AndroidUtilCodeKTX ！是时候提升你的开发效率了 ！（更新啦 ！）

implementation 'luyao.util.ktx:AndroidUtilKTX:0.0.6'
复制代码

* 增加 log 开关
* 增加 TextView.notEmpty() 扩展方法
* 增加 ShellExt , 提供执行命令行相关函数
* BaseVMFragment、BaseVMActivity 中添加默认异常处理回调
* android 版本判断
* 判断无障碍服务是否开启
* RecyclerView.itemPadding
* 发送邮件
* 文件相关
* BaseActivity/BaseFragment 添加 CoroutineScope 实现
* 自动感知生命周期的 KtxHandler
* Activity 统一管理
* 应用前后台监听
* KtxSpan, 封装常见 Span 的使用
复制代码

if (obj == null) {
    ...
} else {
    ...
}
复制代码

obj.notNull({
    ...    
}, {
    ...    
})
复制代码

fun <T> Any?.notNull(f: () -> T, t: () -> T): T {
    return if (this != null) f() else t()
}
复制代码

fun TextView.notEmpty(f: TextView.() -> Unit, t: TextView.() -> Unit) {
    if (text.toString().isNotEmpty()) f() else t()
}
复制代码

fun executeCmd(command: String): String {
    val process = Runtime.getRuntime().exec(command)
    val resultReader = BufferedReader(InputStreamReader(process.inputStream))
    val errorReader = BufferedReader(InputStreamReader(process.errorStream))
    val resultBuilder = StringBuilder()
    var resultLine: String? = resultReader.readLine()
    val errorBuilder = StringBuilder()
    var errorLine = errorReader.readLine()
    while (resultLine != null) {
        resultBuilder.append(resultLine)
        resultLine = resultReader.readLine()
    }
    while (errorLine != null) {
        errorBuilder.append(errorLine)
        errorLine = errorReader.readLine()
    }
    return "$resultBuilder\n$errorBuilder"
}
复制代码

fun fromM() = fromSpecificVersion(Build.VERSION_CODES.M)
fun beforeM() = beforeSpecificVersion(Build.VERSION_CODES.M)
fun fromN() = fromSpecificVersion(Build.VERSION_CODES.N)
fun beforeN() = beforeSpecificVersion(Build.VERSION_CODES.N)
fun fromO() = fromSpecificVersion(Build.VERSION_CODES.O)
fun beforeO() = beforeSpecificVersion(Build.VERSION_CODES.O)
fun fromP() = fromSpecificVersion(Build.VERSION_CODES.P)
fun beforeP() = beforeSpecificVersion(Build.VERSION_CODES.P)
fun fromSpecificVersion(version: Int): Boolean = Build.VERSION.SDK_INT >= version
fun beforeSpecificVersion(version: Int): Boolean = Build.VERSION.SDK_INT < version
复制代码

fun Context.checkAccessbilityServiceEnabled(serviceName: String): Boolean {
    val settingValue =
        Settings.Secure.getString(applicationContext.contentResolver, Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES)
    return settingValue.notNull({
        var result = false
        val splitter = TextUtils.SimpleStringSplitter(':')
        while (splitter.hasNext()) {
            if (splitter.next().equals(serviceName, true)) {
                result = true
                break
            }
        }
        result
    }, { false })
}
复制代码

fun RecyclerView.itemPadding(top: Int, bottom: Int, left: Int = 0, right: Int = 0) {
    addItemDecoration(PaddingItemDecoration(top, bottom, left, right))
}
复制代码

commonRecycleView.run {
    itemPadding(5, 5, 10, 10)
    layoutManager = LinearLayoutManager(this@CommonListActivity)
    adapter = commonAdapter
}
复制代码

fun Context.sendEmail(email: String, subject: String?, text: String?) {
    Intent(Intent.ACTION_SENDTO, Uri.parse("mailto:$email")).run {
        subject?.let { putExtra(Intent.EXTRA_SUBJECT, subject) }
        text?.let { putExtra(Intent.EXTRA_TEXT, text) }
        startActivity(this)
    }
}
复制代码

val File.canListFiles: Boolean ：是否可以获取子文件夹
val File.totalSize: Long       ：总大小，包括所有子文件夹
val File.formatSize: String    ：格式化文件总大小，包括所有子文件夹
val File.mimeType: String      ：获取文件 mimeType
/**
 * [isRecursive] 是否获取所有子文件夹
 * [filter] 文件过滤器
 * /
fun File.listFiles(isRecursive: Boolean = false, filter: ((file: File) -> Boolean)? = null): Array<out File> {}
/**
 * [append] 是否追加
 * [text] 要 write 的内容
 * [charset] 字符编码
 * /
fun File.writeText(append: Boolean = false, text: String, charset: Charset = Charsets.UTF_8)
fun File.writeBytes(append: Boolean = false, bytes: ByteArray)
/**
 *   [destFile]  目标文件/文件夹
 *   [overwrite] 是否覆盖
 *   [reserve] 是否保留源文件
 */
fun File.moveTo(destFile: File, overwrite: Boolean = true, reserve: Boolean = true)
/**
 *   [destFolder] 目标文件/文件夹
 *   [overwrite] 是否覆盖
 *   [func] 单个文件的进度回调 (from 0 to 100)
 */
fun File.moveToWithProgress(
    destFolder: File,
    overwrite: Boolean = true,
    reserve: Boolean = true,
    func: ((file: File, i: Int) -> Unit)? = null
)
fun File.rename(newName: String)
fun File.rename(newFile: File)
复制代码

abstract class BaseActivity : AppCompatActivity(), CoroutineScope by MainScope() {
    ...
    ...
    override fun onDestroy() {
        super.onDestroy()
        cancel()
    }
}
复制代码

class KtxHandler(lifecycleOwner: LifecycleOwner, callback: Callback) : Handler(callback), LifecycleObserver {
    private val mLifecycleOwner: LifecycleOwner = lifecycleOwner
    init {
        lifecycleOwner.lifecycle.addObserver(this)
    }
    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    private fun onDestroy() {
        removeCallbacksAndMessages(null)
        mLifecycleOwner.lifecycle.removeObserver(this)
    }
}
复制代码

fun  finishActivity(clazz: Class<*>){
    for (activity in mActivityList)
        if (activity.javaClass == clazz)
            activity.finish()
}
fun finishAllActivity() {
    for (activity in mActivityList)
        activity.finish()
}
复制代码

KtxSpan().with(spanTv).show {
            text(
                "SpanUtils",
                foregroundColor = Color.YELLOW,
                backgroundColor = Color.LTGRAY,
                alignment = Layout.Alignment.ALIGN_CENTER
            )
            text("前景色", foregroundColor = Color.GREEN)
            text("背景色", backgroundColor = Color.LTGRAY)
            blockLine(spanTv.dp2px(6), true)
            text("行高", lineHeight = 2 * spanTv.lineHeight, backgroundColor = Color.LTGRAY)
            text(
                "测试段落缩进，首行缩进两字，其他行不缩进，其他行不缩进",
                first = (spanTv.textSize * 2).toInt(),
                rest = 0,
                backgroundColor = Color.GREEN
            )
            text(
                "测试引用，后面的字是为了凑到两行的效果",
                quoteColor = Color.GREEN,
                quoteStripeWidth = 10,
                quoteGapWidth = 10,
                backgroundColor = Color.LTGRAY
            )
            image(
                R.drawable.small,
                verticalAlignment = ImageSpan.ALIGN_BOTTOM,
                marginLeft = dp2px(30),
                marginRight = dp2px(40)
            )
}
复制代码