設置自定義圓角scrollbarThrtVertical scrollbarTrackVertical android

Question

以下三個xml文件是我的自定義滾動條。我想在scroll.xml外面設置seek_bar_thumboutsite.xml。

style.xml

<style name="scroll"> 
     <item name="android:scrollbarThumbVertical">@drawable/seek_bar_thumb</item> 
     <item name="android:scrollbarTrackVertical">@drawable/scroll</item> 
     <item name="android:scrollbarThumbHorizontal">@drawable/scrollbar_handle</item> 
     <item name="android:scrollbarTrackHorizontal">@drawable/scrollbar_track</item> 
     <item name="android:scrollbarFadeDuration">0</item> 
     <item name="android:scrollbarAlwaysDrawVerticalTrack">true</item> 

    </style> 


**scroll.xml** 

<?xml version="1.0" encoding="UTF-8"?> 
<shape xmlns:android="http://schemas.android.com/apk/res/android"> 
<solid android:color="#E3E3E3"/>  
<stroke android:width="1dp" 
     android:color="#E3E3E3" /><!-- #330000FF #ffffffff --> 
<gradient        
    android:startColor="#E3E3E3" 
    android:endColor="#E3E3E3" 
    android:angle="90"/> 

<padding android:left="5dp" 
     android:top="5dp" 
     android:right="5dp" 
     android:bottom="5dp"/> 
<corners android:bottomRightRadius="7dp"  
     android:bottomLeftRadius="7dp" 
     android:topLeftRadius="7dp" 
     android:topRightRadius="7dp"/> 
</shape> 


**seek_bar_thumb** 

<?xml version="1.0" encoding="UTF-8"?> 
<!-- @author : @alexduhem 
     blog.sakaroz.com 
--> 
<shape 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:shape="oval"> 
    <size 
     android:width="25dip" 
     android:height="25dip" /> 
    <stroke 
     android:width="1dip" 
     android:color="#ff5da8d4" /> 
    <gradient 
     android:startColor="#ff0e75af" 
     android:endColor="#ff1997e1" 
     android:angle="270" 
     android:type="linear" /> 
</shape> 

我想拇指看起來像下面的進度條隨機輪scrollthumbvertical。唯一的區別是，滾動滑塊應垂直

Answer 1

這個問題的解決是如下：

你的main.xml XML就會像下面

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <android.widget.VerticalSeekBar android:id="@+id/vertical_Seekbar" 
    android:layout_width="wrap_content" 
    android:layout_height="150dip" /> 

    <TextView android:id="@+id/vertical_sb_progresstext" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:gravity="center"/> 


</LinearLayout> 

現在創建一個新的包在你的項目的src並保留此文件

VerticalSeekBar.java

package android.widget; 

import android.content.Context; 
import android.graphics.Canvas; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.view.MotionEvent; 

public class VerticalSeekBar extends SeekBar { 

    public VerticalSeekBar(Context context) { 
     super(context); 
    } 

    public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) { 
     super(context, attrs, defStyle); 
    } 

    public VerticalSeekBar(Context context, AttributeSet attrs) { 
     super(context, attrs); 
    } 

    protected void onSizeChanged(int w, int h, int oldw, int oldh) { 
     super.onSizeChanged(h, w, oldh, oldw); 
    } 

    @Override 
    protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 
     super.onMeasure(heightMeasureSpec, widthMeasureSpec); 
     setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth()); 
    } 

    protected void onDraw(Canvas c) { 
     c.rotate(-90); 
     c.translate(-getHeight(),0); 

     super.onDraw(c); 
    } 

    @Override 
    public boolean onTouchEvent(MotionEvent event) { 
     if (!isEnabled()) { 
      return false; 
     } 

     switch (event.getAction()) { 
      case MotionEvent.ACTION_DOWN: 
      case MotionEvent.ACTION_MOVE: 
      case MotionEvent.ACTION_UP: 
       int i=0; 
       i=getMax() - (int) (getMax() * event.getY()/getHeight()); 
       setProgress(i); 
       Log.i("Progress",getProgress()+""); 
       onSizeChanged(getWidth(), getHeight(), 0, 0); 
       break; 

      case MotionEvent.ACTION_CANCEL: 
       break; 
     } 
     return true; 
    } 

} 

的發射活動的.java文件將具有代碼如下

SampleActivity.java

package com.sample; 

import android.app.Activity; 
import android.os.Bundle; 
import android.widget.SeekBar; 
import android.widget.SeekBar.OnSeekBarChangeListener; 
import android.widget.TextView; 
import android.widget.VerticalSeekBar; 

public class SampleActivity extends Activity { 

    VerticalSeekBar verticalSeekBar=null; 
    TextView vsProgress=null; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     verticalSeekBar=(VerticalSeekBar)findViewById(R.id.vertical_Seekbar); 
     vsProgress=(TextView)findViewById(R.id.vertical_sb_progresstext); 


     verticalSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { 


      public void onStopTrackingTouch(SeekBar seekBar) { 

      } 


      public void onStartTrackingTouch(SeekBar seekBar) { 
      } 

      public void onProgressChanged(SeekBar seekBar, int progress, 
        boolean fromUser) { 
       vsProgress.setText(progress+""); 

      } 
     }); 
     } 
} 

這是肯定會爲你工作的代碼。爲我工作得很好。如果您仍有疑問，請隨時詢問。