Skip to content

Instantly share code, notes, and snippets.

Show Gist options
  • Save digitalprecision/735820df14f696fc2c6c8b251b2b05d6 to your computer and use it in GitHub Desktop.
Save digitalprecision/735820df14f696fc2c6c8b251b2b05d6 to your computer and use it in GitHub Desktop.
Android Webview (default) with Runtime Permissions via k0shk0sh PermissionsHelper
package com.shouttag.mothership;
import android.app.Activity; // Need for constants
import android.content.DialogInterface; // Needed for building out dialog box
import android.content.Intent; // Needed for intent interaction (camera)
import android.graphics.Color; // Needed for alert dialog option coloring
import android.support.annotation.NonNull;
import java.io.File; // Needed for storing image in temp file on device
import java.io.IOException; // Needed for storing image in temp file on device
import java.text.SimpleDateFormat; // Needed for date formatting
import java.util.Arrays;
import java.util.Date; // Needed for date api
import java.util.List;
import android.Manifest; // Needed for manifest permission access
import android.net.Uri; // Needed for onFileChooser
import android.os.Build; // Needed to determine sdk version
import android.os.Bundle; // Needed for onCreate
import android.os.Environment; // Need for external storage dir
import android.provider.MediaStore; // Needed for external storage access
import android.support.v7.app.AppCompatActivity; // Needed for activity extension
import android.support.v7.app.AlertDialog; // Needed for building out dialog box
import android.util.Log; // Needed for logging
import android.view.View; // Needed for hardware accel
import android.webkit.*;
import com.fastaccess.permission.base.PermissionHelper;
import com.fastaccess.permission.base.callback.OnPermissionCallback;
public class ActivityMain extends AppCompatActivity implements OnPermissionCallback
{
protected static final int REQUEST_CODE_DEFAULT = 1;
protected static final int REQUEST_CODE_ANDROID_5 = 2;
protected static final int REQUEST_CODE_THUMBNAIL = 3;
protected static final int REQUEST_CODE_GALLERY = 4;
protected static final String LOG_TAG = "!!!!!";
//protected static final String WEB_VIEW_URL = "https://dev_mpurcell.shouttag.com/test.html";
protected static final String WEB_VIEW_URL = "https://dev_mpurcell.shouttag.com";
protected PermissionHelper permissionHelper;
protected final static String[] PERMISSIONS_CAMERA = new String[] {
Manifest.permission.CAMERA,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
protected final static String[] PERMISSIONS_GALLERY = new String[] {
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
/**
* Container for layout so snackbar knows which layout to render against for permissions
*
* @type View
*/
protected View layoutWebView;
/**
* Container for temp file uri
*
* @type string
*/
protected String tempFileUri;
/**
* @type WebView
*/
protected WebView webView;
/**
* @type ValueCallback<Uri[]>
*/
protected ValueCallback<Uri[]> fileUriCallback;
/**
* @type WebSettings
*/
protected WebSettings webViewSettings;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
layoutWebView = findViewById(R.id.webview);
webView = (WebView) findViewById(R.id.webview);
webViewSettings = webView.getSettings();
webViewSettings.setJavaScriptEnabled(true);
webViewSettings.setLoadWithOverviewMode(true);
webViewSettings.setAllowFileAccess(true);
webView.setWebViewClient(new MyCustom_Api_Client());
webView.setWebChromeClient(new MyCustom_Api_ChromeClient());
// If SDK version is greater of 19 then activate hardware acceleration otherwise activate software acceleration
if (Build.VERSION.SDK_INT >= 19) {
webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
} else if (Build.VERSION.SDK_INT >= 11 && Build.VERSION.SDK_INT < 19) {
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
webView.loadUrl(WEB_VIEW_URL);
permissionHelper = PermissionHelper.getInstance(this);
}
public class MyCustom_Api_ChromeClient extends WebChromeClient
{
// For Android > 5.0
@Override
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams)
{
renderImageUploadOptions(filePathCallback);
return true;
}
}
public class MyCustom_Api_Client extends WebViewClient {}
protected String convertPermToHumanReadable(String permission)
{
switch (permission) {
case Manifest.permission.CAMERA:
return "camera";
case Manifest.permission.WRITE_EXTERNAL_STORAGE:
return "external storage";
default:
return null;
}
}
protected File createImageFile() throws IOException
{
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/!shouttag/");
if (!storageDir.exists()) {
storageDir.mkdirs();
}
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
tempFileUri = image.getAbsolutePath();
return image;
}
protected void intentCamera()
{
// Don't try to do individually, for some reason perms get pre-granted then nothing happens
permissionHelper
.setForceAccepting(false)
.request(PERMISSIONS_CAMERA);
if ((permissionHelper.isPermissionGranted(Manifest.permission.CAMERA)) &&
(permissionHelper.isPermissionGranted(Manifest.permission.WRITE_EXTERNAL_STORAGE))) {
showCamera();
}
}
protected void intentGallery()
{
// Don't try to do individually, for some reason perms get pre-granted then nothing happens
permissionHelper
.setForceAccepting(false)
.request(PERMISSIONS_GALLERY);
if (permissionHelper.isPermissionGranted(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
showGallery();
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
super.onActivityResult(requestCode, resultCode, intent);
permissionHelper.onActivityForResult(requestCode);
switch (requestCode) {
case REQUEST_CODE_ANDROID_5:
Uri result;
if (null == fileUriCallback) {
return;
}
if (intent == null || resultCode != Activity.RESULT_OK) {
result = null;
} else {
result = intent.getData();
}
if (result != null) {
fileUriCallback.onReceiveValue(new Uri[]{result});
fileUriCallback = null;
}
break;
case REQUEST_CODE_THUMBNAIL:
File file = new File(tempFileUri);
if (resultCode == Activity.RESULT_OK) {
Uri localUri = Uri.fromFile(file);
Intent localIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, localUri);
ActivityMain.this.sendBroadcast(localIntent);
fileUriCallback.onReceiveValue(new Uri[]{localUri});
fileUriCallback = null;
} else {
if (file.exists()) {
file.delete();
}
fileUriCallback.onReceiveValue(new Uri[]{});
fileUriCallback = null;
}
break;
case REQUEST_CODE_GALLERY:
if (resultCode == RESULT_OK) {
Uri selectedImageUri = intent.getData();
Intent localIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, selectedImageUri);
ActivityMain.this.sendBroadcast(localIntent);
// If we want to downsize check out the post
// http://stackoverflow.com/questions/2507898/how-to-pick-an-image-from-gallery-sd-card-for-my-app
fileUriCallback.onReceiveValue(new Uri[]{selectedImageUri});
fileUriCallback = null;
} else {
fileUriCallback.onReceiveValue(new Uri[]{});
fileUriCallback = null;
}
break;
}
}
protected void renderImageUploadOptions(ValueCallback<Uri[]> filePathCallback)
{
fileUriCallback = filePathCallback;
final CharSequence[] items = { "Take Photo", "Choose from Gallery", "Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(ActivityMain.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Take Photo")) {
intentCamera();
} else if (items[item].equals("Choose from Gallery")) {
intentGallery();
} else if (items[item].equals("Cancel")) {
fileUriCallback.onReceiveValue(new Uri[]{});
fileUriCallback = null;
dialog.dismiss();
}
}
});
builder.show();
}
protected void showCamera()
{
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(ActivityMain.this.getPackageManager()) != null) {
Uri imageUri = null;
try {
imageUri = Uri.fromFile(createImageFile());
} catch (IOException e) {
e.printStackTrace();
}
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(takePictureIntent, REQUEST_CODE_THUMBNAIL);
}
}
protected void showGallery()
{
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_PICK);
startActivityForResult(Intent.createChooser(intent, this.getString(R.string.select_image_from_gallery)), REQUEST_CODE_GALLERY);
}
/*
* PermissionHelper overrides
*/
@Override public void onPermissionGranted(@NonNull String[] permissionName)
{
//Log.i(LOG_TAG, "onPermissionGranted | Permission(s) " + Arrays.toString(permissionName) + " Granted");
}
@Override public void onPermissionDeclined(@NonNull String[] permissionName)
{
//Log.i(LOG_TAG, "onPermissionDeclined | Permission(s) " + Arrays.toString(permissionName) + " Declined");
}
@Override public void onPermissionPreGranted(@NonNull String permissionsName)
{
//Log.i(LOG_TAG, "onPermissionPreGranted | Permission( " + permissionsName + " ) preGranted");
}
@Override public void onPermissionNeedExplanation(@NonNull String permissionName)
{
//Log.d(LOG_TAG, "onPermissionPreGranted | Permission( " + permissionName + " ) preGranted");
}
@Override public void onPermissionReallyDeclined(@NonNull String permissionName)
{
//Log.i(LOG_TAG, "onPermissionReallyDeclined | Permission " + permissionName + " can only be granted from settingsScreen");
}
@Override public void onNoPermissionNeeded() {
//Log.i(LOG_TAG, "onNoPermissionNeeded | Permission(s) not needed");
}
@Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
{
// Skipping parent on purpose, I don't want to keep annoying the user about declined, and permanently declined perms
// onRequestPermissionsResult(requestCode, permissions, grantResults);
List<String> declinedPermissionsAsList;
declinedPermissionsAsList = permissionHelper.declinedPermissionsAsList(this, permissions);
if (!declinedPermissionsAsList.isEmpty()) {
final String[] declinedPermissions = declinedPermissionsAsList.toArray(new String[declinedPermissionsAsList.size()]);
for (int i = 0; i < declinedPermissions.length; i++) {
declinedPermissions[i] = convertPermToHumanReadable(declinedPermissions[i]);
}
AlertDialog dialog = new AlertDialog.Builder(this)
.setTitle("The following perms must be allowed to upload photos:")
.setItems(declinedPermissions, null)
.setPositiveButton("!shouttag Settings", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
permissionHelper.openSettingsScreen();
fileUriCallback.onReceiveValue(new Uri[]{});
fileUriCallback = null;
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
fileUriCallback.onReceiveValue(new Uri[]{});
fileUriCallback = null;
dialog.dismiss();
}
})
.show();
dialog.getButton(dialog.BUTTON_NEGATIVE).setTextColor(Color.RED);
dialog.getButton(dialog.BUTTON_POSITIVE).setTextColor(Color.rgb(60, 179, 113));
} else {
if (Arrays.asList(permissions).contains(Manifest.permission.CAMERA)) {
showCamera();
} else {
showGallery();
}
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment