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再说WCF Data Contract KnownTypeAttribute - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...一种标识方式是不用加代码的，在配置文件中通过声明型编程实现：
<system.runtime.serialization>
<dataContractSerializer>
<declaredTypes>
<add type="WcfServiceDemo.Address, MyAssembly, Version=2.0.0.0, Culture=neutral,PublicKeyToken=null, processorArchitect...
What's the best way to limit text length of EditText in Android
...ew InputFilter.LengthFilter(maxLength);
editText.setFilters(newFilters);
Kotlin however made it easier for everyone, you also need to add the filter to the already existing ones but you can achieve that with a simple:
editText.filters += InputFilter.LengthFilter(maxLength)
...
How to add -Xlint:unchecked to my Android Gradle based project?
...
For deprecation, you can now use this in gradle kotlin script, which is better than modifying compilerArgs because it's type-safe:
tasks.withType<JavaCompile> {
options.isDeprecation = true
}
...
Get current date in milliseconds
...Now().UnixNano() / 1000000
Hive* unix_timestamp() * 1000
Java / Groovy / Kotlin System.currentTimeMillis()
Javascript new Date().getTime()
MySQL* UNIX_TIMESTAMP() * 1000
Objective-C (long long)([[NSDate date] timeIntervalSi
Wrong requestCode in onActivityResult
...
Easier:
Java:
int unmaskedRequestCode = requestCode & 0x0000ffff
Kotlin:
val unmaskedRequestCode = requestCode and 0x0000ffff
Check for the lower 16 bits, just unmask it doing a logical AND with the upper 16 bits zeroed
protected void onActivityResult(int requestCode, int resultCode, Int...
Android read text raw resource file
...
Well with Kotlin u can do it just in one line of code:
resources.openRawResource(R.raw.rawtextsample).bufferedReader().use { it.readText() }
Or even declare extension function:
fun Resources.getRawTextFile(@RawRes id: Int) =
...
Use “ENTER” key on softkeyboard instead of clicking button
...
We can also use Kotlin lambda
editText.setOnKeyListener { _, keyCode, keyEvent ->
if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER) {
Log.d("Android view component", "Enter butt...
Android: open activity without save into the stack
...
Just wanted to add a way to do this in Kotlin:
val i = Intent(this, LogInActivity::class.java)
startActivity(i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK))
...
How can I set the focus (and display the keyboard) on my EditText programmatically
...
Here is how a kotlin extension for showing and hiding the soft keyboard can be made:
fun View.showKeyboard() {
this.requestFocus()
val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
...
Disable soft keyboard on NumberPicker
...x 1.2.0-rc2, and I combined it with isClickable=true and isFocusable=true (Kotlin)
– hgoebl
Jul 25 at 5:33
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