[Android] Fix problems in Android Lint (#2781)

1. Fix permission problem of getSystemService(Context.TELEPHONY_SERVICE))
2. Fix allocate new object problem in CircleProgressBra.onLayout
3. Fix boxing/unboxing problem in WXScroller
4. Add lint.xml to git

android/sdk/.gitignore

@@ -10,7 +10,6 @@ bin
 .settings
 gen
 *.iml
-lint.xml
 project.properties
 assets/main.js
 assets/weex-main-jsfm.js

android/sdk/lint.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+  <!-- Ignore the UselessLeaf issue in the specified file -->
+  <issue id="IconLocation">
+    <ignore path="src/main/res/drawable/weex_error.png" />
+  </issue>
+</lint>

android/sdk/src/main/java/com/taobao/weex/WXEnvironment.java

@@ -18,6 +18,9 @@
  */
 package com.taobao.weex;
 
+import static android.content.Context.MODE_PRIVATE;
+
+import android.annotation.SuppressLint;
 import android.app.Application;
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -28,8 +31,6 @@
 import android.os.Environment;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
-import android.util.Log;
-
 import com.taobao.weex.common.WXConfig;
 import com.taobao.weex.utils.FontDO;
 import com.taobao.weex.utils.LogLevel;
@@ -39,7 +40,6 @@
 import com.taobao.weex.utils.WXSoInstallMgrSdk;
 import com.taobao.weex.utils.WXUtils;
 import com.taobao.weex.utils.WXViewUtils;
-
 import dalvik.system.PathClassLoader;
 import java.io.BufferedReader;
 import java.io.File;
@@ -52,8 +52,6 @@
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-import static android.content.Context.MODE_PRIVATE;
-
 public class WXEnvironment {
 
   public static final String OS = "android";
@@ -279,6 +277,7 @@ public static String getCustomOptions(String key){
   }
 
 
+  @SuppressLint("SdCardPath")
   public static String copySoDesDir() {
     try {
       if (TextUtils.isEmpty(COPY_SO_DES_DIR)) {
@@ -397,9 +396,18 @@ public static boolean isPerf() {
     return isPerf;
   }
 
+  @SuppressLint("HardwareIds")
   private static String getDevId() {
-    return sApplication == null ? "" : ((TelephonyManager) sApplication
+    String ret = "";
+    if(sApplication != null){
+      try{
+        ret = ((TelephonyManager) sApplication
             .getSystemService(Context.TELEPHONY_SERVICE)).getDeviceId();
+      }catch (SecurityException | NullPointerException e){
+        WXLogUtils.e(WXLogUtils.getStackTrace(e));
+      }
+    }
+    return ret;
   }
 
   public static Application getApplication() {

android/sdk/src/main/java/com/taobao/weex/ui/component/WXScroller.java

@@ -443,6 +443,7 @@ protected MeasureOutput measure(int width, int height) {
     return measureOutput;
   }
 
+  @SuppressLint("ClickableViewAccessibility")
   @Override
   protected ViewGroup initComponentHostView(@NonNull Context context) {
     String scroll;
@@ -492,7 +493,7 @@ public void onLayoutChange(View view, final int left, int top, final int right,
           scrollView.post(new Runnable() {
             @Override
             public void run() {
-              if (mIslastDirectionRTL != null && isLayoutRTL() != mIslastDirectionRTL.booleanValue()) {
+              if (mIslastDirectionRTL != null && isLayoutRTL() != mIslastDirectionRTL) {
                 // when layout direction changed we need convert x to RTL x for scroll to the same item
                 int currentX = getScrollX();
                 int totalWidth = getInnerView().getChildAt(0).getWidth();
@@ -507,7 +508,7 @@ public void run() {
                   scrollView.scrollBy(changedWidth, component.getScrollY());
                 }
               }
-              mIslastDirectionRTL = new Boolean(isLayoutRTL());
+              mIslastDirectionRTL = isLayoutRTL();
             }
           });
         }

android/sdk/src/main/java/com/taobao/weex/ui/view/refresh/circlebar/CircleProgressBar.java

@@ -143,11 +143,18 @@ protected void onLayout(boolean changed, int left, int top, int right, int botto
       mShadowRadius = (int) (density * SHADOW_RADIUS);
 
       if (elevationSupported()) {
-        mBgCircle = new ShapeDrawable(new OvalShape());
+        if(mBgCircle == null) {
+          mBgCircle = new ShapeDrawable(new OvalShape());
+        }
         ViewCompat.setElevation(this, SHADOW_ELEVATION * density);
       } else {
-        OvalShape oval = new OvalShadow(mShadowRadius, mDiameter - mShadowRadius * 2);
-        mBgCircle = new ShapeDrawable(oval);
+        if(!(mBgCircle != null &&
+            mBgCircle.getShape() instanceof  OvalShadow &&
+            ((OvalShadow) mBgCircle.getShape()).mCircleDiameter == (mDiameter - mShadowRadius * 2) &&
+            ((OvalShadow) mBgCircle.getShape()).mShadowRadius == mShadowRadius)) {
+          OvalShape oval = new OvalShadow(mShadowRadius, mDiameter - mShadowRadius * 2);
+          mBgCircle = new ShapeDrawable(oval);
+        }
         ViewCompat.setLayerType(this, ViewCompat.LAYER_TYPE_SOFTWARE, mBgCircle.getPaint());
         mBgCircle.getPaint().setShadowLayer(mShadowRadius, shadowXOffset, shadowYOffset,
                                             KEY_SHADOW_COLOR);