private void checkAndLaunchUpdate() {
Log.i(LOG_FILE_NAME, "Checking for an update");
int statusCode = 8; // UNEXPECTED_ERROR
File baseUpdateDir = null;
if (Build.VERSION.SDK_INT >= 8)
baseUpdateDir = getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS);
else baseUpdateDir = new File(Environment.getExternalStorageDirectory().getPath(), "download");
File updateDir = new File(new File(baseUpdateDir, "updates"), "0");
File updateFile = new File(updateDir, "update.apk");
File statusFile = new File(updateDir, "update.status");
if (!statusFile.exists() || !readUpdateStatus(statusFile).equals("pending")) return;
if (!updateFile.exists()) return;
Log.i(LOG_FILE_NAME, "Update is available!");
// Launch APK
File updateFileToRun = new File(updateDir, getPackageName() + "-update.apk");
try {
if (updateFile.renameTo(updateFileToRun)) {
String amCmd =
"/system/bin/am start -a android.intent.action.VIEW "
+ "-n com.android.packageinstaller/.PackageInstallerActivity -d file://"
+ updateFileToRun.getPath();
Log.i(LOG_FILE_NAME, amCmd);
Runtime.getRuntime().exec(amCmd);
statusCode = 0; // OK
} else {
Log.i(LOG_FILE_NAME, "Cannot rename the update file!");
statusCode = 7; // WRITE_ERROR
}
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error launching installer to update", e);
}
// Update the status file
String status = statusCode == 0 ? "succeeded\n" : "failed: " + statusCode + "\n";
OutputStream outStream;
try {
byte[] buf = status.getBytes("UTF-8");
outStream = new FileOutputStream(statusFile);
outStream.write(buf, 0, buf.length);
outStream.close();
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error writing status file", e);
}
if (statusCode == 0) System.exit(0);
}
private List<Map<String, Object>> getData() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
String linuxVer = cmd.executeCat("/proc/version");
int pos = linuxVer.indexOf(" (");
if (pos >= 0) {
linuxVer = linuxVer.substring(0, pos);
}
Map<String, Object> map = new HashMap<String, Object>();
map.put("title", "Linux version");
map.put("info", linuxVer);
// map.put("no", 1);
list.add(map);
String cpuInfo = cmd.executeCat("/proc/cpuinfo");
pos = cpuInfo.indexOf(": ");
int pos2 = cpuInfo.indexOf("\n");
cpuInfo = cpuInfo.substring(pos + 2, pos2);
map = new HashMap<String, Object>();
map.put("title", "Cpu info");
map.put("info", cpuInfo);
// map.put("no", 2);
list.add(map);
ActivityManager.MemoryInfo memInfo = new ActivityManager.MemoryInfo();
activityManager.getMemoryInfo(memInfo);
String memStr = cmd.executeCat("/proc/meminfo");
Pattern pattern = Pattern.compile("(\\d+)");
Matcher match = pattern.matcher(memStr);
if (match.find()) {
int allMem = Integer.parseInt(match.group(1));
memStr = "" + allMem / 1024;
}
map = new HashMap<String, Object>();
map.put("title", "Memory");
map.put(
"info", "Total: " + memStr + " MB Available: " + memInfo.availMem / 1024 / 1024 + " MB");
// map.put("no", 3);
list.add(map);
String netInfo = getIp();
if (netInfo == null) {
netInfo = cmd.execute(new String[] {"/system/bin/netcfg"});
if (netInfo.length() > 0) {
netInfo = netInfo.substring(0, netInfo.length() - 1);
}
}
map = new HashMap<String, Object>();
map.put("title", "Network");
map.put("info", netInfo);
// map.put("no", 4);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "Screen");
map.put("info", getDisplayMetrics());
// map.put("no", 5);
list.add(map);
cpuInfo = cmd.executeCat("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");
// Log.v("Hardware Activity", "cpu freq=" + cpuInfo);
long cpuFreq = -1;
try {
cpuInfo = cpuInfo.substring(0, cpuInfo.length() - 1);
cpuFreq = Long.valueOf(cpuInfo);
} catch (Exception e) {
}
map = new HashMap<String, Object>();
map.put("title", "CPU Freq");
map.put("info", cpuFreq > 0 ? (cpuFreq / 1000 + " MHz") : "unknow");
// map.put("no", 6);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "Battery");
map.put("info", mLastBattery);
// map.put("no", 7);
list.add(map);
long[] romInfo = getRomMemroy();
map = new HashMap<String, Object>();
map.put("title", "Rom info");
map.put("info", "All: " + formatSize(romInfo[0]) + " Available: " + formatSize(romInfo[1]));
// map.put("no", 8);
list.add(map);
long[] cardInfo = getSDCardMemory();
map = new HashMap<String, Object>();
map.put("title", "SDCard info");
map.put("info", "All: " + formatSize(cardInfo[0]) + " Available: " + formatSize(cardInfo[1]));
// map.put("no", 9);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "Mac Address");
map.put("info", getMacAddress());
// map.put("no", 10);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "Startup ElapsedTime");
map.put("info", getStartupElapsedTimes());
// map.put("no", 11);
list.add(map);
Runtime runtime = Runtime.getRuntime();
int maxMemory = ((int) runtime.maxMemory()) / 1024 / 1024;
// 应用程序已获得内存
long totalMemory = ((int) runtime.totalMemory()) / 1024 / 1024;
// 应用程序已获得内存中未使用内存
long freeMemory = ((int) runtime.freeMemory()) / 1024 / 1024;
ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
int heapMemory = am.getMemoryClass();
int largeHeapMemory = am.getLargeMemoryClass();
// /system/build.prop dalvik.vm.heapstartsize dalvik.vm.heapgrowthlimit
// dalvik.vm.heapsize=512m
map = new HashMap<String, Object>();
map.put("title", "App Memory");
map.put(
"info",
String.format(
Locale.getDefault(),
"maxMemory=%dM, totalMemory=%dM, freeMemory=%dM, heapMemory=%dM, largeHeapMemory=%dM(可能还是heap, 待验证)",
maxMemory,
totalMemory,
freeMemory,
heapMemory,
largeHeapMemory));
// map.put("no", 12);
list.add(map);
return list;
}