Question

我正在制作记事本应用，我想让edittext看起来像一个页面。我不知道该怎么做。我刚刚创建了一个edittext视图。

   <EditText
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/et_note"
    android:layout_below="@+id/tv_note"
    android:hint="Write a note..."/>

Answer 1

您可以制作这样的自定义Edittext 并在xml代码中使用这些

// XML代码

<com.example.lineedittextdemo.LineEditText
android:id="@+id/edit_notepad"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@null"
android:inputType="textMultiLine|textNoSuggestions"
android:minLines="10"
android:singleLine="false"
android:imeOptions="actionNone"
 />

// JAVA CODE

 public class LinedEditText extends EditText {
private Rect mRect;
private Paint mPaint;

// we need this constructor for LayoutInflater
public LinedEditText(Context context, AttributeSet attrs) {
    super(context, attrs);

    mRect = new Rect();
    mPaint = new Paint();
    mPaint.setStyle(Paint.Style.FILL_AND_STROKE);
    mPaint.setColor(Color.parseColor("#C0C0C0")); //SET YOUR OWN COLOR HERE
}

@Override
protected void onDraw(Canvas canvas) {
    //int count = getLineCount();

    int height = getHeight();
    int line_height = getLineHeight();

    int count = height / line_height;

    if (getLineCount() > count)
        count = getLineCount();//for long text with scrolling

    Rect r = mRect;
    Paint paint = mPaint;
    int baseline = getLineBounds(0, r);//first line

    for (int i = 0; i < count; i++) {

        canvas.drawLine(r.left, baseline + 1, r.right, baseline + 1, paint);
        baseline += getLineHeight();//next line
    }

    super.onDraw(canvas);
}
}

如何使edittext看起来像android中的页面

1 个答案: