Android: How to Center title in ToolBar

Question

I am using ToolBar in my project first time, so i do not know how to customized the toolbar in android. I need to centered title in to the tool bar and how to do that please

Answer 1

Based on @LiuWenbin_NO,

I had created a custom toolbar, which didn't need any extra view to center title in textview,

import android.content.Context
import android.util.AttributeSet
import android.widget.TextView
import androidx.appcompat.widget.Toolbar
import android.view.Gravity

class CenteredToolbar(context: Context, attrs: AttributeSet?, defStyleAttr: Int):
Toolbar(context, attrs, defStyleAttr) {

constructor(context: Context) : this(context, null, 0)

constructor(context: Context, attrs: AttributeSet) : this(context, attrs, androidx.appcompat.R.attr.toolbarStyle)

override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {
    super.onLayout(changed, l, t, r, b)

    val childCount = childCount
    for (i in 0 until childCount) {
        val view = this.getChildAt(i)
        if (view is TextView) {
            forceTitleCenter(view,l, r)
            break
        }
    }
}

/**
 * Centering the layout.
 *
 * @param view The view to be centered
 */
private fun forceTitleCenter(view: TextView, l: Int,  r: Int) {
    val top = view.getTop()
    val bottom = view.getBottom()
    view.layout(l, top, r, bottom)
    navigationIcon?.let{
        view.setPadding(it.intrinsicWidth,0,0,0)
    }
    view.gravity = Gravity.CENTER
}

}