/**
* 通过包名获取task id，不存在为-1
*
* @param packageName
* @return
*/
public int getTaskId(String packageName) {
String result = execRootCmd("dumpsys activity | grep " + packageName);
int start = result.indexOf("TaskRecord{");
if(start > 0){
int end = result.indexOf("}", start);
if(start < end){
String taskStr = result.substring(start + 1, end);
start = -1;
end = -1;
start = taskStr.indexOf("#");
if (start > 0) {
end = taskStr.indexOf(" ", start);
if (start < end) {
String idStr = taskStr.substring(start + 1, end);
Log.d(TAG, "getTaskId:" + idStr);
if (isNumeric(idStr))
return Integer.parseInt(idStr);
}
}
}
}
return -1;
}
exeRootCmd可以见http://www.sharezer.com/archives/1314
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