optimize memory and image size. remove unnecessary language file

automator/src/main/java/com/stardust/automator/UiObject.java

@@ -4,6 +4,7 @@ import android.app.UiAutomation;
 import android.content.Intent;
 import android.graphics.Rect;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.util.Pools;
 import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat;
@@ -129,8 +130,10 @@ public class UiObject extends AccessibilityNodeInfoCompat {
         return getViewIdResourceName();
     }
 
+    @NonNull
     public CharSequence text() {
-        return getText();
+        CharSequence t = getText();
+        return t == null ? "" : t;
     }
 
     public CharSequence desc() {
@@ -305,6 +308,10 @@ public class UiObject extends AccessibilityNodeInfoCompat {
         return mAllocator.getParent(this);
     }
 
+    public boolean visibleToUser() {
+        return isVisibleToUser();
+    }
+
     @Override
     public List<AccessibilityNodeInfoCompat> findAccessibilityNodeInfosByText(String text) {
         if (mAllocator == null)

automator/src/main/java/com/stardust/automator/simple_action/ActionFactory.java

@@ -48,7 +48,7 @@ public class ActionFactory {
             @Override
             protected void performAction(UiObject node) {
                 Bundle args = new Bundle();
-                args.putCharSequence(AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE, text);
+                args.putCharSequence(AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE, node.text() + text);
                 node.performAction(getAction(), args);
             }
         };

automator/src/main/java/com/stardust/uiautomator/Test.java

@@ -0,0 +1,35 @@
+package com.stardust.uiautomator;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.pm.InstrumentationInfo;
+import android.widget.Toast;
+
+import java.util.List;
+
+/**
+ * Created by Stardust on 2017/5/9.
+ */
+
+public class Test {
+
+
+    private void runTests(Context context) {
+        final String packageName = context.getPackageName();
+        final List<InstrumentationInfo> list =
+                context.getPackageManager().queryInstrumentation(packageName, 0);
+        if (list.isEmpty()) {
+            Toast.makeText(context, "Cannot find instrumentation for " + packageName,
+                    Toast.LENGTH_SHORT).show();
+            return;
+        }
+        final InstrumentationInfo instrumentationInfo = list.get(0);
+        final ComponentName componentName =
+                new ComponentName(instrumentationInfo.packageName,
+                        instrumentationInfo.name);
+        if (!context.startInstrumentation(componentName, null, null)) {
+            Toast.makeText(context, "Cannot run instrumentation for " + packageName,
+                    Toast.LENGTH_SHORT).show();
+        }
+    }
+}