Android --SeekBar的使用

浏览数：33 / 时间：2015年06月11日

1. 效果图

2. 源码文件

1.  main.xml

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

    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="EditText" >
    </EditText>

    <SeekBar
        android:id="@+id/seekBar1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </SeekBar>

</LinearLayout>

2. firstActivity.java

package iflab.test;

import android.app.Activity;
import android.content.res.Resources;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.view.View.OnLongClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;

public class firstActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        SeekBar mSeekBar=(SeekBar)findViewById(R.id.seekBar1);            //获取滑块对象
        final EditText mEditText=(EditText)findViewById(R.id.editText1);        //获取编辑框对象

        mSeekBar.setMax(200);                                        //设置滑块最大值
        mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
                                                                //设置监听器
            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                // TODO Auto-generated method stub
                Toast.makeText(getApplicationContext(),"停止更改",Toast.LENGTH_LONG).show();                                                                        //显示信息
            }
            
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                // TODO Auto-generated method stub
                Toast.makeText(getApplicationContext(),"开始更改",Toast.LENGTH_LONG).show();                                                                        //显示信息
            }
            
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                // TODO Auto-generated method stub
                mEditText.setText("滑块的当前值为"+progress);            //显示当前值
            }
        });



    }
}