How to make double seekbar in android?

问题

I am building an android application where the user select the a maximum value by seekbar.

I need another button on the same seekbar so that user can select maximum and minimum value from a particular unique seekbar.

Here is my code of single seek bar -

package com.ui.yogeshblogspot;

public class CustomSeekBarExActivity extends Activity implements OnSeekBarChangeListener{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
 SeekBar bar=(SeekBar)findViewById(R.id.seekBar1);
 bar.setOnSeekBarChangeListener(this);
}

@Override
public void onProgressChanged(SeekBar seekBar, int progress,
        boolean fromUser) {
    // TODO Auto-generated method stub
    TextView tv=(TextView)findViewById(R.id.textView2);
    tv.setText(Integer.toString(progress)+"%");

}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub

}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
    // TODO Auto-generated method stub

}
}

Here is my xml code of seek bar -

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

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Choose Your Progress"
    android:textColor="#000000"
    android:textAppearance="?android:attr/textAppearanceMedium" />

<SeekBar
    android:id="@+id/seekBar1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" 
    android:layout_gravity="center"
    android:progressDrawable="@xml/progress"
    android:max="100"
    android:thumb="@xml/thumb"/>

<TextView
    android:id="@+id/textView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textColor="#000000"
    android:gravity="center"
    android:layout_gravity="center"
    android:paddingTop="10dp"
    android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

回答1:

The Android widget class library has only one slider control, seekbar with only one thumb control. Did some research online and found this cool custom widget, range-seek-bar.

you can followed any one of below

https://github.com/edmodo/range-bar

https://code.google.com/p/range-seek-bar/

https://github.com/Larpon/RangeSeekBar

回答2:

Fully Customize two way and single way seek bar you can provide thumb color etc http://codingsignals.com/crystal-range-seekbar-in-android/

Add in your gradle

dependencies {
compile 'com.crystal:crystalrangeseekbar:1.0.0' 
}

<com.crystal.crystalrangeseekbar.widgets.BubbleThumbRangeSeekbar
android:id="@+id/rangeSeekbar5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:corner_radius="10"
app:min_value="0"
app:max_value="100"
app:steps="5"
app:bar_color="#F7BB88"
app:bar_highlight_color="#E07416"
app:left_thumb_image="@drawable/thumb"
app:right_thumb_image="@drawable/thumb"
app:left_thumb_image_pressed="@drawable/thumb_pressed"
app:right_thumb_image_pressed="@drawable/thumb_pressed"
app:data_type="_integer"/>

回答3:

From Here

        <com.appyvet.rangebar.RangeBar
            xmlns:custom="http://schemas.android.com/apk/res-auto"
            android:id="@+id/SearchrangeSeekbarAge"
            android:layout_width="match_parent"
            android:layout_height="72dp"
            custom:tickStart="18"
            custom:tickInterval="1"
            custom:tickEnd="70" />


        <com.appyvet.rangebar.RangeBar
            xmlns:custom="http://schemas.android.com/apk/res-auto"
            android:id="@+id/SearchrangeSeekbarHeight"
            android:layout_width="match_parent"
            android:layout_height="72dp"
            custom:tickStart="4.5"
            custom:tickInterval="0.10"
            custom:tickEnd="7.0" />


rangebar.setOnRangeBarChangeListener(new RangeBar.OnRangeBarChangeListener() {
        @Override
        public void onRangeChangeListener(RangeBar rangeBar, int leftPinIndex,
                int rightPinIndex,
                String leftPinValue, String rightPinValue) {
        }
    });

回答4:

You do not need to use two seekbar , but you can just do the same function of minimum and maximum by using only one seekbar with having two thumbs over it Here its a library you can use https://code.google.com/p/range-seek-bar/

You can use by using below code

private final Thumb getClosestThumb(float touchX)

{
double xValue = screenToNormalized(touchX);        
return (Math.abs(xValue - normalizedMinValue) < Math.abs(xValue - normalizedMaxValue)) ? Thumb.MIN : Thumb.MAX;
}

And in the "public boolean onTouchEvent(MotionEvent event)",

if(pressedThumb == null),
pressedThumb = getClosestThumb(mDownMotionX);

回答5:

RangeSeekBar https://github.com/RanaRanvijaySingh/RangeSeekBar. Also there are other libraries available which offers a lot of customization. If you want to go for more interactive design then look for Material Range Bar http://android-arsenal.com/details/1/1272.

来源：https://stackoverflow.com/questions/26836534/how-to-make-double-seekbar-in-android

标签

android

customization

seekbar