seekbar | 易学教程

Animate seekbar progress

阅读更多关于 Animate seekbar progress

问题 I have a screen with 4 seek bars ( As shown in the image below) . If the user moves B,C or D I calculate the average of the three and setProgress of A to the average. That was the easy part . What I would like to do is animate the progress bar A such that it does not jump in one shot (for eg from 25-75 ). What are the recommended ways to animate A? I got a simple animation up but I am calling a TimerTask every 50ms to increment or decrement A by a unit value till I reach the required position

Changing default seekbar color

阅读更多关于 Changing default seekbar color

问题 If anybody knows what i'm doing wrong please let me know. I created an android app and I am trying to change the default color of the seekbar from yellow to any other color. I created an xml file located in all 3 drawables and ran the project but the color of the seekbar still isnt changing color. Below is the code me and a fellow mate from irc have been working on. <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id=

How to use animation to animate seekbar

阅读更多关于 How to use animation to animate seekbar

问题 I am new to android. I am trying to animate the horizontal seekbar but couldn't do so far. I just want an animation where seekbar shows the progress in some duration say 1 min. Can somebody suggest/give ideas/code snippet on how shall I animate the standard seekbar? What kind of animation like objectanimator or valueAnimation shall I use? Do I need to define a run method (Not sure! ) to animate the thumb to go next position? Thanks in advance. 回答1: One way of doing it is by using a

Android: How to eliminate spoken text from AccessibilityEvents when extending SeekBar?

阅读更多关于 Android: How to eliminate spoken text from AccessibilityEvents when extending SeekBar?

问题 My Android app contains a custom slider control based on the SeekBar , and I want to attach a custom text phrase to my control to explain its use for Accessibility. I have done this successfully using View.setContentDescription(text) , and TalkBack correctly speaks the phrase when I request focus on my slider control from Activity.onCreate . So far, so good. However, when I touch the control, which I believe sets the AccessibilityFocus on my Android API 16 test device, extra words are being

Android: How to eliminate spoken text from AccessibilityEvents when extending SeekBar?

阅读更多关于 Android: How to eliminate spoken text from AccessibilityEvents when extending SeekBar?

How do I cancel a “drag” motion on an Android Seekbar?

阅读更多关于 How do I cancel a “drag” motion on an Android Seekbar?

问题 I've been reading through the docs, and I cannot figure out how to cancel a "drag" on a Seekbar once the bar has been completed. For example, when I drag the bar to the end, I want an event to happen. However, if I keep my finger on the screen and drag my finger past the SeekBar, it keeps firing off that event even after I reset the progress of the Seekbar. How can I prevent this action from happening? Thanks 回答1: Try this..it works fine.. mSeekBar.setEnabled(false); 回答2: seekBarObj

SeekBar Thumb position issue

阅读更多关于 SeekBar Thumb position issue

问题 I'm trying to do a "labeled" thumb for my Seekbar. The objective is to customize a text above the thumb every time the Seekbar position changes. I'm doing this: ... seekBar = (SeekBar) findViewById(R.id.bet_seek_bar); seekBar.setMax(10); setSeekBarLabel("0"); seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { @Override public void onStopTrackingTouch(SeekBar seekBar) { } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void

How to customize the look of a SeekBar in Android?

阅读更多关于 How to customize the look of a SeekBar in Android?

问题 I use a SeekBar in my application and I would like to customize it a little bit. I already figured out how to change the Drawable for the thumb and for the background. My question is how to change the size of the SeekBar ? If I just change the height of the SeekBar like this, the View is only clipped and it only shows the top piece of the SeekBar`: <SeekBar android:layout_height="10dip" style="@style/seekbar_style" /> How do I change the overall size of the Seekbar ? I want it to be much

How to make a color gradient in a SeekBar?

阅读更多关于 How to make a color gradient in a SeekBar?

问题 I want to use a SeekBar (i.e. old school Java Slider) into a color gradient picker. I have seen some examples like this but they all require making new classes and such. There has got to be a way to modify or override the original classes. Or just replace the background with a gradient. 回答1: I figured it out here is how you do it. You create a standard seekbar in your XML. <SeekBar android:id="@+id/seekbar_font" android:layout_width="fill_parent" android:layout_height="wrap_content" android

音乐播放器

阅读更多关于音乐播放器

package com.bwie.day13_music_1; import java.util.Timer; import java.util.TimerTask; import android.app.Activity; import android.media.MediaPlayer; import android.media.MediaPlayer.OnSeekCompleteListener; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ListView; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; public class MainActivity extends Activity { private int idd; private