Android之進度框的兩種顯示方法

顯示進度對話框

在程序中調用showDialog的時候，系統會回調函數onCreateDialog，此時可以根據傳遞過來的id進行相應的顯示

如果需要顯示對話框，則需要覆寫onCreateDialog函數，在顯示選項中new一個progressDialog對象，然後返回就可以了

1. @Override
2. protected Dialog onCreateDialog(int id) {
3. switch (id) {
4. case DIALOG1_KEY: { //有標題欄的進度對話框
5. ProgressDialog dialog = new ProgressDialog(this);
6. dialog.setTitle("Indeterminate");
7. dialog.setMessage("Please wait while loading...");
8. dialog.setIndeterminate(true);
9. dialog.setCancelable(true);
10. return dialog;
11. }
12. case DIALOG2_KEY: { //沒有標題欄的進度對話框
13. ProgressDialog dialog = new ProgressDialog(this);
14. dialog.setMessage("Please wait while loading...");
15. dialog.setIndeterminate(true);
16. dialog.setCancelable(true);
17. return dialog;
18. }
19. }
20. return null;
21. }

1. private boolean mToggleIndeterminate = false;
3. @Override
4. protected void onCreate(Bundle savedInstanceState) {
5. super.onCreate(savedInstanceState);
7. // Request progress bar
8. requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
9. setContentView(R.layout.progressbar_4);
10. setProgressBarIndeterminateVisibility(mToggleIndeterminate);
12. Button button = (Button) findViewById(R.id.toggle);
13. button.setOnClickListener(new Button.OnClickListener() {
14. public void onClick(View v) {
15. mToggleIndeterminate = !mToggleIndeterminate;
16. setProgressBarIndeterminateVisibility(mToggleIndeterminate);
17. }
18. });
19. }