相关代码：activity

import android.widget.ProgressBar;
import android.widget.Toast;

public class mnRegisterActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_mn_register);
    }
    public void myClick(View v){
        EditText nameEdt=findViewById(R.id.password);
        EditText passEdt=findViewById(R.id.username);
       final ProgressBar psbar=findViewById(R.id.progressBar);

        String name=nameEdt.getText().toString();
        String pass=passEdt.getText().toString();
        if(name.equals("")||pass.equals("")){
            Toast.makeText(this,"请输入用户名或密码",Toast.LENGTH_SHORT);
        }else{
            psbar.setVisibility(View.VISIBLE);
            new Thread(){
                public void run(){
                      for(int i=0;i<100;i++){
                          psbar.setProgress(i);
                          try {
                              Thread.sleep(30);
                          } catch (InterruptedException e) {
                              e.printStackTrace();
                          }
                      }
                }
            }.start();
        }


    }
}

相关代码：layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"

    android:gravity="center"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="wrap_content"
        android:text="Sign Up"
        android:layout_marginTop="70dp"
        android:layout_height="wrap_content">
    </TextView>
    <TextView
        android:layout_width="wrap_content"
        android:text="Imooc Imooc Imooc Imooc\nImooc Imooc Imooc"
        android:layout_margin="20dp"
        android:gravity="center_horizontal"
        android:layout_height="wrap_content">

    </TextView>
    <ImageView
        android:layout_width="wrap_content"
        android:src="@mipmap/ic_launcher"
        android:layout_height="wrap_content">

    </ImageView>
    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="match_parent"
        style="?android:attr/progressBarStyleHorizontal"
        android:visibility="invisible"
        android:layout_margin="10dp"
        android:layout_height="wrap_content">
    </ProgressBar>
    <EditText
        android:id="@+id/username"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginTop="10dp"
        android:layout_marginRight="30dp"
        android:hint="请输入用户名"
        android:gravity="center_horizontal">
    </EditText>
    <EditText
        android:id="@+id/password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginTop="10dp"
        android:layout_marginRight="30dp"
        android:hint="请输入密码"
        android:gravity="center_horizontal"
        android:inputType="textPassword">
    </EditText>

    <Button
        android:id="@+id/butn1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginTop="10dp"
        android:layout_marginRight="30dp"
        android:background="#31AC65"
        android:onClick="myClick"
        android:text="register"></Button>


</LinearLayout>

问题描述：点击按钮register以后提示没有生效，只有进度条生效