3.6bar控件

ProcessBar:进度条

SeekBar:拖动条

RatingBar:评分控件

界面:

布局:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.liang.barliang.MainActivity">

    <ProgressBar
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/progressBar"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentEnd="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="download"
        android:id="@+id/button"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true" />

    <SeekBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/seekBar"
        android:layout_below="@+id/progressBar"
        android:layout_alignParentStart="true"
        android:layout_marginTop="52dp"
        android:layout_alignEnd="@+id/progressBar" />

    <RatingBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/ratingBar"
        android:layout_marginTop="52dp"
        android:layout_below="@+id/seekBar"
        android:layout_centerHorizontal="true" />
</RelativeLayout>

程序:

import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.SeekBar;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private final static String TAG = "bar";
    private Button button;
    private ProgressBar progressBar;
    private SeekBar seekBar;
    private RatingBar ratingBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button) this.findViewById(R.id.button);
        progressBar = (ProgressBar) this.findViewById(R.id.progressBar);
        seekBar = (SeekBar) this.findViewById(R.id.seekBar);
        ratingBar = (RatingBar) this.findViewById(R.id.ratingBar);

        progressBar.setMax(100);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new DownloadTask().execute();
            }
        });

        //
        seekBar.setMax(100);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
             //实时变化的回调函数
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
            //开始滚动的回调函数
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                //滚动结束的回调函数
                Toast.makeText(MainActivity.this, "Volume：" + seekBar.getProgress(), Toast.LENGTH_SHORT).show();
            }
        });

        //评分控件
        ratingBar.setNumStars(5);
        ratingBar.setMax(100);
        ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
                Toast.makeText(MainActivity.this, "Stars：" + rating, Toast.LENGTH_SHORT).show();
            }
        });
    }

    //进度控件 下载实时更新
    class DownloadTask extends AsyncTask<Void, Integer, Void> {

        @Override
        protected void onProgressUpdate(Integer... values) {
            super.onProgressUpdate(values);
            progressBar.setProgress(values[0]);
        }

        @Override
        protected Void doInBackground(Void... params) {
            int i = 1;
            while (i <= 100) {
                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                Log.i(TAG, String.valueOf(i));
                publishProgress(i);
                i++;
            }
            return null;
        }
    }
}