android开发如何增大控件的可点击区域


   在项目开发工程中,发现有时控件比较小,比如checkBox,ImageView等等,此时需要增大控件的可点击区域:
/**
	 * 增加控件的可点击范围,最大范围只能是父布局所包含的的区域
	 */
	public static void addDefaultScreenArea(final View view, final int top,final int bottom,final int left,final int right) { // 增大checkBox的可点击范围
		final View parent = (View) view.getParent();
		parent.post(new Runnable() {
			public void run() {
				
				 Rect bounds = new Rect();  
	                view.setEnabled(true);  
	                view.getHitRect(bounds);  
	  
	                bounds.top -= top;  
	                bounds.bottom += bottom;  
	                bounds.left -= left;  
	                bounds.right += right;  
	  
	                TouchDelegate touchDelegate = new TouchDelegate(bounds, view);  
	  
	                if (View.class.isInstance(view.getParent())) {  
	                    ((View) view.getParent()).setTouchDelegate(touchDelegate);  
	                }  
			}
		});

	}

   发现这里的解释更加详细,可参考:http://blog.csdn.net/tongcpp/article/details/23450975

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