lulululbj / androidutilcodektx

Kotlin Android Util Code

Hi there 👋

androidutilcodektx's Issues

我用的一些扩展

1、Intent 获取参数,以 String 为例：

fun Activity.extraString(key: String, default: String = ""): Lazy<String> = lazy {
    intent?.extras?.getString(key) ?: default
}

示例：：

 private val vinCode: String by extraString(DATA_VIN_CODE)

2、Boolean 的扩展，链式调用：

object Otherwise : BooleanExt<Nothing>()
class TransferData<T>(val data: T) : BooleanExt<T>()

inline fun <T> Boolean.yes(block: () -> T): BooleanExt<T> = when {
    this -> TransferData(block.invoke())
    else -> Otherwise
}

inline fun <T> BooleanExt<T>.otherwise(block: () -> T): T = when (this) {
    is Otherwise -> block.invoke()
    is TransferData -> this.data
}

示例：

isNotEmpty().yes {

}.otherwise {

}

这样嵌套用多了代码又丑又难阅读😂

3、view 防止多次点击

• 通过时间判断

fun View.singleClick(clickEventFun: () -> Unit) {
    this.setOnClickListener {
        if (Utils.isFastClick()) {
            clickEventFun.invoke()
        }
    }
}

• 使用 rxjava 去重（目前已废弃），

@SuppressLint("CheckResult")
@Deprecated("memory leak")
fun View.singleClick(
    intervalDuration: Long = 1,
    unit: TimeUnit = TimeUnit.SECONDS,
    eventFun: () -> Unit
) {
    Observable
        .create(object : ObservableOnSubscribe<View> {
            lateinit var mEmitter: ObservableEmitter<View>

            init {
                [email protected] {
                    mEmitter.onNext(it)
                }
            }

            override fun subscribe(emitter: ObservableEmitter<View>) {
                mEmitter = emitter
            }
        })
        .throttleLast(intervalDuration, unit)
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe {
            eventFun()
        }
}

LogExt无法打印，BuildConfig.DEBUG返回false

我明明是 数据线直接运行的，就是Debug环境，然后你那个LogExt的判断showLog 就是一直返回 false

在fragment initview 或initdata 中 初始化lateinit property mViewModel问题

考虑做一个 ZipFile 的扩展吗

或者做一个 zip4J 的扩展，https://github.com/srikanth-lingala/zip4j 这个 java 库非常棒，但是他的 api 不太友好，如果用 kt 封装一下就很美好了。

Val cannot be reassigned

fun Context.copyToClipboard(label: String, text: String) {
val cm = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
val clipData = ClipData.newPlainText(label, text)
cm.primaryClip = clipData
}

最后一行报错

文件和缓存相关

这两个应该也是比较常用的，坐等添加~

异常捕捉

mException.value = e 在案例中onError方法还是接收不到

这个崩

java.lang.RuntimeException: Unable to start activity ComponentInfo{luyao.ktx/luyao.util.ktx.mvvm.MvvmActivity}: java.lang.IllegalStateException: You can consumeRestoredStateForKey only after super.onCreate of corresponding component
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2883)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2958)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1654)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6653)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:770)
Caused by: java.lang.IllegalStateException: You can consumeRestoredStateForKey only after super.onCreate of corresponding component
at androidx.savedstate.SavedStateRegistry.consumeRestoredStateForKey(SavedStateRegistry.java:77)
at androidx.lifecycle.AbstractSavedStateViewModelFactory.create(AbstractSavedStateViewModelFactory.java:65)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:177)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:145)
at luyao.util.ktx.base.BaseVMActivity.initVM(BaseVMActivity.kt:24)
at luyao.util.ktx.base.BaseVMActivity.onCreate(BaseVMActivity.kt:17)
at android.app.Activity.performCreate(Activity.java:6975)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2836)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2958) 
at android.app.ActivityThread.-wrap11(Unknown Source:0) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1654) 
at android.os.Handler.dispatchMessage(Handler.java:105) 
at android.os.Looper.loop(Looper.java:164) 
at android.app.ActivityThread.main(ActivityThread.java:6653) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:770) 

baseactivity 的getLayoutResId()可以作为参数layoutID 传到activity，这样不用写方法.

Activity的管理

activity的管理lifecycle这块为什么没有加进来呢?

建议加上保存集合数据的工具类

如题，实际使用中无论是sp还是文件都有时会遇到保存集合数据的时候，但是集合没有本身序列化，每次都又要自己去处理