如何修复此代码中的弃用警告?或者,还有其他的选择吗?
Handler().postDelayed({
context?.let {
//code
}
}, 3000)
如何修复此代码中的弃用警告?或者,还有其他的选择吗?
Handler().postDelayed({
context?.let {
//code
}
}, 3000)
当前回答
协程 Kotlin
private val SPLASH_SCREEN_TIME_OUT_CONST: Long = 3000
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_splash)
window.setFlags(
WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN
)
GlobalScope.launch {
delay(SPLASH_SCREEN_TIME_OUT_CONST)
goToIntro()
}
}
private fun goToIntro(){
startActivity(Intent(this, IntroActivity::class.java))
finish()
}
其他回答
Handler()和Handler(Handler.)回调回调)构造函数已弃用。因为这可能会导致bug和崩溃。显式使用Executor或Looper。
对于Java
Handler handler = new Handler(Looper.getMainLooper());
handler.postDelayed(new Runnable() {
@Override
public void run() {
//do your work here
}
}, 1000);
协程 Kotlin
private val SPLASH_SCREEN_TIME_OUT_CONST: Long = 3000
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_splash)
window.setFlags(
WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN
)
GlobalScope.launch {
delay(SPLASH_SCREEN_TIME_OUT_CONST)
goToIntro()
}
}
private fun goToIntro(){
startActivity(Intent(this, IntroActivity::class.java))
finish()
}
import android.os.Looper
import android.os.Handler
inline fun delay(delay: Long, crossinline completion: () -> Unit) {
Handler(Looper.getMainLooper()).postDelayed({
completion()
}, delay)
}
例子:
delay(1000) {
view.refreshButton.visibility = View.GONE
}
对于Xamarin Android,而不是
Handler handler;
handler = new Handler();
只写
Handler handler;
handler = new Handler(Looper.MyLooper());
其余的代码都很好。
使用这个
Looper.myLooper()?.let {
Handler(it).postDelayed({
//Your Code
},2500)
}