本文实例为大家分享了popupWindow实现悬浮半透明效果的具体代码，供大家参考，具体内容如下

如上图显示弹出一个半透明框

java代码：

//清空数据 private void ShowPopup() { LayoutInflater mLayoutInflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); ViewGroup mView = (ViewGroup) mLayoutInflater.inflate( R.layout.soft_calendar_popup, null, true); final PopupWindow popupWindow = new PopupWindow(mView, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, true); final RadioButton radio1 = (RadioButton) mView .findViewById(R.id.radio0); final RadioButton radio2 = (RadioButton) mView .findViewById(R.id.radio1); final RadioButton radio3 = (RadioButton) mView .findViewById(R.id.radio2); Button btn1 = (Button) mView.findViewById(R.id.button1); btn1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { //确定按钮实现的操作 popupWindow.dismiss(); } }); Button btn2 = (Button) mView.findViewById(R.id.button2); btn2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // 取消按钮实现的操作 popupWindow.dismiss(); } }); popupWindow.setBackgroundDrawable(new BitmapDrawable()); popupWindow.showAtLocation(findViewById(R.id.RelativeLayout1), Gravity.CENTER | Gravity.CENTER, 0, 0);//在屏幕的中间位置显示 popupWindow.update(); }

soft_calendar_popup.xml的内容：

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="460px" android:layout_height="423px" android:background="@drawable/soft_calendar_popup_bg" android:orientation="vertical" > <TextView android:id="@+id/textView1" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="30px" android:gravity="center" android:text="提示" android:textColor="@android:color/white" android:textSize="25dip" /> <RadioGroup android:id="@+id/radioGroup1" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="100px" android:layout_marginRight="100px" android:layout_marginTop="30px" > <RadioButton android:id="@+id/radio0" android:layout_width="match_parent" android:layout_height="wrap_content" android:checked="true" android:text="清除当日缓存" android:textSize="20dip" android:textColor="@android:color/white" /> <RadioButton android:id="@+id/radio1" android:textSize="20dip" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="清除当月缓存" android:textColor="@android:color/white" /> <RadioButton android:id="@+id/radio2" android:textSize="20dip" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="清除全部缓存" android:textColor="@android:color/white" /> </RadioGroup> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="15dip" android:gravity="center_horizontal" > <Button android:id="@+id/button1" android:layout_width="158px" android:layout_height="wrap_content" android:layout_marginRight="30dip" android:background="@drawable/btn2" android:gravity="center" android:text="确定" android:textColor="@android:color/white" /> <Button android:id="@+id/button2" android:layout_width="158px" android:layout_height="wrap_content" android:background="@drawable/btn1" android:gravity="center" android:text="返回" android:textColor="#0072D7" /> </LinearLayout> </LinearLayout>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。