如何使NumberPicker中的文字可點擊

Question

我想知道是否可以使NumberPicker中的文字可點擊並且在單擊白色區域或文本區域時表現相同。我之所以嘗試做這樣的事情，是因爲當我在酒吧中有很長的字符串時，選擇該區域變得非常困難。我附上我的代碼到目前爲止。

MainActivity.java

package com.yardimobileinterns.numberpicker; 

import android.os.Bundle; 
import android.support.v7.app.AppCompatActivity; 
import android.view.View; 
import android.widget.EditText; 

public class MainActivity extends AppCompatActivity { 

    private EditText editText; 
    private String[] values = {"University1", "University2", "University3"}; 

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

     editText = (EditText) findViewById(R.id.editText); 

     editText.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       editText.setMovementMethod(null); 
       editText.setSelection(editText.getText().length()); 

       showDialog(editText, values); 
      } 
     }); 

    } 

    public void showDialog(EditText editText, String[] values) { 
     EditTextDialogFragment editTextDialogFragment = EditTextDialogFragment.getNewInstance(editText,values); 
     editTextDialogFragment.show(getFragmentManager(), "dialog"); 
    } 

} 

EditTextDialogFragment.java

package com.yardimobileinterns.numberpicker; 

import android.app.DialogFragment; 
import android.os.Bundle; 
import android.view.Gravity; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.EditText; 
import android.widget.NumberPicker; 


public class EditTextDialogFragment extends DialogFragment { 

    public static final String EDIT_TEXT = "EDIT_TEXT"; 
    public static final String VALUES = "VALUES"; 


    private String[] mValues; 
    private NumberPicker numberPicker; 
    private EditText mEditText; 
    private String selectedValue; 


    public EditTextDialogFragment() { 

    } 

    public static EditTextDialogFragment getNewInstance(EditText editText, String[] values) { 
     EditTextDialogFragment editTextDialogFragment = new EditTextDialogFragment(); 

     Bundle bundle = new Bundle(); 

     bundle.putStringArray(VALUES, values); 
     editTextDialogFragment.setEditText(editText); 
     editTextDialogFragment.setArguments(bundle); 

     return editTextDialogFragment; 
    } 

    public void setEditText(EditText editText) { 
     mEditText = editText; 
    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setRetainInstance(true); 

     mValues = getArguments().getStringArray(VALUES); 
    } 

    @Override 
    public View onCreateView(LayoutInflater layoutInflater, ViewGroup viewGroup, Bundle savedInstanceState) { 

     View view = layoutInflater.inflate(R.layout.university_picker, viewGroup, false); 

     getDialog().getWindow().setGravity(Gravity.FILL_HORIZONTAL | Gravity.BOTTOM); 

     numberPicker = (NumberPicker) view.findViewById(R.id.numberPicker); 

     numberPicker.setMinValue(0); 

     selectedValue = (mValues.length == 0) ? "" : mValues[0]; 

     numberPicker.setMaxValue(mValues.length - 1); 

     numberPicker.setDisplayedValues(mValues); 

     numberPicker.setWrapSelectorWheel(false); 

     numberPicker.setClickable(true); 

     numberPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() { 
      @Override 
      public void onValueChange(NumberPicker picker, int oldVal, int newVal) { 
       selectedValue = mValues[newVal]; 
      } 
     }); 

     numberPicker.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       getDialog().dismiss(); 
       mEditText.setText(selectedValue); 
      } 
     }); 


     return view; 
    } 

} 

university_picker.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.yardimobileinterns.numberpicker.MainActivity" 
    android:background="#ffffff"> 

    <NumberPicker 
     android:id="@+id/numberPicker" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:descendantFocusability="blocksDescendants" 
     > 

    </NumberPicker> 

</RelativeLayout> 

下面是它的外觀： 謝謝！

Answer 1

我發現的實際解決方案是使用onTouch模擬onClick，以便點擊文本。它現在運作良好。

package com.yardimobileinterns.numberpicker; 

import android.app.DialogFragment; 
import android.os.Bundle; 
import android.view.Gravity; 
import android.view.LayoutInflater; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.EditText; 
import android.widget.NumberPicker; 


public class EditTextDialogFragment extends DialogFragment { 

    public static final String EDIT_TEXT = "EDIT_TEXT"; 
    public static final String VALUES = "VALUES"; 


    private String[] mValues; 
    private NumberPicker numberPicker; 
    private EditText mEditText; 
    private String selectedValue; 

    private int lastAction = -1; 

    public EditTextDialogFragment() { 

    } 

    public static EditTextDialogFragment getNewInstance(EditText editText, String[] values) { 
     EditTextDialogFragment editTextDialogFragment = new EditTextDialogFragment(); 

     editTextDialogFragment.setValues(values); 
     editTextDialogFragment.setEditText(editText); 

     return editTextDialogFragment; 
    } 

    public void setEditText(EditText editText) { 
     mEditText = editText; 
    } 

    public void setValues(String[] values) { 
     mValues = values; 
    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setRetainInstance(true); 
    } 

    @Override 
    public View onCreateView(LayoutInflater layoutInflater, ViewGroup viewGroup, Bundle savedInstanceState) { 

     View view = layoutInflater.inflate(R.layout.university_picker, viewGroup, false); 

     getDialog().getWindow().setGravity(Gravity.FILL_HORIZONTAL | Gravity.BOTTOM); 

     numberPicker = (NumberPicker) view.findViewById(R.id.numberPicker); 

     numberPicker.setMinValue(0); 

     selectedValue = (mValues.length == 0) ? "" : mValues[mValues.length/2]; 

     numberPicker.setMaxValue(mValues.length - 1); 

     numberPicker.setDisplayedValues(mValues); 

     numberPicker.setValue(mValues.length/2); 

     numberPicker.setWrapSelectorWheel(false); 

     numberPicker.setClickable(true); 

     numberPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() { 
      @Override 
      public void onValueChange(NumberPicker picker, int oldVal, int newVal) { 
       selectedValue = mValues[newVal]; 
      } 
     }); 


     numberPicker.setOnTouchListener(new View.OnTouchListener() { 
      @Override 
      public boolean onTouch(View v, MotionEvent event) { 
       boolean solution = false; 

       switch (event.getAction()) { 
        case (MotionEvent.ACTION_DOWN): 
         lastAction = MotionEvent.ACTION_DOWN; 
         solution = false; 
         break; 
        case (MotionEvent.ACTION_UP): 
         if (lastAction == MotionEvent.ACTION_DOWN) { 
          solution = true; 
         } 
         lastAction = MotionEvent.ACTION_UP; 
         break; 
        case (MotionEvent.ACTION_SCROLL): 
         lastAction = MotionEvent.ACTION_SCROLL; 
         solution = false; 
         break; 
        default: 
         lastAction = -1; 
         solution = false; 
         break; 
       } 

       if (solution) { 
        getDialog().dismiss(); 
        mEditText.setText(selectedValue); 
       } 

       return solution; 
      } 
     }); 

     return view; 
    } 
}