Android:PopupWindow工具类，调用几行代码搞定
一、前言
最近写项目，老是碰到PopupWindow,于是每次都写一大堆的代码，后来想想能不能封装一下，方便调用，然后就抽空写了一个万
能通用的工具类。废话少说，直接上代码。
二、代码部分
package com.aomei.myexample.Utils;
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.PopupWindow;
import android.widget.TextView;
/**
* 封装的PopupWidow的工具类
*
* @author hf 2016-09-09 13:31
* @version 1.0
* @des
* @版本 $Rev$
* @change $Author$ $Date$
* @des 用英文装个逼不容易啊--调用很简单，直接new完传递参数，实现方法，通过builder调用方法，可以自己扩展
*/
public abstract class PopUtils {
private Context mContext;
private int mlayoutResId;
private int mHeight;
private int mwidth;
private ClickListener mCallback;
/**
* The constructor of MyPopupWindow
*
* @param context Interface to global information about an application environment
* @param layoutResId The resource id of the layout embedded inside the PopupWindow
* @param width the width of the PopupWindow
* @param height the height of the PopupWindow
* @param view a parent view to get the android.view.View.getWindowToken() token from
* @param gravity the gravity which controls the placement of the popup window
* @param x the PopupWindow's x location offset
* @param y the PopupWindow's y location offset
*/
public PopUtils(Context context, int layoutResId, int width, int height, View view, int gravity, int x, int y, ClickListener callback) {
this.mContext = context;
this.mlayoutResId = layoutResId;
this.mwidth = width;
this.mHeight = height;
setCallBack(callback);
PopBuilder builder = PopBuilder.createPopupWindow(context, layoutResId, width, height, view, gravity, x, y, mCallback);
}
public static class PopBuilder {
private ClickListener mCallback;
private static PopupWindow window;
private SparseArray mViews;
private View mItem;
private PopBuilder(Context context, View view, ClickListener callback) {
this.mViews = new SparseArray<>();
this.mItem = view;
this.mCallback = callback;
}
public static PopBuilder createPopupWindow(final Context context, int layoutResId, int width, int height, View parent, int gravity, int x, int y, ClickListener callback) {
// 利用layoutInflater获得View
LayoutInflater inflater = (LayoutInflater) ((Activity) context)
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(layoutResId, null);
PopBuilder builder = new PopBuilder(context, view, callback);
window = new PopupWindow(view, width, height);
// 设置popWindow弹出窗体可点击，这句话必须添加，并且是true
window.setFocusable(true);
window.setTouchable(true);
// 设置触摸外面时消失
window.setOutsideTouchable(true);
window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
// 监听PopupWindow关闭，如果为关闭状态则设置为空
window.setOnDismissListener(new PopupWindow.OnDismissListener() {
@Override
public void onDismiss() {
window = null;
// 主界面完全显示
WindowManager.LayoutParams params = ((Activity) context).getWindow().getAttributes();
params.alpha = 1.0f;
((Activity) context).getWindow().setAttributes(params);
}
});
// 实例化一个ColorDrawable颜色为透明，不设置为半透明是因为带圆角
ColorDrawable dw = new ColorDrawable(context.getResources().getColor(android.R.color.transparent));
window.setBackgroundDrawable(dw);
window.showAtLocation(parent, gravity, x, y);
// 主界面变暗
WindowManager.LayoutParams params = ((Activity) context).getWindow().getAttributes();
params.alpha = 0.4f;
((Activity) context).getWindow().setAttributes(params);
//点击事件回调
if (window != null) {
callback.setUplistener(builder);
}
return builder;
}
/**
* 得到视图
*
* @param id 控件资源id
* @param 类型
*
* @return T
*/
public T getView(int id) {
T t = (T) mViews.get(id);
if (t == null) {
t = (T) mItem.findViewById(id);
mViews.put(id, t);
}
return t;
}
/**
* 使窗口消失
* @return
*/
public PopBuilder dismiss() {
if (window != null) {
window.dismiss();
}
return this;
}
/**
* 设置是否可见
*
* @param id 控件id
* @param visibility 是否可见
*
* @return PopBuilder
*/
public PopBuilder setVisibility(int id, int visibility) {
getView(id).setVisibility(visibility);
return this;
}
/**
* 设置图片资源
*
* @param id 控件id
* @param drawableRes drawable资源id
*
* @return PopBuilder
*/
public PopBuilder setImageResource(int id, int drawableRes) {
View view = getView(id);
if (view instanceof ImageView) {
((ImageView) view).setImageResource(drawableRes);
} else {
view.setBackgroundResource(drawableRes);
}
return this;
}
/**
* 设置文本
*
* @param id 控件id
* @param text 文本内容
*
* @return PopBuilder
*/
public PopBuilder setText(int id, CharSequence text) {
View view = getView(id);
if (view instanceof TextView) {
((TextView) view).setText(text);
}
return this;
}
}
/**
* 用于回调的接口
*/
public interface ClickListener {
void setUplistener(PopBuilder builder);
}
/**
* 设置回调对象
* @param callBack 回调对象
*/
private void setCallBack(ClickListener callBack) {
this.mCallback = callBack;
}
}
三、调用示例
PopUtils utils = new PopUtils(ThirdActivity.this, R.layout.activity_sqlite, 600, 400, mBtnSend, Gravity.CENTER, 0, 0, new PopUtils.ClickListener() {
@Override
public void setUplistener(final PopUtils.PopBuilder builder) {
builder.setText(R.id.btn_sqlite_find_all, "查询");
builder.getView(R.id.btn_sqlite_find_all).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder.dismiss();
}
});
}
}) {
};