Android的列表視圖本期特價貨品向左滑動和向右滑動以獲得TimePicker和DatePicker的

Question

所以，當我幻燈片上我希望得到一個TimePicker的項目，當離開我向右滑動我希望得到一個DatePicker的。這是在MainActivity，並希望你得到的答案;）

package com.example.dailyplanner; 


    class MyDbHelper extends SQLiteOpenHelper { 

     private static final String DB_NAME = "mydb"; 
     private static final int DB_VERSION = 1; 

     public static final String TABLE_NAME = "TaskTbl"; 
     public static final String COL_TXT = "Text"; 
     public static final String COL_DATE = "Date"; 
     public static final String COL_TIME = "Time"; 
     private static final String STRING_CREATE = "CREATE TABLE " + TABLE_NAME + " (_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " + COL_TXT + " VARCHAR(250), " + COL_DATE + " VARCHAR(20), " + COL_TIME + " VARCHAR(20));"; 


     public MyDbHelper(Context context) { 
      super(context, DB_NAME, null, DB_VERSION); 
     } 

     @Override 
     public void onCreate(SQLiteDatabase db) { 
      db.execSQL(STRING_CREATE); 
      ContentValues cv = new ContentValues(2); 
      cv.put(COL_TXT, "New Entry"); 
      db.insert(TABLE_NAME, null, cv); 
     } 


     @Override 
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
      db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME); 
      onCreate(db); 
     } 
    } 


public class MainActivity extends ListActivity { 

    public static final int RESULT_CODE = 1; //numri qe e percakton se me cfar kodi do percillet rezultati nga nje activity ne tjetren 


    MyDbHelper mHelper; 
    SQLiteDatabase mDb; 
    Cursor mCursor; 
    SimpleCursorAdapter mAdapter; 
    Intent weather; 
    Intent i; 
    String text; 
    String date; 
    String time; 
    ListView mList; 
    Intent nTaskScreen; 


    public TextView timeText; 
    public TextView dateText; 
    public EditText taskText; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     getWindow().setFormat(PixelFormat.RGBA_8888); 
     getWindow().addFlags(WindowManager.LayoutParams.FLAG_DITHER); 
     setContentView(R.layout.activity_main); 

     timeText = (TextView) findViewById(R.id.timeTxt); 
     dateText = (TextView) findViewById(R.id.dateTxt); 
     taskText = (EditText) findViewById(R.id.editText1); 

     mHelper = new MyDbHelper(getApplicationContext()); 

     Button showBtn = (Button) findViewById(R.id.shTask); 
     showBtn.setOnClickListener(new OnClickListener() { 

      public void onClick(View v) { 


      } 
     }); 


     Button nTaskBtn = (Button) findViewById(R.id.nTask); 
     nTaskBtn.setOnClickListener(new OnClickListener() { 

      public void onClick(View v) { 

       nTaskScreen = new Intent(MainActivity.this, new_task.class); 
       startActivityForResult(nTaskScreen, RESULT_CODE); 

      } 
     }); 

     Button wthrBtn = (Button) findViewById(R.id.wthrBtn); 
     registerForContextMenu(wthrBtn); 


     mList = (ListView) findViewById(id.list); 

     // I implemented here the code from the Link 

    } 

    public void onResume() { 
     super.onResume(); 
     mDb = mHelper.getWritableDatabase(); 
     String[] columns = new String[] { 
      "_id", MyDbHelper.COL_TXT, MyDbHelper.COL_TIME 
     }; 
     mCursor = mDb.query(MyDbHelper.TABLE_NAME, columns, null, null, null, null, null, null); 
     String[] headers = new String[] { 
      MyDbHelper.COL_TXT, MyDbHelper.COL_TIME 
     }; 
     mAdapter = new SimpleCursorAdapter(this, android.R.layout.two_line_list_item, 
      mCursor, headers, new int[] { 
      android.R.id.text1, android.R.id.text2 
     }); 
     mList.setAdapter(mAdapter); 
    } 


    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     if (resultCode == RESULT_CODE) { 

      String text = data.getStringExtra("text"); 
      String date = data.getStringExtra("date"); 
      String time = data.getStringExtra("time"); 

      Toast.makeText(this, "Registration was successfull! \nTask: " + text + "\nOn: " + date + "\nat:" + time, Toast.LENGTH_LONG).show(); 

      ContentValues cv = new ContentValues(2); 
      cv.put(MyDbHelper.COL_TXT, text.toString()); 
      //cv.put(MyDbHelper.COL_DATE, date); //Insert 'now' as the date 
      cv.put(MyDbHelper.COL_TIME, time); 

      mDb.insert(MyDbHelper.TABLE_NAME, null, cv); 
      mCursor.requery(); 
      mAdapter.notifyDataSetChanged(); 
      text = null; 

      //mDb.execSQL("INSERT INTO TaskTbl (text,time,date) VALUES(" + "'" + text + "', '" + time + "', '" + date + "');");  

     } 
     super.onActivityResult(requestCode, resultCode, data); 

    } 
} 

Answer 1

我已經做了樣品給你

注：

1. 如果您使用的是ListActivity，那麼xml中的ListView應具有編號android:id="@android:id/list"。

2. 檢查我的示例代碼，並根據您的代碼實現相同。

3. 在我已經評論過的地方調用TimePicker和DatePicker。

` 公共類MyListActivity擴展ListActivity實現OnTouchListener {

float historicX = Float.NaN, historicY = Float.NaN; 
static final float TRIGGER_DELTA = 50; // Number of pixels to travel till 
             // trigger 
private GestureDetector gestureDetector; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    gestureDetector = new GestureDetector(new SwipeGestureDetector()); 

    Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, 
      new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.PHOTO_ID }, null, 
      null, null); 
    startManagingCursor(cursor); 

    // the desired columns to be bound 
    String[] columns = new String[] { ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.PHOTO_ID }; 
    // the XML defined views which the data will be bound to 
    int[] to = new int[] { R.id.name_entry, R.id.number_entry }; 

    SimpleCursorAdapter mAdapter = new SimpleCursorAdapter(this, R.layout.list_example_entry, cursor, columns, to); 
    setListAdapter(mAdapter); 
    findViewById(android.R.id.list).setOnTouchListener(this); 

} 

public void onResume() { 
    super.onResume(); 
} 

enum Direction { 
    LEFT, RIGHT; 
} 

interface OnSlideCompleteListener { 
    void onSlideComplete(Direction dir); 
} 

@Override 
public boolean onTouch(View v, MotionEvent event) { 

    if (gestureDetector.onTouchEvent(event)) { 
      return true; 
     } 
     return super.onTouchEvent(event); 
} 

public void onSlideComplete(Direction direction) { 

    if (Direction.LEFT == direction) { 
     Log.d("SWIPE LEFT", "LEFT"); 
     // Invoke Time Picker here 
    } else if (direction == Direction.RIGHT) { 
     Log.d("SWIPE RIGHT", "RIGHT"); 
     // Invoke Date Picker here 
    } 
} 

// Private class for gestures 
    private class SwipeGestureDetector extends SimpleOnGestureListener { 
    // Swipe properties, you can change it to make the swipe 
    // longer or shorter and speed 
    private static final int SWIPE_MIN_DISTANCE = 120; 
    private static final int SWIPE_MAX_OFF_PATH = 200; 
    private static final int SWIPE_THRESHOLD_VELOCITY = 200; 

    @Override 
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 
     try { 
     float diffAbs = Math.abs(e1.getY() - e2.getY()); 
     float diff = e1.getX() - e2.getX(); 

     if (diffAbs > SWIPE_MAX_OFF_PATH) 
      return false; 

     // Left swipe 
     if (diff > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 
      onSlideComplete(Direction.LEFT); 

     // Right swipe 
     } else if (-diff > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { 
      onSlideComplete(Direction.RIGHT); 
     } 
     } catch (Exception e) { 
     Log.e("YourActivity", "Error on gestures"); 
     } 
     return false; 
    } 
    } 

} `