我怎样才能在我的应用程序中共享apk文件（发送应用程序本身） [英] How can i share apk file in my app (send app itself)

问题描述

我正在尝试使用此代码将我的应用程序apk文件发送到另一台设备：

I am trying to use this code to send my application apk file to another device:

public static void sendAppItself(Activity paramActivity) throws IOException {
    PackageManager pm = paramActivity.getPackageManager();
    ApplicationInfo appInfo;
    try {
        appInfo = pm.getApplicationInfo(paramActivity.getPackageName(),
                PackageManager.GET_META_DATA);
        Intent sendBt = new Intent(Intent.ACTION_SEND);
        sendBt.setType("*/*");
        sendBt.putExtra(Intent.EXTRA_STREAM,
                Uri.parse("file://" + appInfo.publicSourceDir));

        paramActivity.startActivity(Intent.createChooser(sendBt,
                "Share it using"));
    } catch (PackageManager.NameNotFoundException e1) {
        e1.printStackTrace();
    }
}

此代码效果非常好。

但与此代码共享的apk文件的名称是 base.apk

But the name of the apk file shared with this code is base.apk

我该怎么办？更改它？

推荐答案

将文件从源目录复制到新目录。
复制时重命名文件并共享复制的文件。
共享完成后删除临时文件。

Copy the file from the source directory to a new directory. Rename the file while copying and share the copied file. Delete the temp file after share is complete.

 private void shareApplication() {
    ApplicationInfo app = getApplicationContext().getApplicationInfo();
    String filePath = app.sourceDir;

    Intent intent = new Intent(Intent.ACTION_SEND);

    // MIME of .apk is "application/vnd.android.package-archive".
    // but Bluetooth does not accept this. Let's use "*/*" instead.
    intent.setType("*/*");

    // Append file and send Intent
    File originalApk = new File(filePath);

    try {
        //Make new directory in new location
        File tempFile = new File(getExternalCacheDir() + "/ExtractedApk");
        //If directory doesn't exists create new
        if (!tempFile.isDirectory())
            if (!tempFile.mkdirs())
                return;
        //Get application's name and convert to lowercase
        tempFile = new File(tempFile.getPath() + "/" + getString(app.labelRes).replace(" ","").toLowerCase() + ".apk");
        //If file doesn't exists create new
        if (!tempFile.exists()) {
            if (!tempFile.createNewFile()) {
                return;
            }
        }
        //Copy file to new location
        InputStream in = new FileInputStream(originalApk);
        OutputStream out = new FileOutputStream(tempFile);

        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        in.close();
        out.close();
        System.out.println("File copied.");
        //Open share dialog
        intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(tempFile));
        startActivity(Intent.createChooser(intent, "Share app via"));

    } catch (IOException e) {
        e.printStackTrace();
    }
}

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