app内下载apk修改。

BaseModule/src/main/java/com/xscm/moduleutil/utils/DownloadUtil.java

@@ -1,16 +1,21 @@
 package com.xscm.moduleutil.utils;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.os.Environment;
 import android.os.Handler;
 import android.os.Looper;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+
 import android.util.Log;
 
 import com.alibaba.android.arouter.utils.TextUtils;
 import com.blankj.utilcode.util.FileUtils;
+import com.blankj.utilcode.util.LogUtils;
 import com.blankj.utilcode.util.ThreadUtils;
+import com.blankj.utilcode.util.ToastUtils;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -18,8 +23,12 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.util.Objects;
 
+import io.reactivex.Observable;
+import io.reactivex.ObservableEmitter;
+import io.reactivex.ObservableOnSubscribe;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
 import okhttp3.ResponseBody;
 import retrofit2.Call;
 import retrofit2.Callback;
@@ -42,18 +51,60 @@ public class DownloadUtil {
     private static final String PATH_AUDIO = Environment.getExternalStorageDirectory() + "/qipao/audio";
 
 
-    public DownloadUtil(Context context,String downUrl) {
+    @SuppressLint("CheckResult")
-        this.mContext = context;
+    public DownloadUtil(Context context, String downUrl) {
-
+        // 1. 判空，避免空指针
-        if (mApi == null) {
+        if (context == null) {
-            //初始化网络请求接口
+            ToastUtils.showShort("Context 不能为 null！");
-            mApi = ApiHelper.getInstance().createService(ApiInterface.class);
+            LogUtils.e("Context 不能为 null！."+(mApi == null));
-            int i = downUrl.lastIndexOf('/');//一定是找最后一个'/'出现的位置
+            return;
-            if (i != -1) {
-                downUrl = downUrl.substring(i);
-            }
-            mApkPath = new File(Objects.requireNonNull(mContext.getExternalFilesDir(PATH_APK+"_"+downUrl)).getAbsolutePath()).getAbsolutePath();
         }
+        if (downUrl == null || downUrl.trim().isEmpty()) {
+            ToastUtils.showShort("下载链接不能为 null 或空！");
+            LogUtils.e("下载链接不能为 null 或空！."+(mApi == null));
+            return;
+        }
+
+        this.mContext = context;
+        final String dUrl = downUrl;
+        File qipaoDir = new File(mContext.getFilesDir(), "qipao");
+        if (qipaoDir.exists() && qipaoDir.isDirectory()) {
+            Observable.create(new ObservableOnSubscribe<Boolean>() {
+                @Override
+                public void subscribe(ObservableEmitter<Boolean> emitter) throws Exception {
+                    LogUtils.e("删除文件中."+(mApi == null));
+                    FileUtils.deleteAllInDir(qipaoDir);
+                    emitter.onNext(true);
+                }
+            }).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe(result -> {
+                LogUtils.e("删除成功."+(mApi == null));
+                if (mApi == null) {
+                    //初始化网络请求接口
+                    mApi = ApiHelper.getInstance().createService(ApiInterface.class);
+                    int i = dUrl.lastIndexOf('/');//一定是找最后一个'/'出现的位置
+                    String downUrlEnd = "";
+                    if (i != -1) {
+                        downUrlEnd = dUrl.substring(i);
+                        if (downUrlEnd.contains("/")) {
+                            downUrlEnd = downUrlEnd.replace("/", "");
+                        }
+                    }
+                    mApkPath = new File(mContext.getFilesDir(), PATH_APK + downUrlEnd).getAbsolutePath();
+                }
+            });
+        } else {
+            if (mApi == null) {
+                //初始化网络请求接口
+                mApi = ApiHelper.getInstance().createService(ApiInterface.class);
+                int i = downUrl.lastIndexOf('/');//一定是找最后一个'/'出现的位置
+                if (i != -1) {
+                    downUrl = downUrl.substring(i);
+                }
+                mApkPath = new File(mContext.getFilesDir(), PATH_APK + downUrl.replace("/", "")).getAbsolutePath();
+            }
+        }
+
+
     }
 
     public void downloadVoiceFile(String url, final DownloadListener downloadListener) {