安卓:在TextView中直纹/卧式线 [英] Android: Ruled/horizonal lines in Textview
问题描述
我是新来的机器人。我有一个TextView,其内容将是动态的。我想说明一个水平线的文本每行之后。我寻觅了很多,发现它的EditText(<一href="http://stackoverflow.com/questions/8667506/how-to-use-ruled-horizontal-lines-to-align-text-in-edittext-in-android">How使用格/水平线条对齐文本的EditText在Android中?)。我是刨去绘制动态的TextView和一个水平线下他们。但我不知道我怎么可以检测线的一端。任何帮助将是非常美联社preciated。我希望有相同的效果的附加的图像<一href="http://stackoverflow.com/questions/8667506/how-to-use-ruled-horizontal-lines-to-align-text-in-edittext-in-android">How使用格/水平线条对齐文本的EditText在Android中?
I'm new to android. I have a TextView and its content will be dynamic. I want to show a horizontal line after each line of text. I have searched a lot and found it for EditText( How to use ruled/horizontal lines to align text in EditText in Android?). I was planing to draw dynamic TextView and a horizontal line under them. But I don't know how can I detect an end of line. Any help will be highly appreciated. I want to have the same effect as the attached image of How to use ruled/horizontal lines to align text in EditText in Android?
推荐答案
我使用的文本每行之间画线的方法的EditText ,然后我会在的EditText 不可编辑的设置 setKeyListener(空)可自定义的EditText对象,这样,在EditText上就像一个的TextView :)
I'm using the technique of drawing lines between each line of text in EditText and then I will make the EditText non-editable by setting setKeyListener(null) to the custom EditText object so that, the EditText acts like a TextView :)
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.STROKE);
mPaint.setColor(0x800000FF);
}
@Override
protected void onDraw(Canvas canvas) {
int count = getLineCount();
Rect r = mRect;
Paint paint = mPaint;
for (int i = 0; i < count; i++) {
int baseline = getLineBounds(i, r);
canvas.drawLine(r.left, baseline + 1, r.right, baseline + 1, paint);
}
super.onDraw(canvas);
}
}
现在使用的对象的 LinedEditText 类,你需要您的的TextView 并使其不可编辑的。
Now use object of LinedEditText class where you need your TextView and make it non-editable.
public class HorizontalLine extends Activity{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTitle("Android: Ruled/horizonal lines in Textview");
LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.VERTICAL);
LayoutParams textViewLayoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
LinedEditText et = new LinedEditText(this, null);
et.setText("The name of our country is Bangladesh. I am proud of my country :)");
et.setLayoutParams(textViewLayoutParams);
et.setKeyListener(null);
ll.addView(et);
this.setContentView(ll);
}
}
et.setKeyListener(空)使EditText上不可编辑的话,它就像一个TextView。
et.setKeyListener(null) makes the EditText non-editable so, it acts like a TextView.
如果您使用 et.setKeyListener(空)才把它只是不听键,但 用户可以看到光标在的EditText。如果你不希望这个游标只是禁用的EditText加入这一行:
If you use et.setKeyListener(null) only then it is just not listening to keys but user can see a cursor on the EditText. If you don't want this cursor just disable the EditText by adding this line:
et.setEnabled(false);
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