pdlivexp/common/src/main/java/com/yunbao/common/utils/APKDownloadUtil.java

package com.yunbao.common.utils;

import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ProgressBar;
import android.widget.TextView;

import androidx.core.content.FileProvider;

import com.yunbao.common.R;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class APKDownloadUtil {
    /**
     * APK文件下载
     *
     * @param url
     */
    public void downloadAPK(Activity context, String url, OnUpdateListener listener) {
        Request request = new Request.Builder().url(url)
                .addHeader("Accept-Encoding", "identity").build();
        File downloadFile = new File(context.getCacheDir(), "update_app.apk");
        try {
            if (!downloadFile.exists()
                    && !downloadFile.createNewFile()) {
                return;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        showDialod(context);
        new OkHttpClient().newCall(request).enqueue(new Callback() {
            private Handler handler = new Handler();

            @Override
            public void onFailure(Call call, IOException e) {
                // 下载失败
                handler.post(() -> {
                    listener.updateFailure(-1, e.getMessage());
                    progressDialog.dismiss();
                });
            }

            @Override
            public void onResponse(Call call, Response response) {
                Looper.prepare();
                byte[] buf = new byte[2048];
                int len;
                try (InputStream inputStream = response.body().byteStream();
                     FileOutputStream outputStream = new FileOutputStream(downloadFile)) {
                    long total = response.body().contentLength();
                    long sum = 0;
                    while ((len = inputStream.read(buf)) != -1) {
                        outputStream.write(buf, 0, len);
                        sum += len;
                        int progress = (int) (sum * 1.0f / total * 100);
                        // 下载中
                        handler.post(new Runnable() {
                            @Override
                            public void run() {
                                tvProgress.setText(progress + "%");
                                progressBar.setProgress(progress);
                            }
                        });
                    }
                    outputStream.flush();
                    //启动安装app
                    installApk(context, downloadFile, context.getPackageName() + ".fileprovider");
                    handler.post(() -> progressDialog.dismiss());
                } catch (Exception e) {
                    e.printStackTrace();
                    new Handler().post(() -> {
                        listener.updateFailure(-1, e.getMessage());
                        progressDialog.dismiss();
                    });
                }
            }
        });
    }

    /**
     * 更新监听
     */
    public interface OnUpdateListener {
        void updateFailure(int code, String error);
        void onProgress(int progress);
    }
//
//    /**
//     * 启动app安装
//     *
//     * @param context
//     * @param filePath
//     */
//    private static void startInstall(Context context, File filePath) {
//
//        Intent install = new Intent(Intent.ACTION_VIEW);
//        install.setDataAndType(Uri.parse("file://" + filePath.getAbsolutePath()),
//                "application/vnd.android.package-archive");
//        install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//        context.startActivity(install);
//    }


    /**
     * 安装apk
     *
     * @param context
     * @param file
     */
    public void installApk(Context context, File file, String authority) {
        Intent intent = getInstallIntent(context, file, authority);
        context.startActivity(intent);
    }

    /**
     * 获取安装Intent
     *
     * @param context
     * @param file
     * @param authority
     * @return
     */
    public Intent getInstallIntent(Context context, File file, String authority) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        Uri uriData;
        String type = "application/vnd.android.package-archive";
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            uriData = FileProvider.getUriForFile(context, authority, file);
        } else {
            uriData = Uri.fromFile(file);
        }
        intent.setDataAndType(uriData, type);
        return intent;
    }

    public TextView tvProgress;
    public ProgressBar progressBar;
    public Dialog progressDialog;

    private void showDialod(Activity context) {
        if (progressDialog == null) {
            progressDialog = new Dialog(context, R.style.dialog);
            View view = LayoutInflater.from(context).inflate(R.layout.dialog_progress, null);
            tvProgress = view.findViewById(R.id.tvProgress);
            progressBar = view.findViewById(R.id.progressBar);
            progressDialog.setContentView(view);
            WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
            Display display = wm.getDefaultDisplay();
            int width = display.getWidth();
            Window window = progressDialog.getWindow();// 这部分是设置dialog宽高的，宽高是我从sharedpreferences里面获取到的。之前程序启动的时候有获取
            window.getDecorView().setPadding(0, 0, 0, 0);
            WindowManager.LayoutParams lp = window.getAttributes();
            lp.width = width / 4 * 3;
            window.setAttributes(lp);
        }
        progressDialog.setCancelable(false);
        progressDialog.show();
    }

}