AppUtil.java
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package com.cnlive.strike.util;
import android.app.Activity;
import android.app.ActivityManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.v4.app.ActivityCompat;
import android.text.TextUtils;
import android.util.Log;
import java.util.List;
/**
* Created by gujun on 2017/10/9.
*/
public class AppUtil {
private static final String TAG = "vlion AppUtil";
/**
* 判断某个界面是否在前台
*
* @param activity 要判断的Activity
* @return 是否在前台显示
*/
public static boolean isForeground(Activity activity) {
return isForeground(activity, activity.getClass().getName());
}
/**
* 判断某个界面是否在前台
*
* @param context Context
* @param className 界面的类名
* @return 是否在前台显示
*/
public static boolean isForeground(Context context, String className) {
if (context == null || TextUtils.isEmpty(className))
return false;
ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningTaskInfo> list = am.getRunningTasks(1);
if (list != null && list.size() > 0) {
ComponentName cpn = list.get(0).topActivity;
if (className.equals(cpn.getClassName()))
return true;
}
return false;
}
/**
* 获取包名
*
* @param context
* @return
*/
public static String getPackageName(Context context) {
return context.getPackageName();
}
/**
* get App versionName
*
* @param context
* @return
*/
public static String getVersionName(Context context) {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo;
String versionName = "";
try {
packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
versionName = packageInfo.versionName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
if (TextUtils.isEmpty(versionName)) {
Log.e(TAG, "getVersionNameError: version name is null");
}
return versionName;
}
/**
* 判断当前应用是否是debug状态
*/
public static boolean isApkInDebug(Context context) {
try {
ApplicationInfo info = context.getApplicationInfo();
return (info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
} catch (Exception e) {
return false;
}
}
/**
* get App versionName
*
* @param context
* @return
*/
public static int getVersionCode(Context context) {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo;
int versionCode = -1;
try {
packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
versionCode = packageInfo.versionCode;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return versionCode;
}
public static boolean checkPermissions(Context context, String[] PERMISSION) {
if (Build.VERSION.SDK_INT >= 23) for (String permisson : PERMISSION) {
if (TextUtils.isEmpty(permisson)) continue;
if (ActivityCompat.checkSelfPermission(context, permisson) == 0) continue;
return false;
}
return true;
}
/**
* 判定Content是否即将被销毁销毁
*
* @param context 上下文
* @return true 将被销毁 false 正常运行
*/
public static boolean isContextDestroyed(Context context) {
if (context == null) return true;
return context instanceof Activity && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && ((Activity) context).isDestroyed();
}
}