Android 轻量级的MVP快速开发框架

package cn.droidlover.xdroidmvp.kit; import android.app.ActivityManager; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.Uri; import android.telephony.TelephonyManager; import android.text.TextUtils; import java.io.BufferedReader; import java.io.Closeable; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.Set; /** * Created by wanglei on 2016/11/28. */ public class Kits { public static class Package { /** * 获取版本号 * * @param context * @return */ public static int getVersionCode(Context context) { PackageManager pManager = context.getPackageManager(); PackageInfo packageInfo = null; try { packageInfo = pManager.getPackageInfo(context.getPackageName(), 0); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return packageInfo.versionCode; } /** * 获取当前版本 * * @param context * @return */ public static String getVersionName(Context context) { PackageManager pManager = context.getPackageManager(); PackageInfo packageInfo = null; try { packageInfo = pManager.getPackageInfo(context.getPackageName(), 0); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return packageInfo.versionName; } /** * 安装App * * @param context * @param filePath * @return */ public static boolean installNormal(Context context, String filePath) { Intent i = new Intent(Intent.ACTION_VIEW); java.io.File file = new java.io.File(filePath); if (file == null || !file.exists() || !file.isFile() || file.length() <= 0) { return false; } i.setDataAndType(Uri.parse("file://" + filePath), "application/vnd.android.package-archive"); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(i); return true; } /** * 卸载App * * @param context * @param packageName * @return */ public static boolean uninstallNormal(Context context, String packageName) { if (packageName == null || packageName.length() == 0) { return false; } Intent i = new Intent(Intent.ACTION_DELETE, Uri.parse(new StringBuilder().append("package:") .append(packageName).toString())); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(i); return true; } /** * 判断是否是系统App * * @param context * @param packageName 包名 * @return */ public static boolean isSystemApplication(Context context, String packageName) { if (context == null) { return false; } PackageManager packageManager = context.getPackageManager(); if (packageManager == null || packageName == null || packageName.length() == 0) { return false; } try { ApplicationInfo app = packageManager.getApplicationInfo(packageName, 0); return (app != null && (app.flags & ApplicationInfo.FLAG_SYSTEM) > 0); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return false; } /** * 判断某个包名是否运行在顶层 * * @param context * @param packageName * @return */ public static Boolean isTopActivity(Context context, String packageName) { if (context == null || TextUtils.isEmpty(packageName)) { return null; } ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.RunningTaskInfo> tasksInfo = activityManager.getRunningTasks(1); if (tasksInfo == null || tasksInfo.isEmpty()) { return null; } try { return packageName.equals(tasksInfo.get(0).topActivity.getPackageName()); } catch (Exception e) { e.printStackTrace(); return false; } } /** * 获取Meta-Data * * @param context * @param key * @return */ public static String getAppMetaData(Context context, String key) { if (context == null || TextUtils.isEmpty(key)) { return null; } String resultData = null; try { PackageManager packageManager = context.getPackageManager(); if (packageManager != null) { ApplicationInfo applicationInfo = packageManager.getApplicationInfo(context.getPackageName(), PackageManager.GET_META_DATA); if (applicationInfo != null) { if (applicationInfo.metaData != null) { resultData = applicationInfo.metaData.getString(key); } } } } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return resultData; } /** * 判断当前应用是否运行在后台 * * @param context * @return */ public static boolean isApplicationInBackground(Context context) { ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.RunningTaskInfo> taskList = am.getRunningTasks(1); if (taskList != null && !taskList.isEmpty()) { ComponentName topActivity = taskList.get(0).topActivity; if (topActivity != null && !topActivity.getPackageName().equals(context.getPackageName())) { return true; } } return false; } } public static class Dimens { public static float dpToPx(Context context, float dp) { return dp * context.getResources().getDisplayMetrics().density; } public static float pxToDp(Context context, float px) { return px / context.getResources().getDisplayMetrics().density; } public static int dpToPxInt(Context context, float dp) { return (int) (dpToPx(context, dp) + 0.5f); } public static int pxToDpCeilInt(Context context, float px) { return (int) (pxToDp(context, px) + 0.5f); } } public static class Random { public static final String NUMBERS_AND_LETTERS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; public static final String NUMBERS = "0123456789"; public static final String LETTERS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; public st