android: Support Unity text input dialog

src/api-impl/android/app/Dialog.java

@@ -30,6 +30,10 @@ public class Dialog implements Window.Callback, DialogInterface {
 		window.native_window = nativePtr;
 	}
 
+	public Dialog(Context context) {
+		this(context, 0);
+	}
+
 	public final boolean requestWindowFeature(int featureId) {
 		return false;
 	}
@@ -60,6 +64,10 @@ public class Dialog implements Window.Callback, DialogInterface {
 		this.onDismissListener = onDismissListener;
 	}
 
+	public View findViewById(int id) {
+		return window.findViewById(id);
+	}
+
 	public void show() {
 		System.out.println("showing the Dialog " + this);
 		Runnable action = new Runnable() {

src/api-impl/android/view/Window.java

@@ -101,4 +101,9 @@ public class Window {
 	public void setFormat(int format) {}
 
 	public void setLayout(int dummy, int dummy2) {}
+
+	public WindowManager getWindowManager() {
+		return new WindowManagerImpl();
+	}
+
 }

src/api-impl/android/widget/TextView.java

@@ -126,9 +126,20 @@ public class TextView extends View {
 	}
 
 	public void setHintTextColor(ColorStateList colorStateList) {}
+	public void setHintTextColor(int i) {}
 	public void setLinkTextColor(ColorStateList colorStateList) {}
 
 	public void setSingleLine() {}
+	public void setSelection(int i) {}
+	public void setSelection(int i, int j) {}
+
+	public int getSelectionStart() {
+		return 0;
+	}
+
+	public int getSelectionEnd() {
+		return 0;
+	}
 
 	public void setEllipsize(TextUtils.TruncateAt truncateAt) {}
 
@@ -245,4 +256,6 @@ public class TextView extends View {
 	public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) {}
 
 	public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, Drawable right, Drawable bottom) {}
+
+	public void setHint(CharSequence s) {}
 }