Android学习第六天---seekbar

主xml文件

<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"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

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

    <RatingBar
        android:id="@+id/ratingBar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>

 

java文件中

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

public class MainActivity extends Activity implements OnSeekBarChangeListener,OnRatingBarChangeListener{

    private SeekBar seekBar = null;
    private RatingBar ratingBar = null;
    private static final String TAG="info";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        seekBar = (SeekBar) findViewById(R.id.seekBar1);
        ratingBar = (RatingBar) findViewById(R.id.ratingBar1);

        seekBar.setOnSeekBarChangeListener(this);
        ratingBar.setOnRatingBarChangeListener(this);
        
    }

    @Override
    public void onProgressChanged(SeekBar seekBar, int progress,
            boolean fromUser) {
        Log.i(TAG, ""+progress);
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        Log.i(TAG, ""+"StartTrackingTouch");
    }

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        Log.i(TAG, "StopTrackingTouch");
    }

    @Override
    public void onRatingChanged(RatingBar arg0, float arg1, boolean arg2) {
        Log.i(TAG, arg1+"");
    }

}