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This is the mainactivity/first activity of the application that's there long enough to make the async install ing of the SecurityProvider work.
public class MainActivity extends Activity implements ProviderInstaller.ProviderInstallListener {
private static final int ERROR_DIALOG_REQUEST_CODE = 1;
private boolean mRetryProviderInstall;
//Update the security provider when the activity is created.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ProviderInstaller.installIfNeededAsync(this, this);
}
/**
* This method is only called if the provider is successfully updated
* (or is already up-to-date).
*/
@Override
protected void onProviderInstalled() {
// Provider is up-to-date, app can make secure network calls.
}
/**
* This method is called if updating fails; the error code indicates
* whether the error is recoverable.
*/
@Override
protected void onProviderInstallFailed(int errorCode, Intent recoveryIntent) {
if (GooglePlayServicesUtil.isUserRecoverableError(errorCode)) {
// Recoverable error. Show a dialog prompting the user to
// install/update/enable Google Play services.
GooglePlayServicesUtil.showErrorDialogFragment(
errorCode,
this,
ERROR_DIALOG_REQUEST_CODE,
new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
// The user chose not to take the recovery action
onProviderInstallerNotAvailable();
}
});
} else {
// Google Play services is not available.
onProviderInstallerNotAvailable();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == ERROR_DIALOG_REQUEST_CODE) {
// Adding a fragment via GooglePlayServicesUtil.showErrorDialogFragment
// before the instance state is restored throws an error. So instead,
// set a flag here, which will cause the fragment to delay until
// onPostResume.
mRetryProviderInstall = true;
}
}
/**
* On resume, check to see if we flagged that we need to reinstall the
* provider.
*/
@Override
protected void onPostResume() {
super.onPostResult();
if (mRetryProviderInstall) {
// We can now safely retry installation.
ProviderInstall.installIfNeededAsync(this, this);
mRetryProviderInstall = false;
}
private void onProviderInstallerNotAvailable() {
// This is reached if the provider cannot be updated for some reason.
// App should consider all HTTP communication to be vulnerable, and take
// appropriate action (e.g. inform backend, block certain high-risk actions, etc.).
}
}
}
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