应用内内嵌apk

最新推荐文章于 2023-09-02 17:42:42 发布

Tabeeeeeer

最新推荐文章于 2023-09-02 17:42:42 发布

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CC 4.0 BY-SA版权

文章标签：应用 apk

本文链接：https://blog.youkuaiyun.com/Tabeeeeeer/article/details/50697689

在应用内安装外部应用：

1.apk形式：

Intent intent = new Intent(Intent.ACTION_VIEW);

//filePath   apk的路径
intent.setDataAndType(Uri.parse("file://" + filePath),
      "application/vnd.android.package-archive");
((Activity) context).startActivityForResult(intent, INSTALL);

2.zip格式

使用一个AsyncTask，下面是doInBackground中的方法。

long extractedSize = 0L;
Enumeration<ZipEntry> entries;
ZipFile zip = null;
try {
   zip = new ZipFile(mInput);
   long uncompressedSize = getOriginalSize(zip);

   //在AsyncTask的doInbacjground方法中调用   主线程中执行
   publishProgress(0, (int) uncompressedSize);

   entries = (Enumeration<ZipEntry>) zip.entries();
   while (entries.hasMoreElements()) {
      ZipEntry entry = entries.nextElement();
      if (entry.isDirectory()) {
         continue;
      }
      File destination = new File(mOutput, entry.getName());
      if (!destination.getParentFile().exists()) {
         destination.getParentFile().mkdirs();
      }
      ProgressReportingOutputStream outStream = new ProgressReportingOutputStream(
            destination);

      //ProgressReportingOutputStream 中重写了write方法，

/*

	@Override
	public void write(byte[] buffer, int byteOffset, int byteCount)
     	 throws IOException {
   		super.write(buffer, byteOffset, byteCount);
   		mProgress += byteCount;
   		publishProgress(mProgress);
	}
	*/

      extractedSize += copy(zip.getInputStream(entry), outStream);
      outStream.close();
   }
} catch (ZipException e) {
   e.printStackTrace();
} catch (IOException e) {
   e.printStackTrace();
} finally {
   try {
      zip.close();
   } catch (IOException e) {
      e.printStackTrace();
   }
}

打开外部的应用：

PackageInfo pi;
    try {

	//packageName  应用的包名
        pi = context.getPackageManager().getPackageInfo(packageName, 0);        Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);        resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);        resolveIntent.setPackage(pi.packageName);

	//查询到的信息列表
        List<ResolveInfo> apps = context.getPackageManager()
                .queryIntentActivities(resolveIntent, 0);
        if (apps != null && !apps.isEmpty()) {
            ResolveInfo ri = apps.iterator().next();
            if (ri != null) {

		//匹配到的应用
                String mPackageName = ri.activityInfo.packageName;
                String mClassName = ri.activityInfo.name;

                Intent intent = new Intent(Intent.ACTION_MAIN);
                intent.addCategory(Intent.CATEGORY_LAUNCHER);

		//以外部应用的形式打开

                ComponentName cn = new ComponentName(mPackageName,
                        mClassName);
                intent.setComponent(cn);
                context.startActivity(intent);
            }
        }
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }