简单extends textView让其四周边框改变
希望耐心看完http://developer.android.com/intl/fr/guide/topics/ui/custom-components.html
你会有收获 因为继承控件根据需求不同 层次不同。
我们这里只是想改变texyView 四周的边框让其四周成为简单线
package samples.test; public class MyTextView extends TextView { public MyTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } public MyTextView(Context context, AttributeSet attrs) { super(context, attrs); } public MyTextView(Context context) { super(context); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); Rect rect = new Rect(); Paint paint = new Paint(); paint.setStyle(Paint.Style.STROKE); paint.setColor(Color.WHITE); paint.setStrokeWidth(3); getLocalVisibleRect(rect); canvas.drawRect(rect, paint); } }
然后在layout xml中我使用的是main.xml 然后在里面加入
<samples.test.MyTextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" />
http://dl.iteye.com/upload/attachment/190574/f044d5da-c877-3fc8-bd4f-2688b73f8dae.jpg
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