seekbar

前言 　　 开发记录博客不是讲解使用博客,更多的是各种功能与点子的记录 基本使用 　　 <SeekBar android:layout_width="match_parent" android:layout_height="wrap_content" 　　　 android:max="200" android:maxHeight="3dp" android:minHeight="3dp" android:progressDrawable="@drawable/seekbar_bg" android:thumb="@drawable/seekbar_thumb_bg"/> android:max ="200" 进度最大值 android:progressDrawable ="@drawable/seekbar_bg" 设置进度条的背景 android:thumb ="@drawable/seekbar_thumb_bg" 设置进度条上圆点的背景 setProgress(int value) 设置滑块的位置 setMax(int value) 设置进度条的最大长度 setOnSeekBarChangeListener(OnSeekBarChangeListener l)这个主要是监听进度改变 里面包含3个回调方法 onProgressChanged进度条变化

今天给大家推荐一个Android垂直型的SeekBar,可能对于你们在项目中有所帮助。这个已经有人具体实现。本人只是在这里稍做推荐。有关更多的好的控件本人在网上已建了一个网站专门做Android开源控件的收录以及示例代码的各种使用用法，目的是帮助更多的Android开发者，让更多的人爱上Android开发者。可以给出具体实现的思想及代码。 按以前写作方式，首先上效果图： 具体实现方式是继续SeekBar,重写onDraw方法只要旋转90度就可以实现。 给出以上两个其中的一个代码： [java] view plain copy print ? 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 extendsSeekBar { public VerticalSeekBar(Context context) { super (context); } public VerticalSeekBar(Context context,

SeekBar：A SeekBar is an extension of ProgressBar that adds a draggable thumb. The user can touch the thumb and drag left or right to set the current progress level or use the arrow keys. Placing focusable widgets to the left or right of a SeekBar is discouraged. 上面是官方的定义。 什么是SeekBar控件,SeekBar控件其实就是一个高级点的进度条，就像我们在听歌，看电影用的播放器上的进度条一样，是可以拖动的，可以改变进度的一个进度条控件！就是下面这个样子： 下面来看如何使用SeekBar，用一个例子来说，功能非常简单，Activity上就是一个SeekBar和一个TextView，当我们拖动SeekBar的进度时，在下面的TextView中显示相应的进度变化！ 第一步：定义Activity 在main.xml文件中加上一个SeekBar和一个TextView <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http:/

I want to create seekbar that is divided into 5 section poor , below Average Average and Excellent , for every step i want increment like this seekbar Default=0 max value = 100; i want seek bar values like this :0,25,50,75,100 how can i achieve this. Thanks You have to just update the onProgressChanged method as follows. int yourStep = 25; public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { progress = ((int)Math.round(progress/yourStep ))*yourStep; seekBar.setProgress(progress); textview.setText(progress + ""); } Hope its help UPD I think in your xml you set

I'm new to android development , I use onProgressChanged to get current progress as progress is a parameter of the function . but I want to get only the final value of progress when user release the seekbar not the Immediate value. Thanks in advance. The onStopTrackTouch method defined in OnSeekBarChangeListener is called when the user stops sliding the SeekBar (i.e., has finished the touch gesture) and provides the "final value". 来源： https://stackoverflow.com/questions/13440965/get-progress-in-onstoptrackingtouch-not-onprogresschanged-in-seekbar

I have prepared a simple test project for my question at GitHub. In my project there is a custom inline SeekBarPreference , which mostly works fine (its summary is updated when seekbar is being dragged and it saves integer value): However there is a problem: On the very 1st run of the app (you might need to uninstall my app when you try see the error again) the progress of the SeekBar is not set (but the summaries are set): My question is: how to fix this issue in my code? I have tried adding mSeekBar.setProgress(mProgress) in different spots of SeekBarPreference.java , but just can't find the

as my pic,the seekbar progress =0,but the seekbar thumb center not at the start point.my code: <SeekBar android:layout_width="match_parent" android:layout_height="wrap_content" android:progressDrawable="@drawable/seekbar_progress" android:thumb="@drawable/seekbarthumb" android:minHeight="10dip" android:maxHeight="10dip" android:thumbOffset="0px" android:max="100" android:id="@+id/bright_seekbar" android:layout_marginLeft="60dip"/> seekbar_progress <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id

I want to have a seekbar(like int the link: YUI Library Examples ) with marks at discrete progress points, but the progress interval is not static. How can I achieve this? You can code up a custom View that draws the vertical lines at whatever points you want. See: http://developer.android.com/guide/topics/ui/custom-components.html You'll just need to override onDraw(Canvas canvas) to draw your lines. You can use proportions of the width of the view as your markers. Each vertical line would be at the point lineNumber * (viewWidth) / numLines from lineNumber = 0 to lineNumber = numLines-1 Your

How can I get current position of thumb in pixel for SeekBar? Currently I am trying to get the position on the bases of calculation. Screen width, Seek Bar width, current seek progress and all. But I am not able to get exact position out of it. Do any one have any idea? Coding for same is as below. I want to drow one component on top of SeekBar thumb. translation = calculateTranslation(this.deviceScreenWidth, seekBarWidth, seekBar1T.getMax(), Integer.valueOf(ConstantData.seekbar_fifth.toString()), topComponentWidth, 0); if (currentapiVersion < android.os.Build.VERSION_CODES.HONEYCOMB){