import android.app.Activity; import android.app.ProgressDialog; import android.os.Bundle; public class MyActivityTest extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final ProgressDialog progressDialog = new ProgressDialog(this); progressDialog.setTitle("提示"); progressDialog.setMessage("正在加载...."); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setMax(100); progressDialog.show(); new Thread(new Runnable() { @Override public void run() { for (int i = 1; i <= 100; i++) { progressDialog.setProgress(i); try { Thread.sleep(20); } catch (InterruptedException e) { e.printStackTrace(); } } progressDialog.dismiss(); } }).start(); } }