 

       Toast.makeText(contacts.this, checkedContacts, 
         Toast.LENGTH_LONG).show(); 

       SparseBooleanArray checked = listView.getCheckedItemPositions(); 

      } 
     }); 

    } 

    @Override 
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 
     myAdapter.toggle(arg2); 
    } 

    public void getAllContacts(ContentResolver cr) { 

     Cursor cursor = cr.query(
       ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, 
       null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME 
         + " COLLATE LOCALIZED ASC"); 
     while (cursor.moveToNext()) { 
      String name = cursor 
        .getString(cursor 
          .getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); 
      String phoneNumber = cursor 
        .getString(cursor 
          .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
      Log.d(TAG, "getAllContacts" + phoneNumber); 
      contactName.add(name); 
      contactNumber.add(phoneNumber); 

     } 

     cursor.close(); 
     Intent in = new Intent(this, TrackLogic.class); 
     in.putExtra("contact", contactName.toArray()); 

     in.putExtra("contact1", contactNumber.toArray()); 
    } 

    class MyAdapter extends BaseAdapter implements 
      CompoundButton.OnCheckedChangeListener { 
     private SparseBooleanArray mCheckStates; 
     LayoutInflater mInflater; 
     TextView phoneView, contactView; 
     CheckBox checkBox; 

     MyAdapter() { 
      mCheckStates = new SparseBooleanArray(contactName.size()); 
      mInflater = (LayoutInflater) contacts.this 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     } 

     @Override 
     public int getCount() { 
      return contactName.size(); 
     } 

     @Override 
     public Object getItem(int position) { 
      return position; 
     } 

     @Override 
     public long getItemId(int position) { 

      return 0; 
     } 

     @Override 
     public View getView(final int position, View convertView, 
       ViewGroup parent) { 
      vi = convertView; 
      if (convertView == null) 
       vi = mInflater.inflate(R.layout.row, null); 
      contactView = (TextView) vi.findViewById(R.id.contact_name); 
      phoneView = (TextView) vi.findViewById(R.id.phone_number); 
      checkBox = (CheckBox) vi.findViewById(R.id.checkBox_id); 
      contactView.setText(contactName.get(position)); 
      phoneView.setText(contactNumber.get(position)); 
      checkBox.setTag(position); 
      checkBox.setChecked(mCheckStates.get(position, false)); 
      checkBox.setOnCheckedChangeListener(this); 


      return vi; 
     } 

     public boolean isChecked(int position) { 

      return mCheckStates.get(position, false); 
     } 

     public void setChecked(int position, boolean isChecked) { 
      mCheckStates.put(position, isChecked); 
      Log.d(TAG, "setChecked"); 
      notifyDataSetChanged(); 
     } 

     public void toggle(int position) { 
      setChecked(position, !isChecked(position)); 
     } 

     @Override 
     public void onCheckedChanged(CompoundButton buttonView, 
       boolean isChecked) { 

      mCheckStates.put((Integer) buttonView.getTag(), isChecked); 
     } 
    } 
} 

任何幫助將不勝感激..謝謝！

Answer 1

如果你要使用共享的首選項（可能是個好主意） - 這些方針的東西可能是你在找什麼：

//in caller activity (save shared prefs value) ... 
String phone = phoneView.getText().toString(); 

private SharedPreferences prefs; 
prefs = getSharedPreferences("yourPrefName", Context.MODE_PRIVATE); 
SharedPreferences.Editor editor = prefs.edit(); 
editor.putString("phone", phone); 
editor.commit(); 


//in called activity ... 
private SharedPreferences prefs; 
prefs = getSharedPreferences("yourPrefName", Context.MODE_PRIVATE); 
String phone=prefs.getString("phone", null); //will be null if "phone" not found 

希望這有助於...

Answer 2

Android爲存儲持久性數據提供了幾種不同的選項。它們記錄在以下鏈接中：http://developer.android.com/guide/topics/data/data-storage.html

您可能希望從基本SharedPreferences實施開始，然後從此處開始。