Progress bar of Android-android learning journey)

Progress bar of Android-android learning journey)
ProgressBar Introduction

ProgressBar is a common Ui used to display the progress of complex operations and provide better user response. Use setProgress () incrementProgressBy () to set the progress and display progress to increase or decrease. A positive value indicates an increase, and a negative value indicates a decrease.

ProgressBar Style

ProgressBar

Code example layout code

Subject Code

package peng.liu.testview;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.widget.ProgressBar;public class MainActivity extends Activity {    private int[] data = new int[100];    int hasData = 0;    int status = 0;    ProgressBar bar,bar2;    Handler handler = new Handler(){        @Override        public void handleMessage(Message msg) {            if(msg.what == 0x123){                bar.setProgress(status);                bar2.setProgress(status);            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        bar = (ProgressBar) findViewById(R.id.bar);        bar2 = (ProgressBar) findViewById(R.id.bar2);        new Thread(){            @Override            public void run() {               if(status < 100){                   status = dowork();                   handler.sendEmptyMessage(0x123);               }            }        };    }    public int dowork(){        data[hasData++] = (int) (Math.random()*100);        try{            Thread.sleep(100);        }        catch (Exception e){            e.printStackTrace();        }        return hasData;    }}