做项目的时候，直接用到了一个ProgressDialog，需要实现全屏的效果，如下图所示，功能跑起来的时候发现不是全屏，只是包裹了当前的内容，如下图所示，不过查找一些资料，把问题解决了。

本文的知识点：

1、实现ProgressDialog的全屏效果
2、接口回调推荐的方式

项目要求实现的效果.png

刚开始实现的效果.png

代码实现：

1、布局

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

    <com.tecsun.tsb.network.tool.AnimImageViewLoader
        android:id="@+id/iv_load_anim"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/anim_all_load"/>

    <TextView
        android:id="@+id/tv_all_load"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/tip_load_pay_wait_result"
        android:textSize="26sp"
        android:textColor="@color/c_white"
        android:layout_marginTop="20dp"/>

    <TextView
        android:id="@+id/tv_all_load_other"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/tip_load_pay_wait_tip"
        android:textSize="26sp"
        android:textColor="@color/c_orange_1"
        android:layout_marginTop="20dp"/>


    <Button
        android:id="@+id/btn_cancel"
        android:layout_height="75dp"
        android:layout_width="600dp"
        android:layout_marginTop="20dp"
        android:text="取消查询"
        android:background="@drawable/btn_white_gray7_selector"
        android:textColor="#000000"
        android:textSize="30sp" />

</LinearLayout>

2、核心代码

 Window window = getWindow();
        WindowManager.LayoutParams layoutParams = window.getAttributes();
        layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
        layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
        layoutParams.gravity = gravity;
        window.setAttributes(layoutParams);

3、接口回调的实现方式

    public OnClickCancelListener mOnClickCancelListener;

    public void setOnClickCancelListener(OnClickCancelListener onClickCancelListener){
        this.mOnClickCancelListener = onClickCancelListener;
    }

    public interface OnClickCancelListener{
        void singleClick();
    }

4、接口回调的调用方式

mLoadingProgressDialog.setOnClickCancelListener(new LoadingProgressDialog.OnClickCancelListener() {

           @Override
           public void singleClick() {
               LogUtil.d(TAG,"点击取消查询===========");
               isContinueQuery =  true;
               dismissPayResultLoadingDialog();
           }
       });

5、全部代码实现

public class LoadingProgressDialog extends ProgressDialog {

    private static final String TAG = LoadingProgressDialog.class.getSimpleName();

    public LoadingProgressDialog(Context context) {
        super(context,R.style.style_custon_dialog);
        setCancelable(false);
        setCanceledOnTouchOutside(false);
    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.custom_dialog_all_loading);
        Window window = getWindow();
        WindowManager.LayoutParams layoutParams = window.getAttributes();
        layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
        layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
        layoutParams.gravity = gravity;
        window.setAttributes(layoutParams);
        Button benCancel = (Button) findViewById(R.id.btn_cancel);
        benCancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LogUtil.d(TAG,"benCancel================");
                mOnClickCancelListener.singleClick();
            }
        });
    }

    public OnClickCancelListener mOnClickCancelListener;

    public void setOnClickCancelListener(OnClickCancelListener onClickCancelListener){
        this.mOnClickCancelListener = onClickCancelListener;
    }

    public interface OnClickCancelListener{
        void singleClick();
    }
}