自定义dialog

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package com.joey.test;import android.app.Dialog;import android.content.Context;import android.content.DialogInterface;import android.os.Bundle;import android.support.annotation.IdRes;import android.view.Display;import android.view.Gravity;import android.view.KeyEvent;import android.view.LayoutInflater;import android.view.View;import android.view.Window;import android.view.WindowManager;/** * 封装可以展示任意布局的自定义dialog */public class CustomDialog extends Dialog {    private Context context;    private double height, width;    private boolean cancelTouchout;//触摸空白是否可以消失 默认不消失    private View view;    private boolean cancelBack = false;//点击返回键是否可以消失 默认消失    private int location = Gravity.CENTER;    private CustomDialog(Builder builder) {        super(builder.context);        context = builder.context;        height = builder.height;        width = builder.width;        location = builder.location;        view = builder.view;        cancelBack = builder.cancelBack;        cancelTouchout = builder.canTouchout;    }    private CustomDialog(Builder builder, int resStyle) {        super(builder.context, resStyle);        context = builder.context;        height = builder.height;        width = builder.width;        location = builder.location;        view = builder.view;        cancelBack = builder.cancelBack;        cancelTouchout = builder.canTouchout;    }    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(view);        setCanceledOnTouchOutside(cancelTouchout);        setOnKeyListener(mListener);        Window win = getWindow();        WindowManager.LayoutParams lp = win.getAttributes();        // 最好放在外面控制显示位置,放在里面高度控制会变成偏移量---设 置大小及显示位置        // 设置dialog 的窗口大小        WindowManager m = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);        Display d = m.getDefaultDisplay(); // 为获取屏幕宽、高        lp.gravity = location;        if (height == 0.0) {            lp.height = (int) (d.getHeight() * 0.5); //            lp.width = (int) (d.getWidth() * 0.65);        } else {            lp.height = (int) (d.getHeight() * height); //            lp.width = (int) (d.getWidth() * width); // 宽度设置为屏幕的        }        win.setAttributes(lp);    }    /**     * 返回键是否可以消失     */    OnKeyListener mListener = new OnKeyListener() {        @Override        public boolean onKey(DialogInterface dialogInterface, int i, KeyEvent keyEvent) {            return cancelBack;        }    };    //    public <T extends View> T getView(@IdRes int resId) {        return (T) view.findViewById(resId);    }    public static class Builder {        private Context context;        private double height, width;        private int location;        private boolean canTouchout;        private View view;        private int resStyle = -1;        public boolean cancelBack;        public Builder(Context context) {            this.context = context;        }        public Builder view(int resView) {            view = LayoutInflater.from(context).inflate(resView, null);            return this;        }        /**         * 设置dialog弹出的位置 BOOTOM(下) CENTER(中) TOP(上) LEFT(左) RIGHT(右)         *         * @return         */        public Builder location(int location) {            this.location = location;            return this;        }        /**         * 设置dialog的位置大小1.设置dialog高度的屏占比2.设置dialog宽度的屏占比         *         * @param heightScale         * @param widthScale         * @return         */        public Builder size(double heightScale, double widthScale) {            this.height = heightScale;            this.width = widthScale;            return this;        }        public Builder style(int resStyle) {            this.resStyle = resStyle;            return this;        }        /**         * 触摸空白是否可以消失1.true 消失 2.false 不消失3.不传默认为false         *         * @param val         * @return         */        public Builder canTouchout(boolean val) {            canTouchout = val;            return this;        }        /**         * 点击返回键dialog是否消失1.false 消失 2.true 不消失3.不传默认为false         *         * @param val         * @return         */        public Builder cancelBackPress(boolean val) {            cancelBack = val;            return this;        }        public CustomDialog build( ) {            if (resStyle != -1) {                return new CustomDialog(this, resStyle);            } else {                return new CustomDialog(this);            }        }    }}

    CustomDialog customDialog;    private void initdialog(){        CustomDialog.Builder builder = new CustomDialog.Builder(MainActivity.this);        customDialog = builder.view(R.layout.dialog)                .size(0.6,1)                .location(Gravity.BOTTOM)                .canTouchout(true)                .cancelBackPress(false)                .build();    }

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