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A helper class to detect whether DownloadManager is disabled in Android device,if true show AlertDialog to tell user to enable it.
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.AppCompatTextView;
public final class DownloadManagerResolver {
private static final String DOWNLOAD_MANAGER_PACKAGE_NAME = "com.android.providers.downloads";
/**
* Resolve whether the DownloadManager is enable in current devices.
*
* @return true if DownloadManager is enable,false otherwise.
*/
public static boolean resolve(Context context) {
boolean enable = resolveEnable(context);
if (!enable) {
AlertDialog alertDialog = createDialog(context);
alertDialog.show();
}
return enable;
}
/**
* Resolve whether the DownloadManager is enable in current devices.
*
* @param context
* @return true if DownloadManager is enable,false otherwise.
*/
private static boolean resolveEnable(Context context) {
int state = context.getPackageManager()
.getApplicationEnabledSetting(DOWNLOAD_MANAGER_PACKAGE_NAME);
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR2) {
return !(state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED ||
state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER
|| state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED);
} else {
return !(state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED ||
state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER);
}
}
private static AlertDialog createDialog(final Context context) {
AppCompatTextView messageTextView = new AppCompatTextView(context);
messageTextView.setTextSize(16f);
messageTextView.setText("DownloadManager is disabled. Please enable it.");
return new AlertDialog.Builder(context)
.setView(messageTextView, 50, 30, 50, 30)
.setPositiveButton("ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
enableDownloadManager(context);
}
})
.setCancelable(false)
.create();
}
/**
* Start activity to enable DownloadManager in Settings.
*/
private static void enableDownloadManager(Context context) {
try {
//Open the specific App Info page:
Intent intent = new Intent(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
intent.setData(Uri.parse("package:" + DOWNLOAD_MANAGER_PACKAGE_NAME));
context.startActivity(intent);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
//Open the generic Apps page:
Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_APPLICATIONS_SETTINGS);
context.startActivity(intent);
}
}
}
@liqian685

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@liqian685 liqian685 commented Apr 24, 2016

Hello, Folyd, Can I use the class in my project?Does it have copyright? If I use it in my project, what should I do? By the way, thank you for you sharing.

@AbreuY

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@AbreuY AbreuY commented Dec 21, 2017

Hi, thanks for this code. I'm stuck on this problem. But how i can use this class?

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