android 的popwindow弹窗
16lz
2022-05-24
android的弹窗 常用:
popwindow
//初始化顶部导航popwindow private void initPopupWindow(View v) { View view = LayoutInflater.from(getContext()).inflate(R.layout.item_popup, null, false); TextView memory = (TextView) view.findViewById(R.id.popup_memory); TextView collect = (TextView) view.findViewById(R.id.popup_collect); TextView cache = (TextView) view.findViewById(R.id.popup_cache); TextView local = (TextView) view.findViewById(R.id.popup_local); //1.构造一个PopupWindow,参数依次是加载的View,宽高 final PopupWindow popWindow = new PopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, true); popWindow.setAnimationStyle(R.anim.anim_pop); //设置加载动画 //这些为了点击非PopupWindow区域,PopupWindow会消失的,如果没有下面的 //代码的话,你会发现,当你把PopupWindow显示出来了,无论你按多少次后退键 //PopupWindow并不会关闭,而且退不出程序,加上下述代码可以解决这个问题 popWindow.setTouchable(true); popWindow.setTouchInterceptor(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { return false; // 这里如果返回true的话,touch事件将被拦截 // 拦截后 PopupWindow的onTouchEvent不被调用,这样点击外部区域无法dismiss } }); popWindow.setBackgroundDrawable(new ColorDrawable(0x00000000)); //要为popWindow设置一个背景才有效 //设置popupWindow显示的位置,参数依次是参照View,x轴的偏移量,y轴的偏移量 popWindow.showAsDropDown(v, 0, -10); //设置popupWindow里的按钮的事件 memory.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(getContext(), HistoryActivity.class)); } }); collect.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(getContext(), CollectionActivity.class)); } }); cache.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(getContext(), DownloadActivity.class)); } }); local.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(getContext(), SignActivity.class)); } }); }
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