自定义progressbar

<ProgressBar
android:id="@+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@android:color/transparent"
android:indeterminateDrawable="@drawable/progressbar" />

<?xml version="1.0" encoding="utf-8"?>
<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="0"
android:pivotX="50%"
android:pivotY="50%"
android:toDegrees="360" >

<shape
android:innerRadiusRatio="3"
android:shape="ring"
android:thicknessRatio="8"
android:useLevel="false" >
<gradient
android:centerColor="@color/title_color"
android:centerY="0.50"
android:endColor="@color/title_color"
android:startColor="@color/transparent"
android:type="sweep"
android:useLevel="false" />
</shape>

</animated-rotate>

<style name="Animation.Dialog">
<item name="windowEnterAnimation">@anim/dialog_enter</item>
<item name="windowExitAnimation">@anim/dialog_exit</item>
</style>

<!-- 更多登录等待框的样式 -->
</style>
<style name="loadingDialogStyle" parent="android:Theme.Dialog">
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowFrame">@null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowContentOverlay">@null</item>
<!-- 对话框是否有遮盖 -->
<item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
<item name="android:backgroundDimEnabled">true</item>
</style>

public class ThirdLoginLoadingDialog extends Dialog {
private TextView tv;

public ThirdLoginLoadingDialog(Context context) {
super(context, R.style.loadingDialogStyle);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_thirdlogin_dialog_loading);
tv = (TextView) this.findViewById(R.id.tv);
tv.setText("正在登录...");
LinearLayout linearLayout = (LinearLayout) this
.findViewById(R.id.LinearLayout);
linearLayout.getBackground().setAlpha(0);
}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:gravity="center"
android:orientation="vertical" >

<LinearLayout
android:id="@+id/LinearLayout"
android:layout_width="160dp"
android:layout_height="160dp"
android:background="@drawable/thirdlogin_dialog_bg"
android:gravity="center"
android:orientation="vertical" >

<ProgressBar
android:id="@+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@android:color/transparent"
android:indeterminateDrawable="@drawable/progressbar" />

<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingTop="10dp"
android:textColor="@android:color/white" />
</LinearLayout>

</LinearLayout>

private ThirdLoginLoadingDialog dialog;

dialog = new ThirdLoginLoadingDialog(this);

dialog.setCanceledOnTouchOutside(false);//防止触摸其他地方，程序报错

dialog.show();

dialog.dismiss();