SeekBar拖动条控件

SeekBar拖动条控件

一、简介

1、

二、SeekBar拖动条控件使用方法

1、创建SeekBar控件

<SeekBar 
         android:id="@+id/SeekBar1"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:progress="30"
         />

2、添加setOnSeekBarChangeListener监听

seekBar2.setOnSeekBarChangeListener(this);

三、代码实例

1、效果图：

2、代码

fry.Activity01

package fry;

import com.example.SeekBarDemo1.R;

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

public class Activity01 extends Activity implements OnSeekBarChangeListener{
    private TextView textView1;
    private TextView textView2;
    private SeekBar seekBar1;
    private SeekBar seekBar2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity01);
        textView1=(TextView) findViewById(R.id.TextView1_seekBar);
        textView2=(TextView) findViewById(R.id.TextView2_seekBar);
        seekBar1=(SeekBar) findViewById(R.id.SeekBar1);
        seekBar2=(SeekBar) findViewById(R.id.SeekBar2);
        seekBar1.setOnSeekBarChangeListener(this);
        seekBar2.setOnSeekBarChangeListener(this);
    }
    /*
     * onProgressChanged：进度条改变事件
     * onStartTrackingTouch：进度条开始拖动事件
     * onStopTrackingTouch：进度条停止拖动事件
     * (non-Javadoc)
     * @see android.widget.SeekBar.OnSeekBarChangeListener#onProgressChanged(android.widget.SeekBar, int, boolean)
     */
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress,
            boolean fromUser) {
        // TODO Auto-generated method stub
        if(seekBar1.getId()==R.id.SeekBar1){
            Toast.makeText(this, "1111111", Toast.LENGTH_SHORT).show();
            textView1.setText("seekBar1当前位置："+progress);
        }else{
            textView2.setText("seekBar2当前位置："+progress);
        }
    }
    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        // TODO Auto-generated method stub
        if(seekBar1.getId()==R.id.SeekBar1){
            textView1.setText("seekBar1开始拖动");
        }else{
            textView2.setText("seekBar2开始拖动：");
        }
    }
    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        // TODO Auto-generated method stub
        if(seekBar1.getId()==R.id.SeekBar1){
            textView1.setText("seekBar1停止拖动");
        }else{
            textView2.setText("seekBar2停止拖动：");
        }
    }
}

/SeekBarDemo1/res/layout/activity01.xml

<?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" >

    <TextView 
        android:id="@+id/TextView1_seekBar"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="TextView1"
        />
     <TextView 
        android:id="@+id/TextView2_seekBar"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="TextView2"
        />
     
     <SeekBar 
         android:id="@+id/SeekBar1"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:progress="30"
         />
     
     <SeekBar 
         android:id="@+id/SeekBar2"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:progress="60"
         />



</LinearLayout>

四、获得

 1、设置初始进度条

android:progress="30"

2、设置setOnSeekBarChangeListener监听

seekBar1.setOnSeekBarChangeListener(this);

3、onProgressChanged：进度条改变事件

4、onStartTrackingTouch：进度条开始拖动事件

5、onStopTrackingTouch：进度条停止拖动事件