Best way to translate this java code into kotlin
Date : March 29 2020, 07:55 AM
To fix the issue you can do Instead of translating the code literally, make use of Kotlin's stdlib which offers a number of useful extension functions. Here's one version val text = URL(urlSpec).openConnection().inputStream.bufferedReader().use { it.readText() }
public fun Reader.copyTo(out: Writer, bufferSize: Int = DEFAULT_BUFFER_SIZE): Long {
var charsCopied: Long = 0
val buffer = CharArray(bufferSize)
var chars = read(buffer)
while (chars >= 0) {
out.write(buffer, 0, chars)
charsCopied += chars
chars = read(buffer)
}
return charsCopied
}
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Android Studio translate code from kotlin to java
Date : March 29 2020, 07:55 AM
This might help you I am new to android studio but have come from learning Java in eclipse through university. I've being following along with a simple tutorial that is coded in kotlin however I wanted to create it in Java (although from what I have learnt kotlin is less repetitive). I want to translate the code below from kotlin to java: , Here you go Button rollButton=findViewById(R.id.rollButton);
TextView resultTexView=findViewById(R.id.resultsTextView);
SeekBar seekBar=findViewById(R.id.seekBar);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int rand = Random().nextInt(seekBar.progress) + 1
resultsTextView.setText(rand.toString());
}
});
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How to translate this piece of code from Java to Kotlin?
Date : March 29 2020, 07:55 AM
should help you out You can use @JvmOverloads and use a default value for your cache, so you do not need a 2nd constructor defined explicitly: class LruBitmapCache @JvmOverloads constructor(
sizeInKiloBytes: Int = defaultLruCacheSize
) : LruCache<String, Bitmap>(sizeInKiloBytes), ImageCache {
protected fun sizeOf(key: String, value: Bitmap): Int = value.rowBytes * value.height / 1024
fun getBitmap(url: String): Bitmap = get(url)
fun putBitmap(url: String, bitmap: Bitmap) {
put(url, bitmap)
}
companion object {
val defaultLruCacheSize: Int
get() {
val maxMemory = (Runtime.getRuntime().maxMemory() / 1024).toInt()
return maxMemory / 8
}
}
}
class LruBitmapCache(
sizeInKiloBytes: Int
) : LruCache<String, Bitmap>(sizeInKiloBytes), ImageCache {
constructor(): this(defaultLruCacheSize)
// omitted for brevity
}
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How to translate code with byte operation from Java to Kotlin?
Date : March 29 2020, 07:55 AM
With these it helps I would like to translate this method in Kotlin but I do not know what are the variables to cast to do things correctly and have the right operations memories : , I finally found the good cast to do for the unit tests to work. fun bytestoUUID(buf: ByteArray, offset: Int): UUID {
var lsb: Long = 0
for (i in 15 downTo 8) {
lsb = lsb shl 8 or (buf[i + offset].toLong() and 0xff)
}
var msb: Long = 0
for (i in 7 downTo 0) {
msb = msb shl 8 or (buf[i + offset].toLong() and 0xff)
}
return UUID(msb, lsb)
}
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How to translate this Android Kotlin code to Java code
Date : March 29 2020, 07:55 AM
hop of those help? I would recommend another way to read kotlin code assuming you are well familiar with java. You can use below option in android studio.
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