AndroidでProgressDialog

ProgressDialog_sample.java

public class ProgressDialog_sample extends AppCompatActivity implements Runnable{
    //ProgressDialogを定義
    private ProgressDialog mProgressDialog;
    private Thread thread;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        //ProgressDialogの設定
        mProgressDialog = new ProgressDialog(this);
        mProgressDialog.setTitle("Bluetooth有効化");
        mProgressDialog.setMessage("Loading now...");
        mProgressDialog.setCancelable(false);
        mProgressDialog.setProgress(ProgressDialog.STYLE_SPINNER);
        mProgressDialog.show();
        thread = new Thread(this);
        thread.start(); //ProgresDialogの開始
    }


    @Override
    public void run() {
        //プログレスダイアログからの実行

        //とりあえず2秒待つ
         try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        mProgressDialog.dismiss(); //ProgresDialogの停止
    }

}