其实PopupWindow在设置了背景图片以后，同样可以点击背景消失.
问题:有个问题一直没有解决，当PopupWindow有背景图片，并且带了动画效果以后，isShowing()会有异常情况出现.
关于这块，专门敲了一些示例代码，之前一阵子很疑惑有些PopupWindow带一个小箭头，有些就没有，研究之后才发现原来是背景图片的原因，瞬间就醉了- - .//
alertdialg
@Override
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.pop_no_img_a://系统自带
// 简单的android AlertDialog
new AlertDialog.Builder(this)
.setTitle("标题")
.setMessage("简单消息框")
.setPositiveButton("确定", null)
.show();
break;
case R.id.pop_no_img_b://自定义
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
alertDialog.show();
Window window = alertDialog.getWindow();
window.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL);
//设置透明度
WindowManager.LayoutParams lp = window.getAttributes();
lp.alpha = 0.6f;
window.setContentView(R.layout.activity_alertdialog);
break;
case R.id.pop_no_img_c://自定义附带动画
final AlertDialog alertDialog1 = new AlertDialog.Builder(this).create();
alertDialog1.show();
Window window1 = alertDialog1.getWindow();
window1.setGravity(Gravity.TOP);
window1.setWindowAnimations(R.style.AnimationFade);//动画效果
window1.setContentView(R.layout.activity_alertdialog);
break;
default:
break;
}
}
PopupWindow_noimgActivity 没有图片
package com.example.activity;
import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.PopupWindow;
import android.widget.Toast;
import com.example.dialogandpopupwindow.R;
import com.example.myview.MyButton;
public class PopupWindow_noimgActivity extends Activity implements OnClickListener{
private View view;
private PopupWindow popupWindow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pop_no_img);
initPopUpWindow();
findViewById(R.id.pop_no_img_a).setOnClickListener(this);
findViewById(R.id.pop_no_img_b).setOnClickListener(this);
findViewById(R.id.pop_no_img_c).setOnClickListener(this);
}
@Override
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.pop_no_img_a:
if(popupWindow.isShowing()){
popupWindow.dismiss();
}else{
popupWindow.showAsDropDown(arg0);
}
break;
case R.id.pop_no_img_b:
if(popupWindow.isShowing()){
popupWindow.dismiss();
}else{
popupWindow.showAsDropDown(arg0, 50, 100);
}
break;
case R.id.pop_no_img_c:
if(popupWindow.isShowing()){
popupWindow.dismiss();
}else{
popupWindow.showAtLocation(findViewById(R.id.pop_no_main) , Gravity.CENTER, 0, 0);
}
break;
case R.id.pop_no_mubut1:
Toast.makeText(this, "删除", Toast.LENGTH_LONG).show();
break;
case R.id.pop_no_mubut2:
Toast.makeText(this, "网络", Toast.LENGTH_LONG).show();
break;
default:
break;
}
}
private void initPopUpWindow() {
view = this.getLayoutInflater().inflate(R.layout.pop_no_img, null);
popupWindow = new PopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
MyButton myButton = (MyButton) view.findViewById(R.id.pop_no_mubut1);
myButton.setImageSource(R.drawable.menu_delete);
myButton.setTextview("删除");
myButton.setOnClickListener(this);
MyButton myButton1 = (MyButton) view.findViewById(R.id.pop_no_mubut2);
myButton1.setImageSource(R.drawable.menu_net);
myButton1.setTextview("网络");
myButton1.setOnClickListener(this);
}
}
带图片
package com.example.activity;
import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.PopupWindow;
import android.widget.Toast;
import com.example.dialogandpopupwindow.R;
import com.example.myview.MyButton;
public class PopupWindow_withimgActivity extends Activity implements OnClickListener{
private View view;
private PopupWindow popupWindow;
private Button but1,but2,but3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pop_no_img);
initPopUpWindow();
but1 = (Button) findViewById(R.id.pop_no_img_a);
but2 = (Button) findViewById(R.id.pop_no_img_b);
but3 = (Button) findViewById(R.id.pop_no_img_c);
but1.setOnClickListener(this);
but1.setText("控件下方显示");
but2.setOnClickListener(this);
but2.setText("侧滑出现退出");
but3.setOnClickListener(this);
but3.setText("中间出现消失");
}
@Override
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.pop_no_img_a:
if(popupWindow.isShowing()){
popupWindow.dismiss();
}else{
popupWindow.showAsDropDown(arg0);
}
break;
case R.id.pop_no_img_b:
popupWindow.setAnimationStyle(R.style.AnimationFade);
if(popupWindow.isShowing()){
popupWindow.dismiss();
}else{
popupWindow.showAsDropDown(arg0, 50, 100);
popupWindow.update();
}
break;
case R.id.pop_no_img_c:
popupWindow.setAnimationStyle(R.style.AnimationPpo);
if(popupWindow.isShowing()){
popupWindow.dismiss();
}else{
popupWindow.showAtLocation(findViewById(R.id.pop_no_main) , Gravity.CENTER, 0, 0);
popupWindow.update();
}
break;
case R.id.pop_no_mubut1:
Toast.makeText(this, "删除", Toast.LENGTH_LONG).show();
break;
case R.id.pop_no_mubut2:
Toast.makeText(this, "网络", Toast.LENGTH_LONG).show();
break;
default:
break;
}
}
private void initPopUpWindow() {
view = this.getLayoutInflater().inflate(R.layout.pop_no_img, null);
popupWindow = new PopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
MyButton myButton = (MyButton) view.findViewById(R.id.pop_no_mubut1);
myButton.setImageSource(R.drawable.menu_delete);
myButton.setTextview("删除");
myButton.setOnClickListener(this);
MyButton myButton1 = (MyButton) view.findViewById(R.id.pop_no_mubut2);
myButton1.setImageSource(R.drawable.menu_net);
myButton1.setTextview("网络");
myButton1.setOnClickListener(this);
// 控制popupwindow点击屏幕其他地方消失
// 设置背景图片，不能在布局中设置，要通过代码来设置
popupWindow.setBackgroundDrawable(this.getResources().getDrawable(R.drawable.bg_popupwindow));
// 触摸popupwindow外部，popupwindow消失。这个要求你的popupwindow要有背景图片才可以成功，如上
popupWindow.setOutsideTouchable(true);
}
}