1 。已经root的设备 可以实现静默安装，调用pm install -r来安装的，-r是保留原来APP的数据
private boolean slienceInstall(String apkUrl) {
boolean result =false;
DataOutputStream dataOutputStream =null;
BufferedReader errorStream =null;
try {
Process process =Runtime.getRuntime().exec("su");
dataOutputStream =new DataOutputStream(process.getOutputStream());
String command ="pm install -r " + apkUrl +"\n";
dataOutputStream.write(command.getBytes(Charset.forName("utf-8")));
dataOutputStream.flush();
dataOutputStream.writeBytes("exit\n");
dataOutputStream.flush();
process.waitFor();
errorStream =new BufferedReader(new InputStreamReader(process.getErrorStream()));
String msg ="";
String line;
while ((line = errorStream.readLine()) !=null) {
msg += line;
}
if (!msg.contains("Failure")) {
result =true;
}
}catch (Exception e) {
}finally {
try {
if (dataOutputStream !=null) {
dataOutputStream.close();
}
if (errorStream !=null) {
errorStream.close();
}
}catch (IOException e) {
}
}
return result;
}
2.需要系统签名的方式，才能实现静默安装
①权限
<uses-permission android:name= "android.permission.RESTART_PACKAGES" />
<uses-permission android:name="android.permission.INSTALL_PACKAGES" tools:ignore="ProtectedPermissions" />
private boolean slienceInstallWithSysSign(String filePath) {
File file =new File(filePath);
PackageManager packageManager =getPackageManager();
Class pmClz =packageManager.getClass();
try {
if (Build.VERSION.SDK_INT >=21) {
Class aClass =Class.forName("android.app.PackageInstallObserver");
Constructor constructor =aClass.getDeclaredConstructor();
constructor.setAccessible(true);
Object installObserver =constructor.newInstance();
Method method =pmClz.getDeclaredMethod("installPackage",Uri.class,aClass,int.class,String.class);
method.setAccessible(true);
method.invoke(packageManager,Uri.fromFile(file),installObserver,2,null);
}else {
Method method =pmClz.getDeclaredMethod("installPackage",
Uri.class,Class.forName("android.content.pm.IPackageInstallObserver"),int.class,String.class);
method.setAccessible(true);
method.invoke(packageManager,Uri.fromFile(file),null,2,null);
}
return true;
}catch (Exception e) {
e.printStackTrace();
}
return false;
}
3.需要手动点击确定才能安装
/**
* 7.0以上直接安装
*需要点击确定
* @param context
* @param path
*/
public void start7Install(Context context, String path) {
Uri apkUri = FileProvider.getUriForFile(context, getPackageName() + ".provider", new File(path));//在AndroidManifest中的添加provider
Intent install = new Intent(Intent.ACTION_VIEW);
install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
install.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
install.setDataAndType(apkUri, "application/vnd.android.package-archive");
startActivity(install);
}
添加provider
<provider
android:name="androidx.core.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>
在res里添加xml文件夹，添加provider_paths
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path
name="external_files"
path="." />
</paths>
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