先上效果圖:

這個效果一開始我是想直接讓UI給個切圖,后來發現這樣不行,適配很差,達不到效果。所以就自己動手寫代碼,其實思路也很簡單:在這個布局的父布局上面再手動添加一個view(通常LinearLayout比較方便),然后把這個linearlayout的背景設置成#88000000,之后就是給這個linearlayout動態增加子view,初步效果就能達到。
下面直接上代碼:
public void showGuideView() { View view = getWindow().getDecorView().findViewById(R.id.activity_main); if (view == null) return; ViewParent viewParent = view.getParent(); if (viewParent instanceof FrameLayout) { final FrameLayout frameParent = (FrameLayout) viewParent;//整個父布局 final LinearLayout linearLayout = new LinearLayout(this);//新建一個LinearLayout linearLayout.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); linearLayout.setOrientation(LinearLayout.VERTICAL); linearLayout.setBackgroundResource(#88000000);//背景設置灰色透明 linearLayout.setGravity(Gravity.CENTER_HORIZONTAL); linearLayout.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { frameParent.removeView(linearLayout); } }); Rect rect = new Rect(); Point point = new Point(); nearby.getGlobalVisibleRect(rect, point); //獲得nearby這個控件的寬高以及XY坐標 nearby這個控件對應就是需要高亮顯示的地方 ImageView topGuideview = new ImageView(this); topGuideview.setLayoutParams(new ViewGroup.LayoutParams(rect.width(), rect.height())); topGuideview.setBackgroundResource(R.drawable.iv_topguide); Rect rt = new Rect(); getWindow().getDecorView().getWindowVisibleDisplayFrame(rt); topGuideview.setY(point.y - rt.top);//rt.top是手機狀態欄的高度 ImageView bottomGuideview = new ImageView(this); bottomGuideview.setLayoutParams(new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT)); bottomGuideview.setBackgroundResource(R.drawable.iv_bottomguide); bottomGuideview.setY(point.y + topGuideview.getHeight()); linearLayout.addView(topGuideview); linearLayout.addView(bottomGuideview); frameParent.addView(linearLayout); }}以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持武林網。
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