ProgressDialog 旋转圈

Question

我想像这样实现 ProgressDialog，无需额外的框架。：

但我得到了这个。我怎么能改变呢？

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();
            }
        }

Answer 1

只需将布局中的ProgressDialog 更改为ProgressBar：

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>

Answer 2

把这个XML只显示轮子：

<ProgressBar
    android:indeterminate="true"
    android:id="@+id/marker_progress"
    style="?android:attr/progressBarStyle"
    android:layout_height="50dp" />

Answer 3

我使用的是View.INVISIBLE和View.VISIBLE，ProgressBar会慢慢闪烁而不是一直可见，切换到View.GONE和View.VISIBLE，效果很好

Answer 4

ProgressBar Dialog - 无需一直编写自定义progressBar 代码，创建一个下面的类并使用

public class DProgressbar {
    Dialog progressDialog ;
    public DProgressbar(Context context) {
        progressDialog = new Dialog(context);
        progressDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        progressDialog.setContentView(R.layout.dialog_api_loading);
        progressDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
        progressDialog.setCancelable(false);
    }

    public void show(){
        progressDialog.show();
    }

    public void dismiss(){
        progressDialog.dismiss();
    }

}

R.layout.dialog_api_loading

  <androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:cardCornerRadius="@dimen/size_10">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@color/white"
        android:orientation="horizontal"
        android:padding="20dp">
<ProgressBar
            android:layout_width="@dimen/size_20"
            android:layout_height="@dimen/size_20" />
            <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_marginHorizontal="@dimen/txt_distance_5"
            android:gravity="center"
            android:text="Loading..." />
    </LinearLayout>
</androidx.cardview.widget.CardView>

Answer 5

试试这个…………

ProgressDialog pd1;
pd1=new ProgressDialog(<current context reference here>);
pd1.setMessage("Loading....");
pd1.setCancelable(false);
pd1.show();

解雇....

if(pd1!=null)
 pd1.dismiss();