自定义带边框imageView

首先，重写ImageView。

[java] view plaincopyprint?

1. package org.xxx.picUpload.util;
5. import android.content.Context;
6. import android.graphics.Canvas;
7. import android.graphics.Color;
8. import android.graphics.Paint;
9. import android.graphics.Rect;
10. import android.util.AttributeSet;
11. import android.widget.ImageView;
13. public class MyImageViewextends ImageView {
15. public MyImageView(Context context) {
16. super(context);
17. // TODO Auto-generated constructor stub
18. }
20. public MyImageView(Context context, AttributeSet attrs,
21. int defStyle) {
22. super(context, attrs, defStyle);
23. // TODO Auto-generated constructor stub
24. }
26. public MyImageView(Context context, AttributeSet attrs) {
27. super(context, attrs);
28. // TODO Auto-generated constructor stub
29. }
31. @Override
32. protected void onDraw(Canvas canvas) {//这里就是重写的方法了，想画什么形状自己动手
33. // TODO Auto-generated method stub
34. super.onDraw(canvas);
36. // 画边框
37. Rect rec = canvas.getClipBounds();
38. rec.bottom--;
39. rec.right--;
40. Paint paint = new Paint();
41. paint.setColor(Color.GRAY); //颜色
42. paint.setStyle(Paint.Style.STROKE);
43. paint.setStrokeWidth(5);
44. canvas.drawRect(rec, paint);
45. }
47. }

package org.xxx.picUpload.util;



import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.widget.ImageView;

public class MyImageView extends ImageView {

public MyImageView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}

public MyImageView(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}

public MyImageView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}

@Override
protected void onDraw(Canvas canvas) {   //这里就是重写的方法了，想画什么形状自己动手
// TODO Auto-generated method stub
super.onDraw(canvas);

// 画边框
Rect rec = canvas.getClipBounds();
rec.bottom--;
rec.right--;
Paint paint = new Paint();
paint.setColor(Color.GRAY);   //颜色
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(5);
canvas.drawRect(rec, paint);
}

}

然后 在xml文件中直接引用。

[html] view plaincopyprint?

1. <org.xxx.picUpload.util.MyImageView
2. android:id="@+id/imageView"
3. android:layout_width="400px"
4. android:layout_height="200px"/>

<org.xxx.picUpload.util.MyImageView
android:id="@+id/imageView"    
android:layout_width="400px"
android:layout_height="200px"/>

有图有真相（图片预览）：

原地址：http://blog.csdn.net/baolong47/article/details/7301160