jkstill

Decoding the data in /proc/net/tcp:

Linux 5.x  /proc/net/tcp
Linux 6.x  /proc/PID/net/tcp

Given a socket:

$ ls -l  /proc/24784/fd/11
lrwx------ 1 jkstill dba 64 Dec  4 16:22 /proc/24784/fd/11 -> socket:[15907701]

jieyu

How View.invalidate() is processed in Android

This document is based on the code of android-4.1.1_r6 (Jelly Bean).

First, the invalidate() call will be propagated back to the root of the view hierarchy. During the propagation, the system determines the dirty area that needs to be redrawn. The propagation will eventually reach ViewRootImpl.

frameworks/base/core/java/android/view/View.java

10219   void invalidate(boolean invalidateCache) {

... ...

JakeWharton

// Apache 2.0 licensed.

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

/** An implementation of {@link BaseAdapter} which uses the new/bind pattern for its views. */
public abstract class BindableAdapter<T> extends BaseAdapter {

ManuelPeinado

package com.manuelpeinado;

import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

/**
 * A variation on Jake Wharton's BindingAdapter (https://gist.github.com/JakeWharton/5423616) which is slightly more convenient   
 * for adapters that only have one view type
 */

ficusk

import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;

rfreedman

import android.os.SystemClock;
import android.view.View;

import java.util.Map;
import java.util.WeakHashMap;

/**
 * A Debounced OnClickListener
 * Rejects clicks that are too close together in time.
 * This class is safe to use as an OnClickListener for multiple views, and will debounce each one separately.

granoeste

System directories

Method	Result
Environment.getDataDirectory()	/data
Environment.getDownloadCacheDirectory()	/cache
Environment.getRootDirectory()	/system

External storage directories

JakeWharton

import com.android.volley.toolbox.HurlStack;
import com.squareup.okhttp.OkHttpClient;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * An {@link com.android.volley.toolbox.HttpStack HttpStack} implementation which
 * uses OkHttp as its transport.
 */

castorflex

Make your multiple type view adapter with annotations!

Gist for Making a Multiple View Types Adapter With Annotations

Pretty easy to use.

1. Create your delegate adapters, implementing DelegateAdapter, and with the annotation DelegateAdapterType. e.g:

@DelegateAdapterType(itemType = 0)

pboos

configurations {
    apt
}

dependencies {
    compile 'com.squareup.dagger:dagger:1.1.0'
    apt 'com.squareup.dagger:dagger-compiler:1.1.0'
}

android.applicationVariants.all { variant ->