WMSUtils.java
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package com.huaheng.tab.util;
import android.Manifest;
import android.app.Activity;
import android.app.Instrumentation;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.PowerManager;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.Toast;
import com.huaheng.tab.WMSApplication;
import org.json.JSONObject;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.MessageDigest;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class WMSUtils {
private static boolean isShow = true;
private String regex = "^[a-zA-Z]";
/**
* 短时间显示Toast
*
* @param message
*/
public static void showShort(String message)
{
if (isShow)
Toast.makeText(WMSApplication.getContext(), message, Toast.LENGTH_SHORT).show();
}
/**
* 长时间显示Toast
*
* @param message
*/
public static void showLong(String message)
{
if (isShow)
Toast.makeText(WMSApplication.getContext(), message, Toast.LENGTH_LONG).show();
}
public static void requestFocus(final View view) {
view.postDelayed(new Runnable() {
@Override
public void run() {
view.requestFocus();
}
}, 300);
}
public static void startActivity(Context context, Class<?> cls) {
Intent intent = new Intent();
intent.setClass(context, cls);
context.startActivity(intent);
}
public static String getVersionName() {
Context context = WMSApplication.getContext();
String localVersionName = "";
try {
PackageInfo packageInfo = context.getApplicationContext()
.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
localVersionName = packageInfo.versionName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return localVersionName;
}
public static int getVersionCode() {
Context context = WMSApplication.getContext();
int localVersion = 0;
try {
PackageInfo packageInfo = context.getApplicationContext()
.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
localVersion = packageInfo.versionCode;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return localVersion;
}
public static String getPackageName() {
Context context = WMSApplication.getContext();
String pkgName = null;
try {
PackageInfo packageInfo = context.getApplicationContext()
.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
pkgName = packageInfo.packageName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return pkgName;
}
public static void saveData(String key, String data) {
Context context = WMSApplication.getContext();
SharedPreferences sp = context.getSharedPreferences("wms", Activity.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.putString(key, data);
editor.commit();
}
public static String getData(String key) {
Context context = WMSApplication.getContext();
SharedPreferences sp = context.getSharedPreferences("wms", Activity.MODE_PRIVATE);
String data = sp.getString(key, null);
return data;
}
public static String getData(String key, String value) {
Context context = WMSApplication.getContext();
SharedPreferences sp = context.getSharedPreferences("wms", Activity.MODE_PRIVATE);
String data = sp.getString(key, value);
return data;
}
public static void resetEdit(EditText editText) {
editText.setText("");
WMSUtils.requestFocus(editText);
}
public static boolean isNotEmpty(String str) {
if(str != null && str.length() > 0) {
return true;
}
return false;
}
public static boolean isNotEmptyList(List<?> list) {
if(list != null && list.size() > 0) {
return true;
}
return false;
}
public static boolean containLetter(String text) {
boolean result = false;
Pattern p = Pattern.compile("[a-zA-Z]");
Matcher m = p.matcher(text);
if(m.matches()){
result = true;
}
WMSLog.d("containLetter text:" + result);
return result;
}
// 计算文件的 MD5 值
public static String md5(File file) {
if (file == null || !file.isFile() || !file.exists()) {
return "";
}
FileInputStream in = null;
String result = "";
byte buffer[] = new byte[8192];
int len;
try {
MessageDigest md5 = MessageDigest.getInstance("MD5");
in = new FileInputStream(file);
while ((len = in.read(buffer)) != -1) {
md5.update(buffer, 0, len);
}
byte[] bytes = md5.digest();
for (byte b : bytes) {
String temp = Integer.toHexString(b & 0xff);
if (temp.length() == 1) {
temp = "0" + temp;
}
result += temp;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if(null!=in){
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
public static void requestAppPermission(Activity activity) {
requestPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE);
requestPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
}
public static void requestPermission(Activity activity, String permission) {
//判断是否已经赋予权限
if (ContextCompat.checkSelfPermission(activity, permission)
!= PackageManager.PERMISSION_GRANTED) {
//如果应用之前请求过此权限但用户拒绝了请求，此方法将返回 true。
if (ActivityCompat.shouldShowRequestPermissionRationale(activity, permission)) {//这里可以写个对话框之类的项向用户解释为什么要申请权限，并在对话框的确认键后续再次申请权限
} else {
//申请权限，字符串数组内是一个或多个要申请的权限，1是申请权限结果的返回参数，在onRequestPermissionsResult可以得知申请结果
ActivityCompat.requestPermissions(activity,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
}
}
}
/*
** 判断JsonData里是否有该key，预防没有key直接造成奔溃
*/
public static String getJsonData(JSONObject object, String key) {
String result = null;
try {
result = object.has(key) ? object.getString(key) : null;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static void onKeyEvent(final int keyCode) {
new Thread() {
public void run() {
try {
Instrumentation inst = new Instrumentation();
inst.sendKeyDownUpSync(keyCode);
} catch (Exception e) {
e.printStackTrace();
}
}
}.start();
}
public static void hideSoftInput(Context context, View view) {
InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
public static void acquireWakeLock(Context context) {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WMS");
wakeLock.acquire();
}
public static void releaseWakeLock(Context context) {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WMS");
wakeLock.release();
}
}