android - ProgressDialog旋转圈

我想像这样实现ProgressDialog，而没有其他框架。

但是我得到了这个。我该如何改变？

这是我的ProgressDialog代码。
提前致谢

private ProgressDialog mProgressDialog;
   ............
   mProgressDialog = new ProgressDialog(activity);
   mProgressDialog.setIndeterminate(false);
   mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
   ............
    public class ProgressTask extends AsyncTask <Fragment,Void,Fragment>{
            @Override
            protected void onPreExecute(){
                mProgressDialog.show();
            }

            @Override
            protected Fragment doInBackground(Fragment... arg0) {
                    //my stuff is here
            }

            @Override
            protected void onPostExecute(Fragment result) {
                   mProgressDialog.dismiss();
            }
        }

最佳答案

只需在布局中将ProgressDialog更改为ProgressBar即可:

res / layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
        //Your content here
     </LinearLayout>

        <ProgressBar
            android:id="@+id/progressBar"
            style="?android:attr/progressBarStyleLarge"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:visibility="gone"
            android:indeterminateDrawable="@drawable/progress" >
        </ProgressBar>
</RelativeLayout>

src / yourPackage / YourActivity.java

public class YourActivity extends Activity{

private ProgressBar bar;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.layout);
    bar = (ProgressBar) this.findViewById(R.id.progressBar);
    new ProgressTask().execute();
}
private class ProgressTask extends AsyncTask <Void,Void,Void>{
    @Override
    protected void onPreExecute(){
        bar.setVisibility(View.VISIBLE);
    }

    @Override
    protected Void doInBackground(Void... arg0) {
           //my stuff is here
    }

    @Override
    protected void onPostExecute(Void result) {
          bar.setVisibility(View.GONE);
    }
}
}

drawable / progress.xml 这是我用来更改默认颜色的自定义ProgressBar。

<?xml version="1.0" encoding="utf-8"?>

<!--
    Duration = 1 means that one rotation will be done in 1 second. leave it.
    If you want to speed up the rotation, increase duration value.
    in example 1080 shows three times faster revolution.
    make the value multiply of 360, or the ring animates clunky
-->
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:duration="1"
    android:toDegrees="360" >

    <shape
        android:innerRadiusRatio="3"
        android:shape="ring"
        android:thicknessRatio="8"
        android:useLevel="false" >
        <size
            android:height="48dip"
            android:width="48dip" />

        <gradient
            android:centerColor="@color/color_preloader_center"
            android:centerY="0.50"
            android:endColor="@color/color_preloader_end"
            android:startColor="@color/color_preloader_start"
            android:type="sweep"
            android:useLevel="false" />
    </shape>

</rotate>