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Android6.0及以上版本一次請求多個許可權的處理方式

final private int REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS = 124;

    private void insertDummyContactWrapper() {
        List<String> permissionsNeeded = new ArrayList<String>();

        final List<String> permissionsList = new ArrayList<String>();
        if (!addPermission(permissionsList, Manifest.permission.ACCESS_FINE_LOCATION))
            permissionsNeeded.add("GPS"
); if (!addPermission(permissionsList, Manifest.permission.READ_CONTACTS)) permissionsNeeded.add("Read Contacts"); if (!addPermission(permissionsList, Manifest.permission.WRITE_CONTACTS)) permissionsNeeded.add("Write Contacts"); if (permissionsList.size() > 0
) { if (permissionsNeeded.size() > 0) { // Need Rationale String message = "You need to grant access to " + permissionsNeeded.get(0); for (int i = 1; i < permissionsNeeded.size(); i++) message = message + ", " + permissionsNeeded.get(i); showMessageOKCancel(message, new
DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { requestPermissions(permissionsList.toArray(new String[permissionsList.size()]), REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS); } }); return; } requestPermissions(permissionsList.toArray(new String[permissionsList.size()]), REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS); return; } insertDummyContact(); } private boolean addPermission(List<String> permissionsList, String permission) { if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) { permissionsList.add(permission); // Check for Rationale Option if (!shouldShowRequestPermissionRationale(permission)) return false; } return true; }

當每一個許可權獲得它的請求結果的時候,這個結果將會回撥Activity的同一個方法:onRequestPermissionsResult。通常使用HashMap讓原始碼看起來更加清楚明瞭。

@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS:
                {
                Map<String, Integer> perms = new HashMap<String, Integer>();
                // Initial
                perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.READ_CONTACTS, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.WRITE_CONTACTS, PackageManager.PERMISSION_GRANTED);
                // Fill with results
                for (int i = 0; i < permissions.length; i++)
                    perms.put(permissions[i], grantResults[i]);
                // Check for ACCESS_FINE_LOCATION
                if (perms.get(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.WRITE_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
                    // All Permissions Granted
                    insertDummyContact();
                } else {
                    // Permission Denied
                    Toast.makeText(MainActivity.this, "Some Permission is Denied", Toast.LENGTH_SHORT)
                            .show();
                }
                }
                break;
            default:
                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }