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/**
 * Created by Howard Chang on 2018/09/13.
 */
class HttpLogger : HttpLoggingInterceptor.Logger {

    private var sBuilder = StringBuilder()

    override fun log(message: String) {
        var mMessage: String = message

hwd6190128

DiffUtil

DiffUtil是support-v7:24.2.0中新增的工具類，它用來比較兩個數據，尋找兩者之間的最小變化量，再將算好的結果return。因此凡是數據集的比較都能做，DiffUtil提供了callback讓user進行其他操作，本篇著重在RecyclerView的更新。

演算法

採用Myers的差異算法(git diff)。空間複雜度為O(n)，時間複雜度為O(N + D ^2)。 主要是計算兩個數據集添加和刪除的最小差異數，也就是用最簡單的方式將一個數據集轉換為另一個。 DiffUtil預設支援數據的移動偵測，所以需要對結果進行二次運算，較為耗費效能，時間複雜度提高到O(N ^ 2)，N是add和remove的操作總數；但如果數據集已根據條件排序，或是數據集中的數據不存在移位情境，可以關掉第二次計算來提高效能。

使用

它最大的用處就是在RecyclerView刷新時，不再無腦notifyDataSetChanged()，原本的notifyDataSetChanged()有兩個缺點：

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/**
 * Created by Howard Chang on 2018/11/13.
 *
 * @param recyclerView 被綁定的RecyclerView
 * @param mIsLoadMore 是否要演出刷新動畫
 * @param mIsAnim 是否有LoadMore功能，有得話在刷新之後復位position
 */
abstract class BaseDiffAdapter<T, V : RecyclerView.ViewHolder>(
        protected val recyclerView: RecyclerView? = null
        , protected val mIsLoadMore: Boolean = false

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 webView.setWebViewClient(new WebViewClient() {

            @SuppressWarnings("deprecation")
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                return handlerUri(view, Uri.parse(url));
            }

            @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
            @Override

hwd6190128

setup adb

Add platform-tools to your path

echo 'export ANDROID_HOME=/Users/$USER/Library/Android/sdk' >> ~/.bash_profile
echo 'export PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools' >> ~/.bash_profile

Refresh your bash profile (or restart your terminal app)

source ~/.bash_profile

hwd6190128

val Int.pxToDp: Int
    get() = (this / Resources.getSystem().displayMetrics.density).toInt()
    
val Int.dpToPx: Int
    get() = (this * Resources.getSystem().displayMetrics.density).toInt()    
    
val Int.spToPx: Int
    get() = (this * Resources.getSystem().displayMetrics.scaledDensity).toInt()

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/**
 * immersiveMode
 * set onPostResume, onSystemUiVisibilityChange
 */
fun immersiveMode(activity: Activity) {
    activity.window.clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN)
    activity.window
        .setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN)
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {

hwd6190128

/**
 * Created by Howard Chang on 2018/10/25.
 */
object ResUtils {

    fun getStringArray(@ArrayRes id: Int, context: Context): Array<String> {
        return context.resources.getStringArray(id)
    }

    fun getIntArray(@ArrayRes id: Int, context: Context): IntArray {

hwd6190128

import android.view.View
import android.view.animation.Animation
import android.view.animation.Transformation

/**
 * Created by Howard Chang on 2018/10/25.
 */
object AnimUtils {

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object DateUtils {

    internal const val ONE_MINUTE: Long = 60
    internal const val HALF_HOUR: Long = 30 * 60 // 1800
    internal const val ONE_HOUR: Long = 60 * 60 // 3600
    internal const val ONE_DAY: Long = 24 * 60 * 60 // 86400
    internal const val HALF_MONTH: Long = ONE_DAY * 15 // 1296000
    internal const val ONE_MONTH: Long = ONE_DAY * 30 // 2592000
    internal const val HALF_YEAR: Long = ONE_MONTH * 6 // 15552000
    internal const val ONE_YEAR: Long = ONE_MONTH * 12 // 31104000