LanderlYoung

sealed class LiveEvent<T> : LiveData<T>() {
    private var version = 0

    /**
     *  override hashCode and equals,
     *  so-that, [LiveData.removeObserver] still can work
     */
    private inner class ObserverWrapper<T>(
        private val other: Observer<T>
    ) : Observer<T> {

LanderlYoung

class ViewModel_1 {
    val name = LiveData<String>()
    val gender = LiveData<Boolean>()
    val loading = LiveData<Boolean>()

    val errorMessage = LiveEvent<String>()

    fun follow() {
        api.follow(xxx)
    }

LanderlYoung

ADB=${ANDROID_HOME}/platform-tools/adb
HPROF_CONV=${ANDROID_HOME}/platform-tools/hprof-conv

# customized functions
# dump droid heap
function droid_hd() {
    PACKAGE_NAME=$1

    TIME=$(date +"%Y%m%d_%H%M%S")
    FILE_NAME="${PACKAGE_NAME}-${TIME}-heap.hprof"

LanderlYoung

Installing and running shadowsocks on Ubuntu Server

16.10 yakkety and above

1. Install the the shadowsocks-libev package from apt repository.

    sudo apt update
    sudo apt install shadowsocks-libev
   

2. Save ss.json as /etc/shadowsocks-libev/config.json.

LanderlYoung

#!/usr/bin/env python
# encoding: utf-8

from __future__ import print_function

'''
analyze /proc/<pid>/smaps

doc
http://liutaihua.github.io/2013/04/25/process-smaps-analysis.html

LanderlYoung

ArrayMap ClassCastException Deep Analyze

preface

I'm a developer of 企鹅FM. Our app constantly report ClassCastException on ArrayMap, some stack trace looks like this.

Intent i = new Intent(ACTION);
i.putExtra(KEY, VALUE); // crashes here