是否可以創建Seekbar Widgets？

Question

是否有可能爲Android創建一個Seekbar小部件，我該如何創建它？我試圖在網上找到一些關於它的信息，但我找不到任何東西。 提前感謝您的回答！

Answer 1

試試這個，

activity_main.xml中

<RelativeLayout 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" 
     > 

     <SeekBar 
      android:id="@+id/seekBar1" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_alignParentTop="true" 
      android:layout_centerHorizontal="true" 
      android:layout_marginTop="39dp" /> 

    </RelativeLayout> 

MainActivity.java

public class MainActivity extends Activity implements OnSeekBarChangeListener{ 
     SeekBar seekBar1; 
     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.activity_main); 

      seekBar1=(SeekBar)findViewById(R.id.seekBar1); 
      seekBar1.setOnSeekBarChangeListener(this); 
     } 
     @Override 
     public void onProgressChanged(SeekBar seekBar, int progress, 
       boolean fromUser) { 
      Toast.makeText(getApplicationContext(),"seekbar progress: "+progress, Toast.LENGTH_SHORT).show(); 
     } 
     @Override 
     public void onStartTrackingTouch(SeekBar seekBar) { 
      Toast.makeText(getApplicationContext(),"seekbar touch started!", Toast.LENGTH_SHORT).show(); 
     } 
     @Override 
     public void onStopTrackingTouch(SeekBar seekBar) { 
      Toast.makeText(getApplicationContext(),"seekbar touch stopped!", Toast.LENGTH_SHORT).show(); 
     } 
    }