Add: tasker plugin support, injectable webview

app/src/main/java/com/stardust/scriptdroid/droid/PathChecker.java

@@ -0,0 +1,64 @@
+package com.stardust.scriptdroid.droid;
+
+import android.app.Activity;
+import android.os.Build;
+import android.text.TextUtils;
+import android.widget.Toast;
+
+import com.stardust.scriptdroid.R;
+
+import java.io.File;
+import java.util.LinkedList;
+import java.util.List;
+
+import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
+import static android.content.pm.PackageManager.PERMISSION_GRANTED;
+
+/**
+ * Created by Stardust on 2017/4/1.
+ */
+
+public class PathChecker {
+    public static final int CHECK_RESULT_OK = 0;
+
+    private Activity mActivity;
+
+    public PathChecker(Activity activity) {
+        mActivity = activity;
+    }
+
+
+    public static int check(final String path) {
+        if (TextUtils.isEmpty(path))
+            return R.string.text_path_is_empty;
+        if (!new File(path).exists())
+            return R.string.text_file_not_exists;
+        return CHECK_RESULT_OK;
+    }
+
+    public boolean checkAndToastError(String path) {
+        int result = checkWithStoragePermission(path);
+        if (result != CHECK_RESULT_OK) {
+            Toast.makeText(mActivity, result, Toast.LENGTH_SHORT).show();
+            return false;
+        }
+        return true;
+    }
+
+    private int checkWithStoragePermission(String path) {
+        if (!hasStorageReadPermission(mActivity)) {
+            return R.string.text_no_file_rw_permission;
+        }
+        return check(path);
+    }
+
+    private static boolean hasStorageReadPermission(Activity activity) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            return Build.VERSION.SDK_INT < Build.VERSION_CODES.M ||
+                    activity.checkSelfPermission(READ_EXTERNAL_STORAGE) == PERMISSION_GRANTED;
+        }
+        return true;
+    }
+
+
+}