打印和弹窗的工具封装

package com.sanhuan.demo.util;

import android.app.ProgressDialog;
import android.content.Context;
import android.util.Log;
import android.view.Gravity;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;

/**
* Created by Administrator on 2017/7/31.
*/

public class L {
public static void c(String str) {
Log.e("Chen", str);
}

/**
* 消息框：short弹出
*
* @param context
* @param str
*/
public static void t(Context context, String str) {
Toast.makeText(context, "click " + str, Toast.LENGTH_SHORT).show();
}

/**
* 消息框：long弹出
*
* @param context
* @param str
*/
public static void tl(Context context, String str) {
Toast.makeText(context, "long click " + str, Toast.LENGTH_LONG).show();
}

/**
* 进度框弹出
*
* @param context
* @param title
* @param content
* @return
*/
public static ProgressDialog showDialog(Context context, String title, String content) {
//创建ProgressDialog实例
ProgressDialog dialog = new ProgressDialog(context);

//给dialog设置常用属性
dialog.setTitle(title); //设置标题
dialog.setMessage(content); //设置说明文字
dialog.setIndeterminate(false); //设置进度条是否为不明确(来回旋转)
dialog.setCanceledOnTouchOutside(true);//设置点击屏幕不消失
dialog.setCancelable(true); //设置进度条是否可以按退回键取消

//设置dialog的显示透明度等
Window wd = dialog.getWindow(); //获取屏幕管理器
WindowManager.LayoutParams lp = wd.getAttributes();
lp.alpha = 0.8f; //设置循环框的透明度
wd.setAttributes(lp); //设置弹出框的透明度
wd.setGravity(Gravity.CENTER); //设置水平居中

//显示弹出dialog
dialog.show();

return dialog;

}

/**
* 进度框消失
*
* @param dialog
*/
public static void dismissDialog(ProgressDialog dialog) {
dialog.dismiss();
}
}