<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:padding="16dp">

 <SeekBar
  android:id="@+id/sb"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:max="100"
  android:progress="0"
  android:progressDrawable="@drawable/seekbar_bg"
  android:thumb="@drawable/thumb"
  android:thumbOffset="0dp" />

 <TextView
  android:id="@+id/tv"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:layout_centerInParent="true"
  android:gravity="center"
  android:text="請(qǐng)按住滑塊，拖動(dòng)到最右邊"
  android:textColor="#888888"
  android:textSize="14dp" />
</RelativeLayout>

<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
 <!--seekBar背景-->
 <item android:id="@android:id/background">
  <!--形狀-->
  <shape android:shape="rectangle">
   <!--大小-->
   <size android:height="29dp" />
   <!--圓角-->
   <corners android:radius="2dp" />
   <!--背景-->
   <solid android:color="#E7EAE9" />
   <!--邊框-->
   <stroke
    android:width="1dp"
    android:color="#C3C5C4" />
  </shape>
 </item>
 <!--seekBar的進(jìn)度條-->
 <item android:id="@android:id/progress">
  <clip>
   <shape>
    <corners android:radius="2dp" />
    <solid android:color="#7AC23C" />
    <stroke
     android:width="1dp"
     android:color="#C3C5C4" />
   </shape>
  </clip>
 </item>
</layer-list>

public class MainActivity extends AppCompatActivity implements SeekBar.OnSeekBarChangeListener {

 private TextView tv;
 private SeekBar seekBar;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  tv = (TextView) findViewById(R.id.tv);
  seekBar = (SeekBar) findViewById(R.id.sb);
  seekBar.setOnSeekBarChangeListener(this);
 }

 /**
  * seekBar進(jìn)度變化時(shí)回調(diào)
  *
  * @param seekBar 
  * @param progress 
  * @param fromUser 
  */
 @Override
 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
  if (seekBar.getProgress() == seekBar.getMax()) {
   tv.setVisibility(View.VISIBLE);
   tv.setTextColor(Color.WHITE);
   tv.setText("完成驗(yàn)證");
  } else {
   tv.setVisibility(View.INVISIBLE);
  }
 }

 /**
  * seekBar開(kāi)始觸摸時(shí)回調(diào)
  *
  * @param seekBar
  */
 @Override
 public void onStartTrackingTouch(SeekBar seekBar) {

 }

 /**
  * seekBar停止觸摸時(shí)回調(diào)
  *
  * @param seekBar
  */
 @Override
 public void onStopTrackingTouch(SeekBar seekBar) {
  if (seekBar.getProgress() != seekBar.getMax()) {
   seekBar.setProgress(0);
   tv.setVisibility(View.VISIBLE);
   tv.setTextColor(Color.GRAY);
   tv.setText("請(qǐng)按住滑塊，拖動(dòng)到最右邊");
  }
 }
}