进度条

package com.hanqi.zuoyee;

import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class kaobeiActivity extends AppCompatActivity {
    Button  b1,b2,b3;
            int x=0;
    Handler h=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            if (msg.what == 1) {
                x++;
                if (x == 100) {
                    h.removeMessages(1);
                    return;
                }

            }

        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_kaobei);
        b1=(Button)findViewById(R.id.bb);
        b2=(Button)findViewById(R.id.bb2);
    }
    public void bt1(View v){
        final ProgressDialog pd=new ProgressDialog(this);
        pd.setTitle("正在拷贝");
        pd.setMessage("当前进度");
        pd.setCancelable(false);
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        pd.show();
       new Thread(){
           @Override
           public void run() {
               for(int i=0;i<101;i++){
                   try {
                       Thread.sleep(100);
                   }catch (Exception e){

                   };
                   pd.setProgress(i);
                   if(i==100){
                       runOnUiThread(new Runnable() {
                           @Override
                           public void run() {
                               pd.setMessage("已完成");
                               pd.setMessage(null);
                               Toast.makeText(kaobeiActivity.this, "正在保存", Toast.LENGTH_SHORT).show();

                               try {
                                   Thread.sleep(1000);
                               }catch (Exception e){

                               };

                           }
                       });
                   }
                   if(pd.getProgress()==100){
                       pd.dismiss();
                   }
               }
           }
       }.start();

    }
    public void bt2(View v){
       final ProgressDialog pd=new ProgressDialog(this);
        pd.setTitle("正在拷贝");
        pd.setMessage("当前进度");
        pd.setCancelable(false);
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        pd.show();
        Message m=Message.obtain();
        //m.what=1;
        h.sendEmptyMessage(1);
        new  Thread(){
            @Override
            public void run() {
                super.run();
                for (int i=0;i<101;i++){
                    try {
                        Thread.sleep(100);
                    }catch (Exception e){

                    };
                    h.sendEmptyMessage(1);

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        pd.setProgress(x);
                        if(pd.getProgress()==100){
                            try {
                                Thread.sleep(1000);
                            }catch (Exception e){

                            };
                            pd.dismiss();
                        }
                    }
                });}
            }
        }.start();

    }

}