SeekBar拖動條控制項，seekbar拖動

SeekBar拖動條控制項，seekbar拖動
SeekBar拖動條控制項

一、簡介

1、

 

 

二、SeekBar拖動條控制項使用方法

1、建立SeekBar控制項

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

 

2、添加setOnSeekBarChangeListener監聽

seekBar2.setOnSeekBarChangeListener(this);

 

三、代碼執行個體

1、：

 

2、代碼

fry.Activity01

 1 package fry; 2  3 import com.example.SeekBarDemo1.R; 4  5 import android.app.Activity; 6 import android.os.Bundle; 7 import android.widget.SeekBar; 8 import android.widget.SeekBar.OnSeekBarChangeListener; 9 import android.widget.TextView;10 import android.widget.Toast;11 12 public class Activity01 extends Activity implements OnSeekBarChangeListener{13     private TextView textView1;14     private TextView textView2;15     private SeekBar seekBar1;16     private SeekBar seekBar2;17     @Override18     protected void onCreate(Bundle savedInstanceState) {19         // TODO Auto-generated method stub20         super.onCreate(savedInstanceState);21         setContentView(R.layout.activity01);22         textView1=(TextView) findViewById(R.id.TextView1_seekBar);23         textView2=(TextView) findViewById(R.id.TextView2_seekBar);24         seekBar1=(SeekBar) findViewById(R.id.SeekBar1);25         seekBar2=(SeekBar) findViewById(R.id.SeekBar2);26         seekBar1.setOnSeekBarChangeListener(this);27         seekBar2.setOnSeekBarChangeListener(this);28     }29     /*30      * onProgressChanged：進度條改變事件31      * onStartTrackingTouch：進度條開始拖動事件32      * onStopTrackingTouch：進度條停止拖動事件33      * (non-Javadoc)34      * @see android.widget.SeekBar.OnSeekBarChangeListener#onProgressChanged(android.widget.SeekBar, int, boolean)35      */36     @Override37     public void onProgressChanged(SeekBar seekBar, int progress,38             boolean fromUser) {39         // TODO Auto-generated method stub40         if(seekBar1.getId()==R.id.SeekBar1){41             Toast.makeText(this, "1111111", Toast.LENGTH_SHORT).show();42             textView1.setText("seekBar1當前位置："+progress);43         }else{44             textView2.setText("seekBar2當前位置："+progress);45         }46     }47     @Override48     public void onStartTrackingTouch(SeekBar seekBar) {49         // TODO Auto-generated method stub50         if(seekBar1.getId()==R.id.SeekBar1){51             textView1.setText("seekBar1開始拖動");52         }else{53             textView2.setText("seekBar2開始拖動：");54         }55     }56     @Override57     public void onStopTrackingTouch(SeekBar seekBar) {58         // TODO Auto-generated method stub59         if(seekBar1.getId()==R.id.SeekBar1){60             textView1.setText("seekBar1停止拖動");61         }else{62             textView2.setText("seekBar2停止拖動：");63         }64     }65 }

/SeekBarDemo1/res/layout/activity01.xml

 1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3     android:layout_width="match_parent" 4     android:layout_height="match_parent" 5     android:orientation="vertical" > 6  7     <TextView  8         android:id="@+id/TextView1_seekBar" 9         android:layout_width="fill_parent"10         android:layout_height="wrap_content"11         android:text="TextView1"12         />13      <TextView 14         android:id="@+id/TextView2_seekBar"15         android:layout_width="fill_parent"16         android:layout_height="wrap_content"17         android:text="TextView2"18         />19      20      <SeekBar 21          android:id="@+id/SeekBar1"22          android:layout_width="match_parent"23          android:layout_height="wrap_content"24          android:progress="30"25          />26      27      <SeekBar 28          android:id="@+id/SeekBar2"29          android:layout_width="match_parent"30          android:layout_height="wrap_content"31          android:progress="60"32          />33 34 35 36 </LinearLayout>

 

 

四、獲得

 1、設定初始進度條

android:progress="30"

2、設定setOnSeekBarChangeListener監聽

seekBar1.setOnSeekBarChangeListener(this);

3、onProgressChanged：進度條改變事件

4、onStartTrackingTouch：進度條開始拖動事件

5、onStopTrackingTouch：進度條停止拖動事件