Elevation Number Of Overlapped View

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This lawsuit exhibit how elevation lawsuit of overlapped view.

package com.blogspot.android_er.androidzelevation;  import android.os.Build; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.ImageView; import android.widget.SeekBar; import android.widget.TextView;  world degree MainActivity extends AppCompatActivity {      SeekBar seekBarZ1, seekBarZ2;     ImageView image1;     TextView text2;      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          seekBarZ1 = (SeekBar)findViewById(R.id.z1);         seekBarZ2 = (SeekBar)findViewById(R.id.z2);         image1 = (ImageView)findViewById(R.id.image1);         text2 = (TextView)findViewById(R.id.text2);          seekBarZ1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {             @Override             world void onProgressChanged(SeekBar seekBar, int i, boolean b) {                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {                     image1.setZ(i);                 }             }              @Override             world void onStartTrackingTouch(SeekBar seekBar) {}              @Override             world void onStopTrackingTouch(SeekBar seekBar) {}         });          seekBarZ2.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {             @Override             world void onProgressChanged(SeekBar seekBar, int i, boolean b) {                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {                     text2.setZ(i);                     text2.setText("elevation: " + String.valueOf(i) + "px");                 }             }              @Override             world void onStartTrackingTouch(SeekBar seekBar) {}              @Override             world void onStopTrackingTouch(SeekBar seekBar) {}         });     } }  

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="16dp"     android:orientation="vertical"     tools:context="com.blogspot.android_er.androidzelevation.MainActivity">      <TextView         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_margin="20dp"         android:layout_gravity="center_horizontal"         android:autoLink="web"         android:text="https://rootandroid.org//"         android:textStyle="bold"/>      <SeekBar         android:id="@+id/z1"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:progress="10"         android:max="50"/>     <SeekBar         android:id="@+id/z2"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:progress="5"         android:max="50"/>      <FrameLayout         android:layout_width="match_parent"         android:layout_height="match_parent">         <ImageView             android:id="@+id/image1"             android:layout_width="200dp"             android:layout_height="200dp"             android:elevation="10px"             android:background="#90F0F0F0"             android:src="@mipmap/ic_launcher"/>         <TextView             android:id="@+id/text2"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:elevation="5px"             android:textSize="40dp"             android:background="#90F0F0F0"             android:text="elevation: 5px"/>     </FrameLayout>  </LinearLayout>