Android进度条总结

1.在标题栏显示进度条: 
  requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
  setProgressBarIndeterminateVisibility(true); 

2.style="?android:attr/progressBarStyleLarge" 

3.Activity显示成Dialog样式. 
android:theme="@android:style/Theme.Dialog"