Android中访问应用程序的一些方法
来源：互联网 发布：江苏普通发票软件 编辑：程序博客网 时间：2024/05/21 17:11
代码：
ProcessInfo（设备的进程信息）类：
public class ProcessInfo{ /** * The user id of this process. */ public String uid; /** The name of the process that this object is associated with. */ public String processName; /** The pid of this process; 0 if none. */ public int pid; /** 占用的内存 B. */ public long memory; /** 占用的CPU. */ public String cpu; /** 进程的状态，其中S表示休眠，R表示正在运行，Z表示僵死状态，N表示该进程优先值是负数. */ public String status; /** 当前使用的线程数. */ public String threadsCount; /** * Instantiates a new ab process info. */ public ProcessInfo() { super(); } /** * Instantiates a new ab process info. * * @param processName the process name * @param pid the pid */ public ProcessInfo(String processName, int pid) { super(); this.processName = processName; this.pid = pid; }AppProcessInfo（应用程序的进程信息）类：
public class AppProcessInfo implements Comparable<AppProcessInfo> { /** * The app name. */ public String appName; /** * The name of the process that this object is associated with. */ public String processName; /** * The pid of this process; 0 if none. */ public int pid; /** * The user id of this process. */ public int uid; /** * The icon. */ public Drawable icon; /** * 占用的内存. */ public long memory; /** * 占用的内存. */ public String cpu; /** * 进程的状态，其中S表示休眠，R表示正在运行，Z表示僵死状态，N表示该进程优先值是负数. */ public String status; /** * 当前使用的线程数. */ public String threadsCount; public boolean checked=true; /** * 是否是系统进程. */ public boolean isSystem; /** * Instantiates a new ab process info. */ public AppProcessInfo() { super(); } /** * Instantiates a new ab process info. * * @param processName the process name * @param pid the pid * @param uid the uid */ public AppProcessInfo(String processName, int pid, int uid) { super(); this.processName = processName; this.pid = pid; this.uid = uid; } /* (non-Javadoc) * @see java.lang.Comparable#compareTo(java.lang.Object) */ @Override public int compareTo(AppProcessInfo another) { if (this.processName.compareTo(another.processName) == 0) { if (this.memory < another.memory) { return 1; } else if (this.memory == another.memory) { return 0; } else { return -1; } } else { return this.processName.compareTo(another.processName); } }}AppUtils（APP管理工具）类：
public class AppUtil { public static List<String[]> mProcessList = null;//数组列表 /** * 得到版本信息 * * @param context * @return */ public static String getVersion(Context context) { try { PackageManager manager = context.getPackageManager();//应用包的管理信息 PackageInfo info = manager.getPackageInfo(context.getPackageName(), 0);//得到包名 String version = info.versionName;//版本名 return version; } catch (Exception e) { e.printStackTrace(); return "1.0"; } } public static int getVersionCode(Context context) { try { PackageManager manager = context.getPackageManager(); PackageInfo info = manager.getPackageInfo(context.getPackageName(), 0); int versionCode = info.versionCode; return versionCode; } catch (Exception e) { e.printStackTrace(); return 0; } } /** * 描述，打开并安装文件 * * @param context * @param file apk文件路径 */ public static void installApk(Context context, File file) { Intent intent = new Intent(); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); context.startActivity(intent); } /** * 描述：卸载程序 * * @param context the context * @param packageName 包名 */ public static void uninstallApk(Context context, String packageName) { Intent intent = new Intent(Intent.ACTION_DELETE); Uri packageURI = Uri.parse("package:" + packageName); intent.setData(packageURI); context.startActivity(intent); } /** * 描述：用来判断服务是否运行 * * @param context the context * @param className 判断的服务名字 "com.xxx.xx..XXXService" * @return true 在运行 false 不在运行 */ public static boolean isServiceRunning(Context context, String className) { boolean isRunning = false;//用来判断是否运行 ActivityManager activityManager = (ActivityManager) context .getSystemService(Context.ACTIVITY_SERVICE);//Activity管理 List<ActivityManager.RunningServiceInfo> servicesList = activityManager .getRunningServices(Integer.MAX_VALUE);//运行状态的服务 Iterator<ActivityManager.RunningServiceInfo> l = servicesList.iterator(); while (l.hasNext()) { ActivityManager.RunningServiceInfo si = l.next(); if (className.equals(si.service.getClassName())) {//比较，判断 isRunning = true; } } return isRunning; } /** * 停止服务. * * @param context the context * @param className the class name * @return true, if successful */ public static boolean stopRunningService(Context context, String className) { Intent intent_service = null; boolean ret = false; try { intent_service = new Intent(context, Class.forName(className)); } catch (Exception e) { e.printStackTrace(); } if (intent_service != null) { ret = context.stopService(intent_service); } return ret; } /** * Gets the number of cores available in this device, across all processors. * Requires: Ability to peruse the filesystem at "/sys/devices/system/cpu" * * @return The number of cores, or 1 if failed to get result */ public static int getNumCores() { try { // Get directory containing CPU info File dir = new File("/sys/devices/system/cpu/"); // Filter to only list the devices we care about File[] files = dir.listFiles(new FileFilter() { @Override public boolean accept(File pathname) { // Check if filename is "cpu", followed by a single digit // number if (Pattern.matches("cpu[0-9]", pathname.getName())) { return true; } return false; } }); // Return the number of cores (virtual CPU devices) return files.length; } catch (Exception e) { e.printStackTrace(); return 1; } } /** * 描述：判断网络是否有效 * * @param context the context * @return true, if is network available */ public static boolean isNetworkAvailable(Context context) { try { ConnectivityManager connectivity = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivity != null) { NetworkInfo info = connectivity.getActiveNetworkInfo(); if (info != null && info.isConnected()) { if (info.getState() == NetworkInfo.State.CONNECTED) { return true; } } } } catch (Exception e) { e.printStackTrace(); return false; } return false; } /** * Gps是否打开 需要<uses-permission * android:name="android.permission.ACCESS_FINE_LOCATION" />权限 * * @param context the context * @return true, if is gps enabled */ public static boolean isGpsEnabled(Context context) { LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);//位置管理 return lm.isProviderEnabled(LocationManager.GPS_PROVIDER); } /** * 判断当前网络是否为移动网络 * * @param context the context * @return boolean */ public static boolean isMobile(Context context) { ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo(); if (networkInfo != null && networkInfo.getType() == ConnectivityManager.TYPE_MOBILE) { return true; } return false; } /** * 导入数据库 * * @param context the context * @param dbName the db name * @param rawRes the raw res * @return true is successful */ public static boolean importDatabase(Context context, String dbName, int rawRes) { int buffer_size = 1024; InputStream is = null; FileOutputStream fos = null; boolean flag = false; try { String dbPath = "/data/data/" + context.getPackageName() + "/databases/" + dbName; File dbfile = new File(dbPath); //判断数据文件是否存在，若不存在，则执行导入，若存在，直接打开数据库。 if (!dbfile.exists()) { //想要导入的数据库 if (!dbfile.getParentFile().exists()) { dbfile.getParentFile().mkdirs(); } dbfile.createNewFile(); is = context.getResources().openRawResource(rawRes); fos = new FileOutputStream(dbfile); byte[] buffer = new byte[buffer_size]; int count = 0; while ((count = is.read(buffer)) > 0) { fos.write(buffer, 0, count); } fos.flush(); } flag = true; } catch (IOException e) { e.printStackTrace(); } finally {//不要忘记关闭 if (fos != null) { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } if (is != null) { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } } return flag; } /** * 获取屏幕尺寸 * * @param context the context * @return mDisplayMetrics */ public static DisplayMetrics getDisplayMetrics(Context context) { Resources mResources; if (context == null) { mResources = Resources.getSystem(); } else { mResources = context.getResources(); } DisplayMetrics mDisplayMetrics = mResources.getDisplayMetrics(); return mDisplayMetrics; } /** * 打开键盘 * * @param context the context */ public static void showSoftInput(Context context) { InputMethodManager inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); inputMethodManager.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS); } /** * 关闭键盘事件. * * @param context the context */ public static void closeSoftInput(Context context) { InputMethodManager inputMethodManager = (InputMethodManager) context .getSystemService(Context.INPUT_METHOD_SERVICE); if (inputMethodManager != null && ((Activity) context).getCurrentFocus() != null) { inputMethodManager.hideSoftInputFromWindow(((Activity) context) .getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); } } /** * 获取包信息 * * @param context * @return */ public static PackageInfo getPackageInfo(Context context) { PackageInfo info = null; try { String packageName = context.getPackageName(); info = context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_ACTIVITIES); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return info; } /** * 得到包 * @param context * @return */ public static String getPackage(Context context) { try { PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0); return packageInfo.packageName; } catch (Exception e) { } return ""; } /** * 描述：获取运行的进程列表. * * @param context * @return */ public static List<AppProcessInfo> getRunningAppProcesses(Context context) { ActivityManager activityManager = null; List<AppProcessInfo> list = null; PackageManager packageManager = null; try { activityManager = (ActivityManager) context .getSystemService(Context.ACTIVITY_SERVICE); packageManager = context.getApplicationContext() .getPackageManager(); list = new ArrayList<AppProcessInfo>(); // 所有运行的进程 List<ActivityManager.RunningAppProcessInfo> appProcessList = activityManager .getRunningAppProcesses(); ApplicationInfo appInfo = null; AppProcessInfo abAppProcessInfo = null; PackageInfo packageInfo = getPackageInfo(context); if (mProcessList != null) { mProcessList.clear(); } mProcessList = getProcessRunningInfo(); for (ActivityManager.RunningAppProcessInfo appProcessInfo : appProcessList) { abAppProcessInfo = new AppProcessInfo( appProcessInfo.processName, appProcessInfo.pid, appProcessInfo.uid); appInfo = getApplicationInfo(context, appProcessInfo.processName); // appInfo.flags; if (appInfo != null) { if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { abAppProcessInfo.isSystem = true; } else { abAppProcessInfo.isSystem = false; } Drawable icon = appInfo.loadIcon(packageManager); String appName = appInfo.loadLabel(packageManager) .toString(); abAppProcessInfo.icon = icon; abAppProcessInfo.appName = appName; } else { // :服务的命名 if (appProcessInfo.processName.indexOf(":") != -1) { appInfo = getApplicationInfo(context, appProcessInfo.processName.split(":")[0]); Drawable icon = appInfo.loadIcon(packageManager); abAppProcessInfo.icon = icon; } abAppProcessInfo.isSystem = true; abAppProcessInfo.appName = appProcessInfo.processName; } /* * AbPsRow psRow = getPsRow(appProcessInfo.processName); * if(psRow!=null){ abAppProcessInfo.memory = psRow.mem; } */ ProcessInfo processInfo = getMemInfo(appProcessInfo.processName); abAppProcessInfo.memory = processInfo.memory; abAppProcessInfo.cpu = processInfo.cpu; abAppProcessInfo.status = processInfo.status; abAppProcessInfo.threadsCount = processInfo.threadsCount; list.add(abAppProcessInfo); } } catch (Exception e) { e.printStackTrace(); } return list; } /** * 描述：根据进程名返回应用程序. * * @param context * @param processName * @return */ public static ApplicationInfo getApplicationInfo(Context context, String processName) { if (processName == null) { return null; } PackageManager packageManager = context.getApplicationContext() .getPackageManager(); List<ApplicationInfo> appList = packageManager .getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES); for (ApplicationInfo appInfo : appList) { if (processName.equals(appInfo.processName)) { return appInfo; } } return null; } /** * 描述：kill进程. * * @param context * @param pid */ public static void killProcesses(Context context, int pid, String processName) { String cmd = "kill -9 " + pid; String Command = "am force-stop " + processName + "\n"; Process sh = null; DataOutputStream os = null; try { sh = Runtime.getRuntime().exec("su"); os = new DataOutputStream(sh.getOutputStream()); os.writeBytes(Command + "\n"); os.writeBytes(cmd + "\n"); os.writeBytes("exit\n"); os.flush(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { sh.waitFor(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } // AbLogUtil.d(AbAppUtil.class, "#kill -9 "+pid); L.i(processName); ActivityManager activityManager = (ActivityManager) context .getSystemService(Context.ACTIVITY_SERVICE); String packageName = null; try { if (processName.indexOf(":") == -1) { packageName = processName; } else { packageName = processName.split(":")[0]; } activityManager.killBackgroundProcesses(packageName); // Method forceStopPackage = activityManager.getClass() .getDeclaredMethod("forceStopPackage", String.class); forceStopPackage.setAccessible(true); forceStopPackage.invoke(activityManager, packageName); } catch (Exception e) { e.printStackTrace(); } } /** * 描述：根据进程名获取CPU和内存信息. * * @param processName * @return */ public static ProcessInfo getMemInfo(String processName) { ProcessInfo process = new ProcessInfo(); if (mProcessList == null) { mProcessList = getProcessRunningInfo(); } String processNameTemp = ""; for (Iterator<String[]> iterator = mProcessList.iterator(); iterator .hasNext(); ) { String[] item = (String[]) iterator.next(); processNameTemp = item[9]; // AbLogUtil.d(AbAppUtil.class, // "##"+item[9]+",NAME:"+processNameTemp); if (processNameTemp != null && processNameTemp.equals(processName)) { // AbLogUtil.d(AbAppUtil.class, // "##"+item[9]+","+process.memory); // Process ID process.pid = Integer.parseInt(item[0]); // CPU process.cpu = item[2]; // S process.status = item[3]; // thread process.threadsCount = item[4]; // Mem long mem = 0; if (item[6].indexOf("M") != -1) { mem = Long.parseLong(item[6].replace("M", "")) * 1000 * 1024; } else if (item[6].indexOf("K") != -1) { mem = Long.parseLong(item[6].replace("K", "")) * 1000; } else if (item[6].indexOf("G") != -1) { mem = Long.parseLong(item[6].replace("G", "")) * 1000 * 1024 * 1024; } process.memory = mem; // UID process.uid = item[8]; // Process Name process.processName = item[9]; break; } } if (process.memory == 0) { L.d(AppUtil.class, "##" + processName + ",top -n 1未找到"); } return process; } /** * 描述：根据进程ID获取CPU和内存信息. * * @param pid * @return */ public static ProcessInfo getMemInfo(int pid) { ProcessInfo process = new ProcessInfo(); if (mProcessList == null) { mProcessList = getProcessRunningInfo(); } String tempPidString = ""; int tempPid = 0; int count = mProcessList.size(); for (int i = 0; i < count; i++) { String[] item = mProcessList.get(i); tempPidString = item[0]; if (tempPidString == null) { continue; } // AbLogUtil.d(AbAppUtil.class, "##"+item[9]+",PID:"+tempPid); tempPid = Integer.parseInt(tempPidString); if (tempPid == pid) { // AbLogUtil.d(AbAppUtil.class, // "##"+item[9]+","+process.memory); // Process ID process.pid = Integer.parseInt(item[0]); // CPU process.cpu = item[2]; // S process.status = item[3]; // thread process.threadsCount = item[4]; // Mem long mem = 0; if (item[6].indexOf("M") != -1) { mem = Long.parseLong(item[6].replace("M", "")) * 1000 * 1024; } else if (item[6].indexOf("K") != -1) { mem = Long.parseLong(item[6].replace("K", "")) * 1000; } else if (item[6].indexOf("G") != -1) { mem = Long.parseLong(item[6].replace("G", "")) * 1000 * 1024 * 1024; } process.memory = mem; // UID process.uid = item[8]; // Process Name process.processName = item[9]; break; } } return process; } /** * 描述：执行命令. * * @param command * @param workdirectory * @return */ public static String runCommand(String[] command, String workdirectory) { String result = ""; L.d(AppUtil.class, "#" + command); try { ProcessBuilder builder = new ProcessBuilder(command); // set working directory if (workdirectory != null) { builder.directory(new File(workdirectory)); } builder.redirectErrorStream(true); Process process = builder.start(); InputStream in = process.getInputStream(); byte[] buffer = new byte[1024]; while (in.read(buffer) != -1) { String str = new String(buffer); result = result + str; } in.close(); } catch (Exception e) { e.printStackTrace(); } return result; } /** * 描述：运行脚本. * * @param script * @return */ public static String runScript(String script) { String sRet = ""; try { final Process m_process = Runtime.getRuntime().exec(script); final StringBuilder sbread = new StringBuilder(); Thread tout = new Thread(new Runnable() { public void run() { BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(m_process.getInputStream()), 8192); String ls_1 = null; try { while ((ls_1 = bufferedReader.readLine()) != null) { sbread.append(ls_1).append("\n"); } } catch (IOException e) { e.printStackTrace(); } finally { try { bufferedReader.close(); } catch (IOException e) { e.printStackTrace(); } } } }); tout.start(); final StringBuilder sberr = new StringBuilder(); Thread terr = new Thread(new Runnable() { public void run() { BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(m_process.getErrorStream()), 8192); String ls_1 = null; try { while ((ls_1 = bufferedReader.readLine()) != null) { sberr.append(ls_1).append("\n"); } } catch (IOException e) { e.printStackTrace(); } finally { try { bufferedReader.close(); } catch (IOException e) { e.printStackTrace(); } } } }); terr.start(); int retvalue = m_process.waitFor(); while (tout.isAlive()) { Thread.sleep(50); } if (terr.isAlive()) terr.interrupt(); String stdout = sbread.toString(); String stderr = sberr.toString(); sRet = stdout + stderr; } catch (Exception e) { e.printStackTrace(); return null; } return sRet; } /** * 应用程序运行命令获取 Root权限，设备必须已破解(获得ROOT权限) * * @return 应用程序是/否获取Root权限 */ public static boolean getRootPermission(Context context) { String packageCodePath = context.getPackageCodePath(); Process process = null; DataOutputStream os = null; try { String cmd = "chmod 777 " + packageCodePath; // 切换到root帐号 process = Runtime.getRuntime().exec("su"); os = new DataOutputStream(process.getOutputStream()); os.writeBytes(cmd + "\n"); os.writeBytes("exit\n"); os.flush(); process.waitFor(); } catch (Exception e) { return false; } finally { try { if (os != null) { os.close(); } process.destroy(); } catch (Exception e) { e.printStackTrace(); } } return true; } /** * 描述：获取进程运行的信息. * * @return */ public static List<String[]> getProcessRunningInfo() { List<String[]> processList = null; try { String result = runCommandTopN1(); processList = parseProcessRunningInfo(result); } catch (Exception e) { e.printStackTrace(); } return processList; } /** * 描述：top -n 1. * * @return */ public static String runCommandTopN1() { String result = null; try { String[] args = {"/system/bin/top", "-n", "1"}; result = runCommand(args, "/system/bin/"); } catch (Exception e) { e.printStackTrace(); } return result; } /** * 描述：解析数据. * * @param info User 39%, System 17%, IOW 3%, IRQ 0% PID PR CPU% S #THR VSS * RSS PCY UID Name 31587 0 39% S 14 542288K 42272K fg u0_a162 * cn.amsoft.process 313 1 17% S 12 68620K 11328K fg system * /system/bin/surfaceflinger 32076 1 2% R 1 1304K 604K bg * u0_a162 /system/bin/top * @return */ public static List<String[]> parseProcessRunningInfo(String info) { List<String[]> processList = new ArrayList<String[]>(); int Length_ProcStat = 10; String tempString = ""; boolean bIsProcInfo = false; String[] rows = null; String[] columns = null; rows = info.split("[\n]+"); // 使用正则表达式分割字符串 for (int i = 0; i < rows.length; i++) { tempString = rows[i]; // AbLogUtil.d(AbAppUtil.class, tempString); if (tempString.indexOf("PID") == -1) { if (bIsProcInfo == true) { tempString = tempString.trim(); columns = tempString.split("[ ]+"); if (columns.length == Length_ProcStat) { // 把/system/bin/的去掉 if (columns[9].startsWith("/system/bin/")) { continue; } // AbLogUtil.d(AbAppUtil.class, // "#"+columns[9]+",PID:"+columns[0]); processList.add(columns); } } } else { bIsProcInfo = true; } } return processList; } /** * 描述：获取可用内存. * * @param context * @return */ public static long getAvailMemory(Context context) { // 获取android当前可用内存大小 ActivityManager activityManager = (ActivityManager) context .getSystemService(Context.ACTIVITY_SERVICE); ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo(); activityManager.getMemoryInfo(memoryInfo); // 当前系统可用内存 ,将获得的内存大小规格化 return memoryInfo.availMem; } /** * 描述：总内存. * * @param context * @return */ public static long getTotalMemory(Context context) { // 系统内存信息文件 String file = "/proc/meminfo"; String memInfo; String[] strs; long memory = 0; try { FileReader fileReader = new FileReader(file); BufferedReader bufferedReader = new BufferedReader(fileReader, 8192); // 读取meminfo第一行，系统内存大小 memInfo = bufferedReader.readLine(); strs = memInfo.split("\\s+"); for (String str : strs) { L.d(AppUtil.class, str + "\t"); } // 获得系统总内存，单位KB memory = Integer.valueOf(strs[1]).intValue(); bufferedReader.close(); } catch (Exception e) { e.printStackTrace(); } // Byte转位KB或MB return memory * 1024; }}以上相关信息总结于：
https://github.com/joyoyao/superCleanMaster
一键清理 开源版，包括内存加速，缓存清理，自启管理，软件管理等。
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