android中获得某个activity中的view

最新推荐文章于 2025-03-09 18:46:12 发布

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本文介绍了如何在Android应用程序中通过代码实现对特定Activity内的View进行操作，包括查找和控制，对于开发者进行界面交互编程具有实用价值。

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获得指定activity中的VIEW，通过代码的形式

public class GetActivityView {
	
	private Activity context;
	private View view;
	
	public GetActivityView(Activity context){
		this.context = context;
	}
	
	public List<View> getAllChildViews() {
		View view = context.getWindow().getDecorView();
		return getAllChildViews(view);
	}

	public List<View> getAllChildViews(View view) {
		List<View> allchildren = new ArrayList<View>();
		if (view instanceof ViewGroup) {
			ViewGroup vp = (ViewGroup) view;
			for (int i = 0; i < vp.getChildCount(); i++) {
				View viewchild = vp.getChildAt(i);
				String name = viewchild.getClass().getSimpleName();
				System.out.println(name);
				allchildren.add(viewchild);
				allchildren.addAll(getAllChildViews(viewchild));
			}
		}
		return allchildren;
	}
	
	public List<View> getAllChildViewsByName(View view,String name) {
		List<View> allchildren = new ArrayList<View>();
		if (view instanceof ViewGroup) {
			ViewGroup vp = (ViewGroup) view;
			for (int i = 0; i < vp.getChildCount(); i++) {
				View viewchild = vp.getChildAt(i);
				String viewName = viewchild.getClass().getSimpleName();
				if(viewName.equals(name)){
					allchildren.add(viewchild);
					allchildren.addAll(getAllChildViews(viewchild));
				}
			}
		}
		return allchildren;
	}
	
}