具体查看代码:
首先在清单文件配置三个权限读写权限和请求安装权限(兼容Android8.0手机)如下:
<!--安装apk权限-->
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
<!-- 在SDCard中创建与删除文件权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<!-- 往SDCard 读写入数据权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
兼容Android7.0 FileProvider
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths" />
</provider>
记得在res下面配置xml文件夹:如下:
下面是provider_paths.xml的文件内容
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path
name="external_files"
path="." />
</paths>
然后上下载和安装的代码:
/**
* 下载apk的方法
*
* @param activity 上下文
*/
public void downloadApk(final Activity activity) {
HttpUtils httpUtils = new HttpUtils();
// 判断sd卡是否挂载
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
final String filePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/jfsj.apk";
// httpUtils.download("http://cdn1.down.apk.gfan.net.cn/Pfiles/2020/05/21/gfanxapp_20200521194529_45df3390-b57e-4c16-b0fb-fb0ebcac1a80.apk", "/mnt/sdcard/mobilesafe72_2.apk",
httpUtils.download("https://imtt.dd.qq.com/16891/apk/53F52C519A0CDEF8A6BA6579A7BD20F2.apk?fsname=com.wifi.key_5.8.9_589.apk&csr=1bbd", filePath,
new RequestCallBack<File>() {
// 下载成功的时候调用
@Override
public void onSuccess(ResponseInfo<File> arg0) {
CommonLoading.getInstance().closeDialog();
Toast.makeText(activity.getApplicationContext(), "下载成功", Toast.LENGTH_SHORT).show();
// 安装最新版本
install(filePath, activity);
}
// 下载失败的时候调用
@Override
public void onFailure(HttpException arg0, String arg1) {
Log.e("下载失败", "失败了:" + arg0.getLocalizedMessage());
Toast.makeText(activity.getApplicationContext(), "下载失败了," + arg0.getLocalizedMessage(), Toast.LENGTH_LONG).show();
}
@Override
public void onLoading(long total, long current, boolean isUploading) {
super.onLoading(total, current, isUploading);
long progress = (current / total) * 100;
Log.e("下载进度", current + "/" + total + ":进度" + progress + "%");
}
});
}
}
/**
* 安装最新版本
*
* @param filePath 安装包的路径
*/
private void install(String filePath, Activity activity) {
Intent intent = new Intent();
intent.setAction("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
Uri fileURI;
File file = new File(filePath);
if (Build.VERSION.SDK_INT >= 24) {
fileURI = FileProvider.getUriForFile(activity, activity.getApplicationContext().getPackageName() + ".provider", file);
} else {
//android70.以下手机
fileURI = Uri.fromFile(file);
}
//Android7.0以上必须添加如下代码
activity.grantUriPermission(activity.getPackageName(), fileURI, Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setDataAndType(fileURI, "application/vnd.android.package-archive");
// 当当前的activity退出的时候,会调用之前activity的onActivityResult方法
activity.startActivityForResult(intent, 0);
}
使用方法:调用downloadApk这个方法即可。
注意记得添加动态权限否则报错,还有就是如果使用android9.0以上手机并且你的网址是http的非https,记得在清单文件添加如下:否则可能会无法下载apk
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android:usesCleartextTraffic="true"