package com.example.administrator.ximengjianyu.utils;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.WindowManager;

import java.util.ArrayList;
import java.util.List;

public class CoreUtil {
	//加载对话框
	private static ProgressDialog pd;
	private static float sDensity = 0;
	static List<FragmentActivity> list = new ArrayList<FragmentActivity>();
	
	/**
	 * 把所有打开的activity加进集合
	 * @param fActivity
	 */
	public void addToActivityList(FragmentActivity fActivity){
		if(!list.contains(fActivity)){
			list.add(fActivity);
		}
	}
	
	/**
	 * 关闭activity集合
	 */
	public void finishActivityList(){
		Log.e("CoreUtl","activity集合大小-----》》"+list.size());
		for (int i = 0; i < list.size(); i++) {
			Log.e("CoreUtl","被关闭fragmentActivity-----》》"+list.get(i));
			list.get(i).finish();
		}
		list.clear();
	}
	
	/**
	 * 关闭activity 并杀死进程。
	 */
	public void exitApp(){
		for (FragmentActivity activity : list) {
			activity.finish();
			Log.e("CoreUtl","exitApp:-----》》"+activity);
		}
		list.clear();
		Log.e("CoreUtl","android.os.Process.killProcess(android.os.Process.myPid());");
		//杀死进程
		android.os.Process.killProcess(android.os.Process.myPid());
	}
	
	
	/**
	 * 开启加载提示对话款
	 */
	public void showProDialog(Context context) {
		if(pd == null ){
			pd = new ProgressDialog(context);
			pd.setMessage("加载中，请稍后...");
			pd.setCancelable(false);
		}
		if(pd.isShowing()){
//			pd.dismiss();	
			return;
		}
		pd.show();
	}
	/**
	 * 关闭加载提示对话款
	 */
	public void dismissProDialog() {
		if(pd != null ){
			pd.dismiss();	
		}
	}
	
	/**
	 * 将sp值转换为px值，保证文字大小不变
	 * @param context
	 * @param spValue
	 * @return
	 */
	public int spToPixel(Context context, float spValue) {
		final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
		return (int) (spValue * fontScale + 0.5f);
	}
	
	/**
	 * dp转换为像素
	 * @param context
	 * @param nDip
	 * @return
	 */
	public static int dipToPixel(Context context, int nDip) {
		if (sDensity == 0) {
			final WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
			DisplayMetrics dm = new DisplayMetrics();
			wm.getDefaultDisplay().getMetrics(dm);
			sDensity = dm.density;
		}
		return (int) (sDensity * nDip);
	}
	
	/**
	 * 获取屏幕 宽 高
	 * @param activity
	 * @return 数组  0 为宽度 1 为高度
	 */
	public int[] getDisplay(Activity activity){
		int[] display = new int[2];
		DisplayMetrics dm = new DisplayMetrics();
		activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
		display[0] = dm.widthPixels;
		display[1] = dm.heightPixels;
		return display;
	}
}