一、要新建一個工具類 LoadView

import android.app.ProgressDialog;
import android.content.Context;

public class LoadView {
/**
* 載入框
*/
private ProgressDialog progressDialog;
public void buildProgressDialog(String values, Context context) {

    if (progressDialog == null) {
        progressDialog = new ProgressDialog(context);
        progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
    }
    progressDialog.setMessage(values);
    progressDialog.setCanceledOnTouchOutside(false);
    progressDialog.show();
}
/**
 *取消載入框
 */
public void cancelProgressDialog() {
    if (progressDialog != null)
        if (progressDialog.isShowing()) {
            progressDialog.dismiss();
        }
}
 

}

二、在方法中呼叫

LoadView loadView = new LoadView();
loadView. buildProgressDialog(“載入中…..”,MainActivity.this);//第一個引數是要顯示的資訊第二個引數是要顯示在的頁面
loadView.cancelProgressDialog();//取消載入框，放在合適的位置即可