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Monday, July 23, 2012

How to use SeekBar in ANDROID?

Here is a simple example to show how to use seek Bar in android.
Create a new project and place this code in it.
package com.coderzheaven;
 
<span class="IL_AD" id="IL_AD3">import</span> android.app.Activity;
import android.os.Bundle;
import android.widget.SeekBar;
import android.widget.TextView;
 
public <span class="IL_AD" id="IL_AD4">class</span> SeekBarDemo extends Activity  implements SeekBar.OnSeekBarChangeListener {
    SeekBar mSeekBar;
    TextView mProgressText;
    TextView mTrackingText;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        setContentView(R.layout.main);
 
        mSeekBar = (SeekBar)findViewById(R.id.<span class="IL_AD" id="IL_AD5">seek</span>);
        mSeekBar.setOnSeekBarChangeListener(this);
        mProgressText = (TextView)findViewById(R.id.progress);
        mTrackingText = (TextView)findViewById(R.id.<span class="IL_AD" id="IL_AD1">tracking</span>);
    }
 
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) {
        mProgressText.setText(progress + " " +
                getString(R.<span class="IL_AD" id="IL_AD9">string</span>.seekbar_from_touch) + "=" + fromTouch);
    }
 
    public void onStartTrackingTouch(SeekBar seekBar) {
        mTrackingText.setText(getString(R.string.seekbar_tracking_on));
    }
 
    public void onStopTrackingTouch(SeekBar seekBar) {
        mTrackingText.setText(getString(R.string.seekbar_tracking_off));
    }
}
The main.xml file
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:<span class="IL_AD" id="IL_AD6">orientation</span>="<span class="IL_AD" id="IL_AD7">vertical</span>"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
 
    <SeekBar android:id="@+id/seek"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:max="100"
        android:progress="50"
        android:secondaryProgress="75" />
 
    <TextView android:id="@+id/progress"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />
 
    <TextView android:id="@+id/tracking"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />
</LinearLayout>
The strings.xml file.
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<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">SeekBarDemo</string>
    <string name="seekbar_tracking_on">Tracking on</string>
    <string name="seekbar_tracking_off">Tracking off</string>
    <string name="seekbar_from_touch">from touch</string>
</resources>
SeekBar Demo in ANDROID
SeekBar Demo in ANDROID

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