Android自定义TextView虚线[关闭]

Question

我从很多天开始尝试，但没有得到任何解决方案。我参考了这个 Android:Draw line on a textview 我试图在文本视图中创建虚线，完成它，工作正常，但我想添加虚线直到文本视图包含的文本长度，如果文本视图有一行文本，那么它工作正常但是如果文本视图有多行文本，然后对于文本一半或小于屏幕宽度的行，然后也出现虚线，我不想要.... 我用Paint画虚线......请帮助我...... 提前致谢

Answer 1

靠题，在里面做的，试着写在类LinedEditText的构造函数里

mPaint = new Paint();
    mPaint.setARGB(255, 0, 0, 0);
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setPathEffect(new DashPathEffect(new float[] {10,10}, 0));

而不是

mPaint = new Paint();
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setColor(0x800000FF);

编辑：

请再告诉我一次，你想要这样吗：

或者这个：

编辑：

主活动：

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    LinearLayout ll = new LinearLayout(this);
    ll.setOrientation(LinearLayout.VERTICAL);
    LayoutParams textViewLayoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

    String text = "Sample Sample Sample Sample Sample Sample Sample Sample Sample Sample";

    LinedEditText et = new LinedEditText(this, null, text);
    et.setText(text);
    et.setLayoutParams(textViewLayoutParams);
    et.setKeyListener(null);

    ll.addView(et);

    this.setContentView(ll);
}

LinedEditText：

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

public LinedEditText(Context context, AttributeSet attrs, String text) {
    super(context, attrs);
    this.text = text;

    mRect = new Rect();
    mPaint = new Paint();
    mPaint.setARGB(255, 0, 0, 0);
    mPaint.setStyle(Style.STROKE);
    mPaint.setPathEffect(new DashPathEffect(new float[] { 10, 10 }, 0));
}

@Override
protected void onDraw(Canvas canvas) {
    Rect r = mRect;
    Paint paint = mPaint;

    int lineCount = getLineCount();
    int size = getLayout().getLineStart(lineCount-1);

    String str = getText().toString().substring(size);

    float densityMultiplier = getContext().getResources().getDisplayMetrics().density;
    float scaledPx = 20 * densityMultiplier;
    paint.setTextSize(scaledPx);
    float i = paint.measureText(str);

    for (int k = 0; k < lineCount-1; k++) {
        int baseline = getLineBounds(k, r);
        canvas.drawLine(r.left, baseline + 2, r.right, baseline + 2, paint);
    }

    int baseline = getLineBounds(lineCount-1, r);
    canvas.drawLine(r.left, baseline + 2, i, baseline + 2, paint);

    super.onDraw(canvas);
}
}