/*
* Copyright 2016. SHENQINCI(沈钦赐)<946736079@qq.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ren.qinc.markdowneditors.utils;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningTaskInfo;
import android.app.Dialog;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.AssetManager;
import android.os.Build;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.util.List;
import ren.qinc.markdowneditors.base.BaseApplication;
/**
* 系统相关工具集合
* 来至网上，作者未知（表示感谢）
*/
public class SystemUtils {
/**
* 显示键盘
*
* @param dialog
*/
public static void showSoftKeyboard(Dialog dialog) {
dialog.getWindow().setSoftInputMode(4);
}
/**
* 显示键盘
*
* @param view
*/
public static void showSoftKeyboard(View view) {
((InputMethodManager) BaseApplication.context().getSystemService(Context.INPUT_METHOD_SERVICE))
.showSoftInput(view, InputMethodManager.SHOW_FORCED);
}
/**
* 隐藏键盘
*
* @param view
*/
public static void hideSoftKeyboard(View view) {
if (view == null)
return;
((InputMethodManager) BaseApplication.context().getSystemService(Context.INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
/***
* 获取activity的宽度
*
* @param activity the activity
* @return width pixels
*/
public static int getWidthPixels(Activity activity) {
DisplayMetrics dm = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
return dm.widthPixels;
}
/***
* 获取activity的高度
*
* @param activity the activity
* @return height pixels
*/
public static int getHeightPixels(Activity activity) {
DisplayMetrics dm = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
return dm.heightPixels;
}
/**
* 根据手机的分辨率从 dip 的单位 转成为 px(像素)
*/
public static int dip2px(Context context, float dpValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
/**
* 根据手机的分辨率从 px(像素) 的单位 转成为 dp
*/
public static int px2dip(Context context, float pxValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
/**
* 获取当前应用版本号
*
* @param context
* @return version
* @throws Exception
*/
public static String getAppVersion(Context context) {
// 获取packagemanager的实例
PackageManager packageManager = context.getPackageManager();
// getPackageName()是你当前类的包名，0代表是获取版本信息
PackageInfo packInfo = null;
try {
packInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
} catch (NameNotFoundException e) {
return "未知";
}
return packInfo.versionName;
}
public static int getAppVersionCode(Context context) {
int versionCode;
try {
// 获取packagemanager的实例
PackageManager packageManager = context.getPackageManager();
// getPackageName()是你当前类的包名，0代表是获取版本信息
PackageInfo packInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
versionCode = packInfo.versionCode;
} catch (NameNotFoundException e) {
versionCode = 1;
e.printStackTrace();
}
return versionCode;
}
/**
* 获取当前系统SDK版本号
*/
public static int getSystemVersion() {
/* 获取当前系统的android版本号 */
return Build.VERSION.SDK_INT;
}
/**
* @description 2.2
*/
public static boolean hasFroyo() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO;
}
/**
* @description 2.3
*/
public static boolean hasGingerbread() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD;
}
/**
* @description 3.x
*/
public static boolean hasHoneycomb() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;
}
/**
* @description 4.0
*/
public static boolean hasIcecreamSandwich() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH;
}
/**
* @description 4.1
*/
public static boolean hasJellyBean() {
return Build.VERSION.SDK_INT >= 17;
}
/**
* Has kit kat boolean.
*
* @return the boolean
* @description 4.4
*/
public static boolean hasKitKat() {
return Build.VERSION.SDK_INT >= 19;
}
/**
* @description 5.0
*/
public static boolean hasLollipop() {
return Build.VERSION.SDK_INT >= 21;
}
/**
* 判断软件是前台还是后台
*
* @param context the mContext
* @return boolean
*/
public static boolean isBackground(Context context) {
ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> tasks = am.getRunningTasks(1);
if (!tasks.isEmpty()) {
ComponentName topActivity = tasks.get(0).topActivity;
if (!topActivity.getPackageName().equals(context.getPackageName())) {
return true;
}
}
return false;
}
/**
* Gets phone msg.
*
* @param context the mContext
* @return the phone msg
* @throws Exception the exception
*/
public static String getPhoneMsg(Context context) throws Exception {
return "手机型号: " + Build.MODEL + ",\nSDK版本:"
+ Build.VERSION.SDK + ",\n系统版本:"
+ Build.VERSION.RELEASE +
",软件版本:" + getAppVersion(context) +
",软件版本号:" + getAppVersionCode(context);
}
/**
* 复制到剪切板
*
* @param context the mContext
* @param text the text
*/
public static void copyToClipBoard(Context context, String text) {
ClipData clipData = ClipData.newPlainText("text_copy", text);
ClipboardManager manager = (ClipboardManager) context.getSystemService(
Context.CLIPBOARD_SERVICE);
manager.setPrimaryClip(clipData);
}
/**
* 获取状态栏高度
*
* @return
*/
public static int barHeight = 0;
public static int getStatusBarHeight() {
if (barHeight > 0) {
return barHeight;
}
if (BaseApplication.context() == null) {
return 0;
}
Class<?> c;
Object obj;
Field field;
int x;
try {
c = Class.forName("com.android.internal.R$dimen");
obj = c.newInstance();
field = c.getField("status_bar_height");
x = Integer.parseInt(field.get(obj).toString());
barHeight = BaseApplication.context().getResources().getDimensionPixelSize(x);
} catch (Exception e1) {
Log.i("test", "状态栏高度获取失败了");
}
return barHeight;
}
//从assets 文件夹中获取文件并读取数据
public static String getAssertString(Context context, String filename) {
AssetManager am = context.getAssets();
InputStream is = null;
try {
is = am.open(filename);
return new String(readInputStream(is)).trim();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
public static byte[] readInputStream(InputStream in) {
byte[] buffer = null;
try {
int length = in.available();
buffer = new byte[length];
in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
return buffer;
}
}