Button added

ui/button/button.android.ts

@@ -0,0 +1,37 @@
+import observable = require("ui/core/observable");
+import view = require("ui/core/view");
+import application = require("application");
+
+export class Button extends view.View {
+    private static textProperty = "text";
+    private _android: android.widget.Button;
+
+    constructor() {
+        super();
+        this._android = new android.widget.Button(application.android.currentContext);
+
+        var that = this;
+        this._android.setOnClickListener(new android.view.View.OnClickListener({
+            onClick: function (v) { that.emit("click"); }
+        }));
+    }
+
+    get android(): android.widget.Button {
+        return this._android;
+    }
+
+    get text(): string {
+        return this.android.getText().toString();
+    }
+    set text(value: string) {
+        this.setProperty(Button.textProperty, value);
+    }
+
+    public setNativeProperty(data: observable.PropertyChangeData) {
+        if (data.propertyName === Button.textProperty) {
+            this.android.setText(data.value);
+        } else if (true) {
+            //
+        }
+    }
+}