package com.lauren.simplenews.utils;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
/**
* Description :
* Author : lauren
* Email : lauren.liuling@gmail.com
* Blog : http://www.liuling123.com
* Date : 15/12/21
*/
public class ToolsUtil {
public static final int getHeightInPx(Context context) {
final int height = context.getResources().getDisplayMetrics().heightPixels;
return height;
}
public static final int getWidthInPx(Context context) {
final int width = context.getResources().getDisplayMetrics().widthPixels;
return width;
}
public static final int getHeightInDp(Context context) {
final float height = context.getResources().getDisplayMetrics().heightPixels;
int heightInDp = px2dip(context, height);
return heightInDp;
}
public static final int getWidthInDp(Context context) {
final float width = context.getResources().getDisplayMetrics().widthPixels;
int widthInDp = px2dip(context, width);
return widthInDp;
}
public static int dip2px(Context context, float dpValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
public static int px2dip(Context context, float pxValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
public static int px2sp(Context context, float pxValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
public static int sp2px(Context context, float spValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (spValue * scale + 0.5f);
}
/**
* 获得状态栏的高度
*
* @param context
* @return
*/
public static int getStatusHeight(Context context) {
int statusHeight = -1;
try {
Class<?> clazz = Class.forName("com.android.internal.R$dimen");
Object object = clazz.newInstance();
int height = Integer.parseInt(clazz.getField("status_bar_height")
.get(object).toString());
statusHeight = context.getResources().getDimensionPixelSize(height);
} catch (Exception e) {
e.printStackTrace();
}
return statusHeight;
}
/**
* 判断网络是否可用
* @param context
* @return
*/
public static boolean isNetworkAvailable(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (cm != null) {
//如果仅仅是用来判断网络连接
//则可以使用 cm.getActiveNetworkInfo().isAvailable();
NetworkInfo[] info = cm.getAllNetworkInfo();
if (info != null) {
for (int i = 0; i < info.length; i++) {
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
}
return false;
}
}