一起学android之创建简单的ProgressDialog（30）

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效果图：

参看以下代码：

public class ProgressActivity extends Activity implements OnClickListener {// 最大进度private static final int MAX_PROGRESS = 100;// 进度条private ProgressDialog progressDialog;// 当前进度值private int progress = 0;// 控件private Button btn_progress_1;private Button btn_progress_2;private Handler handler = new Handler() {@Overridepublic void handleMessage(Message msg) {super.handleMessage(msg);switch (msg.what) {case 1:if (progress > MAX_PROGRESS) {// 达到最大值progress = 0;progressDialog.dismiss();} else {progress++;// 进度递增1progressDialog.incrementProgressBy(1);handler.sendEmptyMessageDelayed(1,50 + new Random().nextInt(500));}break;default:break;}}};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_progress);initViews();initListeners();}private void initViews() {btn_progress_1 = (Button) findViewById(R.id.btn_progress_1);btn_progress_2 = (Button) findViewById(R.id.btn_progress_2);}private void initListeners() {btn_progress_1.setOnClickListener(this);btn_progress_2.setOnClickListener(this);}/** * 显示对话框 */@SuppressWarnings("deprecation")private void showProgressDialog(int style) {progressDialog = new ProgressDialog(this);progressDialog.setIcon(R.drawable.ic_launcher);progressDialog.setTitle("正在处理数据...");progressDialog.setMessage("请稍后...");// 设置进度对话框的风格progressDialog.setProgressStyle(style);// 设置进度对话框的进度最大值progressDialog.setMax(MAX_PROGRESS);// 设置进度对话框的“暂停”按钮progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "暂停",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {handler.removeMessages(1);}});// 设置进度对话框的“取消”按钮progressDialog.setButton(DialogInterface.BUTTON_NEUTRAL, "取消",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {handler.removeMessages(1);// 重置progress = 0;progressDialog.setProgress(progress);}});progressDialog.show();progress = (progress > 0) ? progress : 0;progressDialog.setProgress(progress);handler.sendEmptyMessage(1);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.btn_progress_1:// 进度对话框showProgressDialog(ProgressDialog.STYLE_HORIZONTAL);break;case R.id.btn_progress_2:// 旋转对话框showProgressDialog(ProgressDialog.STYLE_SPINNER);break;default:break;}}}

转载请注明出处：http://blog.csdn.net/hai_qing_xu_kong/article/details/45024997 情绪控_

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