/**
* 写文件
*
* @param 文件路径
* @param 内容列表
* @param 附加是附加的 ,如果这是真的,其他写的文件,明确内容的文件和写进去
* @return 否则返回假如果contentList是空的,真的
* @throws RuntimeException if an error occurs while operator FileWriter
*/
public static boolean writeFile(String filePath, List<String> contentList, boolean append) {
if (ListUtils.isEmpty(contentList)) {
return false;
}
FileWriter fileWriter = null;
try {
makeDirs(filePath);
fileWriter = new FileWriter(filePath, append);
int i = 0;
for (String line : contentList) {
if (i++ > 0) {
fileWriter.write("\r\n");
}
fileWriter.write(line);
}
fileWriter.close();
return true;
} catch (IOException e) {
throw new RuntimeException("IOException occurred. ", e);
} finally {
if (fileWriter != null) {
try {
fileWriter.close();
} catch (IOException e) {
throw new RuntimeException("IOException occurred. ", e);
}
}
}
}
/**
* whether the app whost package's name is packageName is on the top of the stack
*
* <ul>
* <strong>Attentions:</strong>
* <li>You should add <strong>android.permission.GET_TASKS</strong> in manifest
* </ul>
*
* @param context
* @param packageName
* @return if params error or task stack is null, return null, otherwise retun whether the app is
* on the top of stack
*/
public static Boolean isTopActivity(Context context, String packageName) {
if (context == null || StringUtils.isEmpty(packageName)) {
return null;
}
ActivityManager activityManager =
(ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> tasksInfo = activityManager.getRunningTasks(1);
if (ListUtils.isEmpty(tasksInfo)) {
return null;
}
try {
return packageName.equals(tasksInfo.get(0).topActivity.getPackageName());
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* whether this process is named with processName
*
* @param context
* @param processName
* @return
* <ul>
* return whether this process is named with processName
* <li>if context is null, return false
* <li>if {@link ActivityManager#getRunningAppProcesses()} is null, return false
* <li>if one process of {@link ActivityManager#getRunningAppProcesses()} is equal to
* processName, return true, otherwise return false
* </ul>
*/
public static boolean isNamedProcess(Context context, String processName) {
if (context == null) {
return false;
}
int pid = android.os.Process.myPid();
ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> processInfoList = manager.getRunningAppProcesses();
if (ListUtils.isEmpty(processInfoList)) {
return false;
}
for (RunningAppProcessInfo processInfo : processInfoList) {
if (processInfo != null
&& processInfo.pid == pid
&& ObjectUtils.isEquals(processName, processInfo.processName)) {
return true;
}
}
return false;
}