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Code Issues Projects Releases Packages Wiki Activity Actions

Request permissions at runtime if needed

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This commit is contained in:
Alexander Bakker 2017-12-13 19:00:58 +01:00
parent 03d0eb01f4
commit 181cdc4c2e
2 changed files with 127 additions and 38 deletions
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126
app/src/main/java/me/impy/aegis/MainActivity.java
View file

@ -1,5 +1,6 @@
package me.impy.aegis;
import android.Manifest;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
@ -37,11 +38,13 @@ import java.util.List;
import me.impy.aegis.crypto.MasterKey;
import me.impy.aegis.db.DatabaseEntry;
import me.impy.aegis.db.DatabaseManager;
import me.impy.aegis.helpers.PermissionHelper;
import me.impy.aegis.importers.DatabaseImporter;
import me.impy.aegis.helpers.SimpleItemTouchHelperCallback;
import me.impy.aegis.util.ByteInputStream;
public class MainActivity extends AppCompatActivity implements KeyProfileAdapter.Listener {
// activity request codes
private static final int CODE_GET_KEYINFO = 0;
private static final int CODE_ADD_KEYINFO = 1;
private static final int CODE_DO_INTRO = 2;
@ -49,6 +52,11 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
private static final int CODE_IMPORT = 4;
private static final int CODE_PREFERENCES = 5;
// permission request codes
private static final int CODE_PERM_EXPORT = 0;
private static final int CODE_PERM_IMPORT = 1;
private static final int CODE_PERM_CAMERA = 2;
private KeyProfileAdapter _keyProfileAdapter;
private DatabaseManager _db;
@ -103,8 +111,7 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
FloatingActionButton fab = findViewById(R.id.fab);
fab.setEnabled(true);
fab.setOnClickListener(view -> {
Intent scannerActivity = new Intent(getApplicationContext(), ScannerActivity.class);
startActivityForResult(scannerActivity, CODE_GET_KEYINFO);
onGetKeyInfo();
});
RecyclerView rvKeyProfiles = findViewById(R.id.rvKeyProfiles);
@ -146,6 +153,26 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (!PermissionHelper.checkResults(grantResults)) {
Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show();
return;
}
switch (requestCode) {
case CODE_PERM_EXPORT:
onExport();
break;
case CODE_PERM_IMPORT:
onImport();
break;
case CODE_PERM_CAMERA:
onGetKeyInfo();
break;
}
}
private void onPreferencesResult(int resultCode, Intent data) {
// refresh the entire key profile list if needed
if (data.getBooleanExtra("needsRefresh", false)) {
@ -156,43 +183,57 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
int action = data.getIntExtra("action", -1);
switch (action) {
case PreferencesActivity.ACTION_EXPORT:
// TODO: create a custom layout to show a message AND a checkbox
final boolean[] checked = {true};
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this)
.setTitle("Export the database")
.setPositiveButton(android.R.string.ok, (dialog, which) -> {
String filename;
try {
filename = _db.export(checked[0]);
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(this, "An error occurred while trying to export the database", Toast.LENGTH_SHORT).show();
return;
}
// make sure the new file is visible
MediaScannerConnection.scanFile(this, new String[]{filename}, null, null);
Toast.makeText(this, "The database has been exported to: " + filename, Toast.LENGTH_SHORT).show();
})
.setNegativeButton(android.R.string.cancel, null);
if (_db.getFile().isEncrypted()) {
final String[] items = {"Keep the database encrypted"};
final boolean[] checkedItems = {true};
builder.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int index, boolean isChecked) {
checked[0] = isChecked;
}
});
} else {
builder.setMessage("This action will export the database out of Android's private storage.");
}
builder.show();
onExport();
break;
}
}
private void onExport() {
if (!PermissionHelper.request(this, CODE_PERM_EXPORT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
return;
}
// TODO: create a custom layout to show a message AND a checkbox
final boolean[] checked = {true};
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this)
.setTitle("Export the database")
.setPositiveButton(android.R.string.ok, (dialog, which) -> {
String filename;
try {
filename = _db.export(checked[0]);
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(this, "An error occurred while trying to export the database", Toast.LENGTH_SHORT).show();
return;
}
// make sure the new file is visible
MediaScannerConnection.scanFile(this, new String[]{filename}, null, null);
Toast.makeText(this, "The database has been exported to: " + filename, Toast.LENGTH_SHORT).show();
})
.setNegativeButton(android.R.string.cancel, null);
if (_db.getFile().isEncrypted()) {
final String[] items = {"Keep the database encrypted"};
final boolean[] checkedItems = {true};
builder.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int index, boolean isChecked) {
checked[0] = isChecked;
}
});
} else {
builder.setMessage("This action will export the database out of Android's private storage.");
}
builder.show();
}
private void onImport() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
startActivityForResult(intent, CODE_IMPORT);
}
private void onImportResult(int resultCode, Intent data) {
if (resultCode != RESULT_OK) {
return;
@ -251,6 +292,15 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
saveDatabase();
}
private void onGetKeyInfo() {
if (!PermissionHelper.request(this, CODE_PERM_CAMERA, Manifest.permission.CAMERA)) {
return;
}
Intent scannerActivity = new Intent(getApplicationContext(), ScannerActivity.class);
startActivityForResult(scannerActivity, CODE_GET_KEYINFO);
}
private void onGetKeyInfoResult(int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
KeyProfile keyProfile = (KeyProfile)data.getSerializableExtra("KeyProfile");
@ -420,9 +470,9 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
startActivityForResult(preferencesActivity, CODE_PREFERENCES);
return true;
case R.id.action_import:
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
startActivityForResult(intent, CODE_IMPORT);
if (PermissionHelper.request(this, CODE_PERM_IMPORT, Manifest.permission.CAMERA)) {
onImport();
}
return true;
case R.id.action_lock:
// TODO: properly close the database

39
app/src/main/java/me/impy/aegis/helpers/PermissionHelper.java Normal file
View file

@ -0,0 +1,39 @@
package me.impy.aegis.helpers;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import java.util.ArrayList;
import java.util.List;
public class PermissionHelper {
private PermissionHelper() {
}
public static boolean request(Activity activity, int requestCode, String... perms) {
List<String> deniedPerms = new ArrayList<>();
for (String permission : perms) {
if (ActivityCompat.checkSelfPermission(activity, permission) == PackageManager.PERMISSION_DENIED) {
deniedPerms.add(permission);
}
}
int size = deniedPerms.size();
if (size > 0) {
String[] array = new String[size];
ActivityCompat.requestPermissions(activity, deniedPerms.toArray(array), requestCode);
}
return size == 0;
}
public static boolean checkResults(int[] grantResults) {
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
}