AshuTyagi16

public class LocationManagerService extends ILocationManager.Stub {

    private Receiver getReceiverLocked(ILocationListener listener, int pid, int uid,
                                       String packageName) {
        IBinder binder = listener.asBinder();
        Receiver receiver = mReceivers.get(binder);
        if (receiver == null) {
            receiver = new Receiver(listener, null, pid, uid, packageName);
            mReceivers.put(binder, receiver);
            try {

AshuTyagi16

fun Drawable.updateTint(color: Int) {
    DrawableCompat.wrap(this)?.let {
        DrawableCompat.setTint(it, color)
    }
}

AshuTyagi16

private fun changeDrawableColor(holder: OutgoingChatViewHolder) {
        holder.itemView.post {
            ContextCompat.getDrawable(this, R.drawable.bg_round_corner_outgoing)
                ?.let { incomingBgDrawable ->
                    val color = animatedColor.with(getFloatRange(holder.itemView))
                    incomingBgDrawable.updateTint(color)
                    holder.itemView.tvOutgoingMessage.background = incomingBgDrawable
                }
        }
    }

AshuTyagi16

import android.graphics.Color

class AnimatedColor(private val startColor: Int, private val endColor: Int) {

    private val startHSV: FloatArray
    private val endHSV: FloatArray
    private val move = FloatArray(3)


    init {

AshuTyagi16

private fun getFloatRange(view: View): Float {
    return 1f - (view.absY() / resources.displayMetrics.heightPixels.toFloat())
}

//This function returns the y-cord of the view..
fun View.absY(): Float {
    val location = IntArray(2)
    getLocationOnScreen(location)
    return (location[1].toFloat() - height.toFloat())
}

AshuTyagi16

rvChat.addOnScrollListener(object : RecyclerView.OnScrollListener() {
            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
                super.onScrolled(recyclerView, dx, dy)
                recyclerView.forEachVisibleHolder { holder: RecyclerView.ViewHolder ->
                    if (holder is OutgoingChatViewHolder) {
                        changeDrawableColor(holder)
                    }
                }
            }
        })

AshuTyagi16

@SystemService(Context.POWER_SERVICE)
public final class PowerManager {

    final IPowerManager mService;

    public final class WakeLock {
        @UnsupportedAppUsage
        private int mFlags;
        @UnsupportedAppUsage
        private String mTag;

AshuTyagi16

import android.content.Context
import android.os.Bundle
import android.os.PowerManager
import androidx.appcompat.app.AppCompatActivity

class ExampleActivity : AppCompatActivity() {

    private lateinit var wakeLock: PowerManager.WakeLock

AshuTyagi16

inline fun <reified T : RecyclerView.ViewHolder> RecyclerView.forEachVisibleHolder(
    action: (T) -> Unit
) {
    for (i in 0 until childCount) {
        action(getChildViewHolder(getChildAt(i)) as T)
    }
}

AshuTyagi16

rvApps.addOnScrollListener(object : RecyclerView.OnScrollListener() {
            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) { 
                recyclerView.forEachVisibleHolder { holder: AppViewHolder ->
                    holder.rotation
                        // Update the velocity.
                        // The velocity is calculated by the vertical scroll offset.
                        .setStartVelocity(holder.currentVelocity - dx * SCROLL_ROTATION_MAGNITUDE)
                        // Start the animation. This does nothing if the animation is already running.
                        .start()
                }