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/*
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.android.gallery3d.app;
import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import java.util.ArrayList;
public abstract class AbstractPermissionActivity extends FragmentActivity {
public static final int PERMISSION_REQUEST_STORAGE = 1;
private boolean permissionGranted = false;
protected abstract void onGetPermissionsSuccess();
protected abstract void onGetPermissionsFailure();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestStoragePermission();
}
private void requestStoragePermission() {
String[] permissions = {
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE
};
requestPermission(permissions, PERMISSION_REQUEST_STORAGE);
}
protected void requestPermission(String[] permissions, int requestCode) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
permissionGranted = true;
return;
}
boolean needRequest = false;
ArrayList<String> permissionList = new ArrayList<String>();
for (String permission : permissions) {
if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
permissionList.add(permission);
needRequest = true;
}
}
if (needRequest) {
int count = permissionList.size();
if (count > 0) {
String[] permissionArray = new String[count];
for (int i = 0; i < count; i++) {
permissionArray[i] = permissionList.get(i);
}
requestPermissions(permissionArray, requestCode);
}
}
permissionGranted = !needRequest;
}
private boolean checkPermissionGrantResults(int[] grantResults) {
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions,
int[] grantResults) {
permissionGranted = checkPermissionGrantResults(grantResults);
switch (requestCode) {
case PERMISSION_REQUEST_STORAGE: {
if (permissionGranted) {
onGetPermissionsSuccess();
} else {
onGetPermissionsFailure();
}
}
}
}
protected boolean isPermissionGranted() {
return permissionGranted;
}
}
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