今天在做一個列表的時候,發現某個textView無法擠下去,
就感覺特別蛋疼,後面網上發現有個適應高度的代碼:
原文鏈接:http://jeffreysambells.com/2010/04/04/android-textview-with-auto-sized-content
protected void onDraw (Canvas canvas) {
super.onDraw(canvas);
if (fit) _shrinkToFit();
}
protected void _shrinkToFit() {
int height = this.getHeight();
int lines = this.getLineCount();
Rect r = new Rect();
int y1 = this.getLineBounds(0, r);
int y2 = this.getLineBounds(lines-1, r);
float size = this.getTextSize();
if (y2 > height && size >= 8.0f) {
this.setTextSize(size - 2.0f);
_shrinkToFit();
}
}
所以自己就自定義了一個View繼承於TextView,代碼:
public class AutoFitTextView extends TextView {
public AutoFitTextView(Context context) {
this(context, null);
// TODO Auto-generated constructor stub
}
public AutoFitTextView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
// TODO Auto-generated constructor stub
}
public AutoFitTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
autoFitWidth();
}
/**
* 自適應寬度
*/
public void autoFitWidth() {
int lineCount = getLineCount();
float fontSize = this.getTextSize();
if(lineCount > 1) {
this.setTextSize(TypedValue.COMPLEX_UNIT_PX, fontSize - 2.0f);
autoFitWidth();
}
}
}
效果:
那個自適應高度的setTextSize,有個bug,因爲從getTextSize返回的是px,而setTextSize是默認的sp,所以這裏需要注意下