如何在android中以编程方式查找TextView的文本区域(高度/宽度)

Question

我有一个EditText,一个Button和一个TextView.单击该按钮时,textview显示以edittext编写的文本.是否可以根据文本找到占用的textview的大小.即如果它有三个字符" abc ",现在是什么宽度,如果它有5个字符,如" abcde ",那么宽度是多少？

Answer 1

Rect bounds = new Rect();
Paint textPaint = textView.getPaint();
textPaint.getTextBounds(text,0,text.length(),bounds);
int height = bounds.height();
int width = bounds.width();

要么

textView.setText("bla");
textView.measure(0, 0);
textView.getMeasuredWidth();
textView.getMeasuredHeight();

Answer 2

请试试这个:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    TextView edit = (TextView) findViewById(R.id.edit);
    edit.setTextSize(20);       
    edit.setText("Hello, world");       
    edit.measure(0, 0);
    int width = edit.getMeasuredWidth();
    Log.w("width", width.toString());
}

在获得宽度之前,您必须测量视图/标签/文本编辑.如果这不起作用,请告诉我.

Answer 3

TextView txt = new TextView(mContext);
txt.setText("Some Text)";
int height = txt.getLineCount() *  txt.getLineHeight();
int width = txt.getWidth();