Android edittext无法复制文本

Question

我正在尝试复制粘贴应用程序的editText的内容。

不幸的是它不起作用，似乎这不是一个常见的问题。

我怀疑是一个愚蠢的理由，但仍然无法找到原因。以防万一这是我的xml代码：

    <?xml version="1.0" encoding="utf-8"?>
<com.adylitica.customlistview.CustomLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layoutContainer"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/default_enlightenment"
    android:orientation="horizontal" >

<com.adylitica.components.EditTextNotes
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/note"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@null"
    android:paddingBottom="25dp"
    android:paddingTop="10dp"
    android:textColor="#301e1b"
    android:textSize="24dp" />

<TextView
    android:id="@+id/time"
    android:layout_width="82dp"
    android:layout_height="65dp"
    android:background="@drawable/circle_background"
    android:gravity="center"
    android:textColor="@drawable/color_text"
    android:textSize="18dp" />

以下是扩展EditText的组件代码：

package com.adylitica.components;

import com.adylitica.activity.R;

import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.EditText;
import android.widget.TextView;

/**
 * Defines a custom EditText View that draws lines between each line of text that is displayed.
 */
public class EditTextNotes extends EditText {

private Context contextP;
private Rect mRect;
private Bitmap line;
public static int nbLines = 0;


public EditTextNotes(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    contextP = context;
    line = BitmapFactory.decodeResource(contextP.getResources(), R.drawable.line_thin);
    line = Bitmap.createBitmap(line, 0, 0, 2000, 1);

    mRect = new Rect();
}

public EditTextNotes(Context context, AttributeSet attrs) {
    super(context, attrs);

    contextP = context;
    line = BitmapFactory.decodeResource(contextP.getResources(), R.drawable.line_thin);
    line = Bitmap.createBitmap(line, 0, 0, 2000, 1);

    mRect = new Rect();

}

public EditTextNotes(Context context) {
    super(context);

    contextP = context;
    line = BitmapFactory.decodeResource(contextP.getResources(), R.drawable.line_thin);
    line = Bitmap.createBitmap(line, 0, 0, 2000, 1);

    mRect = new Rect();
}


@Override
protected void onDraw(Canvas canvas) {

    int count = getLineCount();

    Rect r = mRect;

    int baseline = 0;
    int addSize = 0;
    canvas.drawBitmap(line, 0, baseline, null);

    for (int i = 0; i < count; i++) {
        baseline = getLineBounds(i, r) + addSize;
        canvas.drawBitmap(line, 0, baseline, null);
        nbLines++;
    }

    super.onDraw(canvas);
}

}

P.S：否则editText的行为是好的，就像我可以得到焦点，写入...我只是无法选择整个文本并复制它。