一些常用SD卡操作的方法，APk管理之类的方法
16lz
2022-04-18
获取Android开机启动列表
/** * 获取Android开机启动列表 */private static final String RECEIVE_BOOT_COMPLETED = "android.permission.RECEIVE_BOOT_COMPLETED";private static final String ACTION_BOOT_COMPLETED = "android.permission.ACTION_BOOT_COMPLETED";public static List fetchInstalledApps(Context mContext) { PackageManager pm = mContext.getPackageManager(); List appInfo = pm.getInstalledApplications(0); Iterator appInfoIterator = appInfo.iterator(); List appList = new ArrayList( appInfo.size()); while (appInfoIterator.hasNext()) { ApplicationInfo app = appInfoIterator.next(); int flag = pm.checkPermission(RECEIVE_BOOT_COMPLETED, app.packageName); if (flag == PackageManager.PERMISSION_GRANTED) { AutoStartInfo appMap = new AutoStartInfo(); String label = pm.getApplicationLabel(app).toString(); Drawable icon = pm.getApplicationIcon(app); String packageName = app.packageName; if ((app.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { appMap.setSystem(true); // abAppProcessInfo.isSystem = true; } else { appMap.setSystem(false); // abAppProcessInfo.isSystem = false; } // appMap.setDesc(desc); appMap.setIcon(icon); appMap.setPackageName(packageName); appMap.setLabel(label); appList.add(appMap); } } return appList;}获取自启应用
/** * 获取自启应用 * * @param mContext * @return */public static List fetchAutoApps(Context mContext) { PackageManager pm = mContext.getPackageManager(); Intent intent = new Intent(Intent.ACTION_BOOT_COMPLETED); List resolveInfoList = pm.queryBroadcastReceivers(intent, PackageManager.GET_DISABLED_COMPONENTS); List appList = new ArrayList(); // 得到的参数 String appName = null; String packageReceiver = null; Drawable icon = null; boolean isSystem = false; boolean isenable = true; String packageName = null; boolean isAutoStart = false; boolean isBackStart = false; /** * 通过 PackageInfo 获取具体信息方法： * * 包名获取方法：packageInfo.packageName * icon获取获取方法：packageManager.getApplicationIcon(applicationInfo) * 应用名称获取方法：packageManager.getApplicationLabel(applicationInfo) * 使用权限获取方法：packageManager.getPackageInfo(packageName,PackageManager. * GET_PERMISSIONS) .requestedPermissions * * 通过 ResolveInfo 获取具体信息方法： * * 包名获取方法：resolve.activityInfo.packageName * icon获取获取方法：resolve.loadIcon(packageManager) * 应用名称获取方法：resolve.loadLabel(packageManager).toString() * */ if (resolveInfoList.size() > 0) { for (int i = 0; resolveInfoList.size() > i; i++) { isAutoStart = false; isBackStart = false; /** * // 查找安装的package是否有开机启动权限 if(PackageManager.PERMISSION_GRANTED * == context * .getPackageManager().checkPermission(BOOT_START_PERMISSION, * app.packageName)) * * BOOT_COMPLETED BOOT_START_PERMISSION RECEIVE_BOOT_COMPLETED * ACTION_BOOT_COMPLETED */ if (mContext.getPackageManager().checkPermission( RECEIVE_BOOT_COMPLETED, resolveInfoList.get(i).activityInfo.packageName) == PackageManager.PERMISSION_GRANTED) { isAutoStart = true; } if (mContext.getPackageManager().checkPermission( ACTION_BOOT_COMPLETED, resolveInfoList.get(i).activityInfo.packageName) == PackageManager.PERMISSION_GRANTED) { isBackStart = true; } appName = resolveInfoList.get(i).loadLabel(pm).toString(); packageName = resolveInfoList.get(i).activityInfo.packageName; packageReceiver = resolveInfoList.get(i).activityInfo.packageName + "/" + resolveInfoList.get(i).activityInfo.name; icon = resolveInfoList.get(i).loadIcon(pm); ComponentName mComponentName2 = new ComponentName( resolveInfoList.get(i).activityInfo.packageName, resolveInfoList.get(i).activityInfo.name); if (pm.getComponentEnabledSetting(mComponentName2) == 2) { isenable = false; } else { isenable = true; } if ((resolveInfoList.get(i).activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { isSystem = true; } else { isSystem = false; } // AutoStartInfo mAutoStartInfo = new AutoStartInfo(); mAutoStartInfo.setLabel(appName); mAutoStartInfo.setSystem(isSystem); mAutoStartInfo.setEnable(isenable); mAutoStartInfo.setIcon(icon); mAutoStartInfo.setPackageName(packageName); mAutoStartInfo.setPackageReceiver(packageReceiver); mAutoStartInfo.setAutoStart(isAutoStart); mAutoStartInfo.setBackStart(isBackStart); boolean isAdd = true; if (appList != null) { for (int j = 0; appList.size() > j; j++) { if (appList.get(j).getPackageName().equals(packageName)) { isAdd = false; } } } if (isAdd) { appList.add(mAutoStartInfo); } } } return appList;} 单位转换
/** * 单位转换 * * @param length * @return */public static String toSize(double length) { long kb = 1024; long mb = 1024 * kb; long gb = 1024 * mb; if (length < kb) { return String.format("%d B", (int) length); } else if (length < mb) { return String.format("%.2f KB", length / kb); } else if (length < gb) { return String.format("%.2f MB", length / mb); } else { return String.format("%.2f GB", length / gb); }}// storage, G M K Bpublic static String convertStorage(long size) { long kb = 1024; long mb = kb * 1024; long gb = mb * 1024; if (size >= gb) { return String.format("%.1f GB", (float) size / gb); } else if (size >= mb) { float f = (float) size / mb; return String.format(f > 100 ? "%.0f MB" : "%.1f MB", f); } else if (size >= kb) { float f = (float) size / kb; return String.format(f > 100 ? "%.0f KB" : "%.1f KB", f); } else return String.format("%d B", size);}public static StorageSize convertStorageSize(long size) { long kb = 1024; long mb = kb * 1024; long gb = mb * 1024; StorageSize sto = new StorageSize(); if (size >= gb) { sto.suffix = "GB"; sto.value = (float) size / gb; return sto; } else if (size >= mb) { sto.suffix = "MB"; sto.value = (float) size / mb; return sto; } else if (size >= kb) { sto.suffix = "KB"; sto.value = (float) size / kb; return sto; } else { sto.suffix = "B"; sto.value = (float) size; return sto; }}获取SD卡信息
public static SDCardInfo getSDCardInfo() { // String sDcString = Environment.getExternalStorageState(); if (Environment.isExternalStorageRemovable()) { String sDcString = Environment.getExternalStorageState(); if (sDcString.equals(Environment.MEDIA_MOUNTED)) { File pathFile = Environment.getExternalStorageDirectory(); try { StatFs statfs = new StatFs(pathFile.getPath()); // 获取SDCard上BLOCK总数 long nTotalBlocks = statfs.getBlockCount(); // 获取SDCard上每个block的SIZE long nBlocSize = statfs.getBlockSize(); // 获取可供程序使用的Block的数量 long nAvailaBlock = statfs.getAvailableBlocks(); // 获取剩下的所有Block的数量(包括预留的一般程序无法使用的块) long nFreeBlock = statfs.getFreeBlocks(); SDCardInfo info = new SDCardInfo(); // 计算SDCard 总容量大小MB info.total = nTotalBlocks * nBlocSize; // 计算 SDCard 剩余大小MB info.free = nAvailaBlock * nBlocSize; return info; } catch (IllegalArgumentException e) { } } } return null;}/** * data 目录 getDataDirectory（） * * @param context * @return */public static SDCardInfo getSystemSpaceInfo(Context context) { File path = Environment.getDataDirectory(); // File path = context.getCacheDir().getAbsoluteFile(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long totalBlocks = stat.getBlockCount(); long availableBlocks = stat.getAvailableBlocks(); long totalSize = blockSize * totalBlocks; long availSize = availableBlocks * blockSize; SDCardInfo info = new SDCardInfo(); info.total = totalSize; info.free = availSize; return info;}public static SDCardInfo getRootSpaceInfo() { File path = Environment.getRootDirectory(); StatFs stat = new StatFs(path.getPath()); long blockSize = stat.getBlockSize(); long totalBlocks = stat.getBlockCount(); long availableBlocks = stat.getAvailableBlocks(); long totalSize = blockSize * totalBlocks; long availSize = availableBlocks * blockSize; // 获取SDCard上每个block的SIZE long nBlocSize = stat.getBlockSize(); SDCardInfo info = new SDCardInfo(); // 计算SDCard 总容量大小MB info.total = totalSize; // 计算 SDCard 剩余大小MB info.free = availSize; return info;}沉浸状态栏
public void sethah(Window window) { if (VERSION.SDK_INT >= VERSION_CODES.KITKAT) { // 透明状态栏 // getWindow.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); // 透明导航栏 window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION); }}检查当前网络是否可用
/** * 检查当前网络是否可用 * * @param activity * @return */public boolean isNetworkAvailable(Activity activity) { Context context = activity.getApplicationContext(); // 获取手机所有连接管理对象（包括对Wifi,net等连接的管理） ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivityManager == null) { return false; } else { // 获取NetworkInfo对象 NetworkInfo[] networkInfo = connectivityManager.getAllNetworkInfo(); if (networkInfo != null && networkInfo.length > 0) { for (int i = 0; i < networkInfo.length; i++) { System.out.println(i + "===state===" + networkInfo[i].getState()); System.out.println(i + "===style===" + networkInfo[i].getTypeName()); // 判断当前网络状态是否为连接状态 if (networkInfo[i].getState() == NetworkInfo.State.CONNECTED) { return true; } } } } return false;}安装APK
/** * 安装APK * * @param context * @param packageName */public void update(Context context, String packageName) { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(Environment .getExternalStorageDirectory(), packageName)), "application/vnd.android.package-archive"); context.startActivity(intent);}判断某个程序是否安装在手机中
/** * 判断某个程序是否安装在手机中 * * @param context * 上下文 * @param packageName * 需要验证的包名 * @return 是否安装 */public static boolean isPackageExist(Context context, String packageName) { if (packageName == null) return false; boolean packageExist = false; PackageManager packageManager = context.getPackageManager(); try { packageManager.getPackageInfo(packageName, 0); packageExist = true; } catch (PackageManager.NameNotFoundException ignored) { // L.d("isPackageExist:" + ignored); } return packageExist;}判断APK是否已安装
/** * 判断APK是否已安装 * * @param pm * @param packageName * @param versionCode * @return */public int doType(PackageManager pm, String packageName, int versionCode) { List pakageinfos = pm .getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES); for (PackageInfo pi : pakageinfos) { String pi_packageName = pi.packageName; int pi_versionCode = pi.versionCode; // 如果这个包名在系统已经安装过的应用中存在 if (packageName.endsWith(pi_packageName)) { // Log.i("test","此应用安装过了"); if (versionCode == pi_versionCode) { Log.i("test", "已经安装，不用更新，可以卸载该应用"); return 1000; } else if (versionCode > pi_versionCode) { Log.i("test", "已经安装，有更新"); return 2000; } } } Log.i("test", "未安装该应用，可以安装"); return 3000;} 获取当前版本的版本名字
/** * 获取当前版本的版本名字 * * @param context * @return */public String getVersion(Context context) { try { PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = packageManager.getPackageInfo( context.getPackageName(), 0); return packageInfo.versionName; } catch (Exception e) { e.printStackTrace(); return context.getResources() .getString(R.string.unknown_versionnum); }}获取当前版本的版本号
/** * 获取当前版本的版本号 * * @return */public int getVersiontheCode(Context context) { try { PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = packageManager.getPackageInfo( context.getPackageName(), 0); return packageInfo.versionCode; } catch (Exception e) { e.printStackTrace(); return R.string.unknown_versionnum; }}判断WIFI是否连接
/ ** * 判断WIFI是否连接 * * @param context * @return true为已连接 */boolean isWifi = false;public static boolean isWifiConnected(Context context) { ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo wifiNetworkInfo = connectivityManager .getNetworkInfo(ConnectivityManager.TYPE_WIFI); if (wifiNetworkInfo.isConnected()) { return true; } return false;}删除单个文件
` /** * 删除单个文件 * * @param filePath * 被删除文件的文件名 * @return 文件删除成功返回true，否则返回false */public boolean deleteFile(String filePath, Context context) { File file = new File(filePath); if (file.isFile() && file.exists()) { boolean isOK = file.delete(); scanFile(file, context); return isOK; } else { Toast.makeText(context, "null", 0).show(); } return false;}` 扫描文件
/** * 扫描文件 * * @param file * @param context */public void scanFile(File file, Context context) { Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); Uri uri = Uri.fromFile(file); intent.setData(uri); context.sendBroadcast(intent);} /** * get,set */private List myFiles = new ArrayList();public List getMyFiles() { return myFiles;}public void setMyFiles(List myFiles) { this.myFiles = myFiles;}运用递归的思想，递归去找每个目录下面的apk文件
/** * 运用递归的思想，递归去找每个目录下面的apk文件 * * @param file */public void FindAllAPKFile(File file, Context context) { // 手机上的文件,目前只判断SD卡上的APK文件 // file = Environment.getDataDirectory(); // SD卡上的文件目录 if (file.isFile()) { String name_s = file.getName(); APKInfo myFile = new APKInfo(); String apk_path = null; // MimeTypeMap.getSingleton() if (name_s.toLowerCase().endsWith(".apk")) { apk_path = file.getAbsolutePath();// apk文件的绝对路劲 // System.out.println("----" + file.getAbsolutePath() + "" + // name_s); PackageManager pm = context.getPackageManager(); PackageInfo packageInfo = pm.getPackageArchiveInfo(apk_path, PackageManager.GET_ACTIVITIES); ApplicationInfo appInfo = packageInfo.applicationInfo; /** 获取apk的图标 */ appInfo.sourceDir = apk_path; appInfo.publicSourceDir = apk_path; Drawable apk_icon = appInfo.loadIcon(pm); myFile.setIcon(apk_icon); /** 得到包名 */ String packageName = packageInfo.packageName; myFile.setName(packageName); /** apk的绝对路劲 */ myFile.setPath(file.getAbsolutePath()); /** apk的版本名称 String */ String versionName = packageInfo.versionName; myFile.setVersionName(versionName); /** apk的版本号码 int */ int versionCode = packageInfo.versionCode; myFile.setVersionCode(versionCode); /** 安装处理类型 */ int type = doType(pm, packageName, versionCode); myFile.setType(type); Log.i("ok", "处理类型:" + String.valueOf(type) + "\n" + "------------------我是纯洁的分割线-------------------"); myFiles.add(myFile); } // String apk_app = name_s.substring(name_s.lastIndexOf(".")); } else { File[] files = file.listFiles(); if (files != null && files.length > 0) { for (File file_str : files) { FindAllAPKFile(file_str, context); } } }}获得所有的应用程序信息
/** * 获得所有的应用程序信息 * * @return */public static List getAllApps(Context context) { PackageManager pm = context.getPackageManager(); List packages = pm.getInstalledPackages(0); List list = new ArrayList(); for (PackageInfo info : packages) { ApplicationInfo applicationInfo = info.applicationInfo; String name = applicationInfo.loadLabel(pm).toString(); Drawable icon = applicationInfo.loadIcon(pm); String sourceDir = applicationInfo.sourceDir; File file = new File(sourceDir); int flags = applicationInfo.flags; boolean isInstallSD = false; if ((flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) == ApplicationInfo.FLAG_EXTERNAL_STORAGE) { isInstallSD = true; } boolean isSystem = false; if ((flags & ApplicationInfo.FLAG_SYSTEM) == ApplicationInfo.FLAG_SYSTEM) { isSystem = true; } AppBean bean = new AppBean(); bean.icon = icon; bean.name = name; bean.size = file.length(); bean.isInstallSD = isInstallSD; bean.isSystem = isSystem; bean.packageName = info.packageName; list.add(bean); } return list;}public static List getAllLaunchApps(Context context) { PackageManager pm = context.getPackageManager(); List packages = pm.getInstalledPackages(0); List list = new ArrayList(); for (PackageInfo info : packages) { Intent intent = pm.getLaunchIntentForPackage(info.packageName); if (intent == null) { continue; } ApplicationInfo applicationInfo = info.applicationInfo; String name = applicationInfo.loadLabel(pm).toString(); Drawable icon = applicationInfo.loadIcon(pm); String sourceDir = applicationInfo.sourceDir; File file = new File(sourceDir); int flags = applicationInfo.flags; boolean isInstallSD = false; if ((flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) == ApplicationInfo.FLAG_EXTERNAL_STORAGE) { isInstallSD = true; } boolean isSystem = false; if ((flags & ApplicationInfo.FLAG_SYSTEM) == ApplicationInfo.FLAG_SYSTEM) { isSystem = true; } AppBean bean = new AppBean(); bean.icon = icon; bean.name = name; bean.size = file.length(); bean.isInstallSD = isInstallSD; bean.isSystem = isSystem; bean.packageName = info.packageName; list.add(bean); } return list;} 更多相关文章
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