Use uiautomator screenshot

uiautomator has built in support for taking screenshots. There's no need for an
external jar.

android/bootstrap/src/io/appium/android/bootstrap/AndroidCommandExecutor.java

@@ -17,6 +17,7 @@ import io.appium.android.bootstrap.handler.PressKeyCode;
 import io.appium.android.bootstrap.handler.ScrollTo;
 import io.appium.android.bootstrap.handler.SetText;
 import io.appium.android.bootstrap.handler.Swipe;
+import io.appium.android.bootstrap.handler.TakeScreenshot;
 import io.appium.android.bootstrap.handler.TouchLongClick;
 import io.appium.android.bootstrap.handler.WaitForIdle;
 import io.appium.android.bootstrap.handler.Wake;
@@ -54,6 +55,7 @@ class AndroidCommandExecutor {
     map.put("pressBack", new PressBack());
     map.put("dumpWindowHierarchy", new DumpWindowHierarchy());
     map.put("pressKeyCode", new PressKeyCode());
+    map.put("takeScreenshot", new TakeScreenshot());
   }
 
   /**

android/bootstrap/src/io/appium/android/bootstrap/handler/TakeScreenshot.java

@@ -0,0 +1,33 @@
+package io.appium.android.bootstrap.handler;
+
+import io.appium.android.bootstrap.AndroidCommand;
+import io.appium.android.bootstrap.AndroidCommandResult;
+import io.appium.android.bootstrap.CommandHandler;
+
+import java.io.File;
+
+import com.android.uiautomator.core.UiDevice;
+
+/**
+ * This handler is used to TakeScreenshot.
+ * 
+ */
+public class TakeScreenshot extends CommandHandler {
+
+  /*
+   * @param command The {@link AndroidCommand} used for this handler.
+   * 
+   * @return {@link AndroidCommandResult}
+   * 
+   * @throws JSONException
+   * 
+   * @see io.appium.android.bootstrap.CommandHandler#execute(io.appium.android.
+   * bootstrap.AndroidCommand)
+   */
+  @Override
+  public AndroidCommandResult execute(final AndroidCommand command) {
+    final boolean result = UiDevice.getInstance().takeScreenshot(
+        new File("/data/local/tmp/screenshot.png"));
+    return getSuccessResult(result);
+  }
+}

app/android.js

@@ -679,30 +679,13 @@ Android.prototype.getScreenshot = function(cb) {
   me.adb.requireDeviceId();
   var localfile = temp.path({prefix: 'appium', suffix: '.png'});
   var b64data = "";
-  var jar = path.resolve(__dirname, '..', 'app', 'android', 'ScreenShooter.jar');
-  var jarpath = path.resolve(process.env.ANDROID_HOME, "tools", "lib");
-  var classpath = "";
 
   async.series([
     function(cb) {
-      if (isWindows) {
-        classpath = path.resolve(jarpath, "ddmlib.jar") + ";" + path.resolve(jarpath, "x86", "swt.jar") + ";" + jar;
-        cb(null);
-      } else {
-        exec('uname -m', { maxBuffer: 524288 }, function (error, stdout, stderr) {
-          if (error) {
-            cb(error);
-          } else {
-            classpath = path.resolve(jarpath, "ddmlib.jar") + ":" + path.resolve(jarpath, stdout.trim(), "swt.jar") + ":" + jar;
-            cb(null);
-          }
-        });
-      }
+      me.proxy(["takeScreenshot"], cb);
     },
     function(cb) {
-      var javaCmd = 'java -classpath "' + classpath + '" io.appium.android.screenshooter.ScreenShooter ';
-
-      var cmd = javaCmd + me.adb.curDeviceId + ' "' + localfile + '"';
+      var cmd = me.adb.adbCmd + ' pull /data/local/tmp/screenshot.png "' + localfile + '"';
       logger.debug("screenshot cmd: " + cmd);
       exec(cmd, { maxBuffer: 524288 }, function(err, stdout, stderr) {
         if (err) {