在android中实现Simple SeekBar

Question

Filters.java

public class Filters extends Activity implements OnSeekBarChangeListener{
    private SeekBar PRICEbar,DISTANCEbar, RATINGbar; // declare seekbar object variable
    // declare text label objects
    private TextView PRICEtextProgress,DISTANCEtextProgress, RATINGtextProgress;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        // load the layout
        setContentView(R.layout.filters);     
        PRICEbar = (SeekBar)findViewById(R.id.PRICEseekBarID); // make seekbar object
        PRICEbar.setOnSeekBarChangeListener(this); 
        PRICEbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

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

            }

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

            }

            @Override
            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                // TODO Auto-generated method stub
                PRICEtextProgress = (TextView)findViewById(R.id.PRICEtextViewProgressID);
                PRICEtextProgress.setText("Price:: Rs "+progress);

            }
        });

}
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        if (seekBar == PRICEbar)
            PRICEtextProgress.setText("Price:: Rs "+progress);
    }
    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        // TODO Auto-generated method stub

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

    }



}

filters.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <RelativeLayout
        android:id="@+id/relativeLayoutforPRICE"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/PRICEtextViewProgressID"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:text="Price"
            android:textAppearance="?android:attr/textAppearanceLarge" >
        </TextView>

        <SeekBar
            android:id="@+id/PRICEseekBarID"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/textView1"
            android:layout_marginTop="26dp"            
            android:max="100" >
        </SeekBar>
    </RelativeLayout>
</LinearLayout>

---

我有这样的输出::

如何修改我的代码以在搜索栏中获取初始值和最终值,如下图所示

谢谢 !

Answer 1

您已经定义了搜索栏的最大值

android:max="100"

现在,您需要在搜索栏的左侧和右侧添加两个文本视图.使用相对布局并将文本视图左和右对齐到父级.

Answer 2

Brontok提示解决了我的问题...我也想分享答案...只需更改xml

<RelativeLayout
        android:id="@+id/relativeLayoutforPRICE"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/PRICEtextViewProgressID"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:text="Price"
            android:textAppearance="?android:attr/textAppearanceLarge" >
        </TextView>

        <SeekBar
            android:id="@+id/PRICEseekBarID"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/textView1"
            android:layout_marginTop="26dp"
            android:max="100" >
        </SeekBar>

        <TextView
            android:id="@+id/PRICEinitialvaluetextID"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/PRICEseekBarID"
            android:text="Rs 0" >
        </TextView>

        <TextView
            android:id="@+id/PRICEinitialvaluetextID"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_below="@+id/PRICEseekBarID"
            android:text="Rs 100" />
    </RelativeLayout>