好吧,事实证明这比我想象的要复杂得多.基本问题是最高的Z-ordered按钮总是获得触摸事件,但是即使它没有处理事件,也不会在较低的Z-order上传递它.要获得两个按钮来查看事件,需要解决方法.这是基本方法：

1：在片段/活动中创建一个当前包含十六进制按钮的容器

2：创建一个包含按钮的片段,以及所有这些按钮和另一个按钮,其中alpha = 0

3：添加一个getOverlay()：返回alpha = 0按钮的View方法

4：在片段中实现hitTest()：Button方法

5：在主Activity / Fragment中,设置侦听器以处理叠加按钮的触摸事件

我制作(并测试了)一个应用程序来演示这个概念.我要把hitTest留给你,因为它相当乏味

activity_main.xml中：

xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

android:paddingBottom="@dimen/activity_vertical_margin"

tools:context=".MainActivity">

android:layout_width="match_parent"

android:layout_height="match_parent"/>

fragment_buttons.xml：

xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.example.me.testapplication.Buttons">

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/lorem"/>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/lorem_ipsum"

android:alpha="0.4"/>

android:layout_width="match_parent"

android:layout_height="match_parent"

android:alpha="0"/>

MainActivity.java：

public class MainActivity extends ActionBarActivity {

public static final String DEBUG_TAG = "TEST";

private Buttons mButtons;

private GestureDetector mGestureDetector;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

mButtons = Buttons.newInstance();

getFragmentManager().beginTransaction()

.replace(R.id.main_container, mButtons)

.commit();

mGestureDetector = new GestureDetector(this, mGestureListener);

}

@Override

protected void onStart() {

super.onStart();

View overlay = mButtons.getOverlay();

if (overlay != null) {

overlay.setOnTouchListener(mTouchListener);

}

}

...

private View.OnTouchListener mTouchListener = new View.OnTouchListener() {

@Override

public boolean onTouch(View v, MotionEvent event) {

return mGestureDetector.onTouchEvent(event);

}

};

private GestureDetector.OnGestureListener mGestureListener

=new GestureDetector.OnGestureListener()

{

@Override

public boolean onDown(MotionEvent e) {

String buttonHit = mButtons.hitTest(e);

Log.i(DEBUG_TAG, buttonHit);

return true;

}

...

};

}

Buttons.java：

public class Buttons extends Fragment {

Button mButton1, mButton2;

View mOverlay;

public static Buttons newInstance() {

return new Buttons();

}

public Buttons() {}

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

}

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View root = inflater.inflate(R.layout.fragment_buttons, container, false);

mButton1 = (Button) root.findViewById(R.id.button1);

mButton2 = (Button) root.findViewById(R.id.button2);

mOverlay = root.findViewById(R.id.overlay);

return root;

}

@Nullable

public View getOverlay() {

return mOverlay;

}

public String hitTest(MotionEvent event) {

float x = event.getX();

float y = event.getY();

if (x > mButton1.getLeft() && mButton1.getRight() > x &&

y > mButton1.getTop() && mButton1.getBottom() > y)

{

return "Button 1";

} else if (x > mButton2.getLeft() && mButton2.getRight() > x &&

y > mButton2.getTop() && mButton2.getBottom() > y)

{

return "Button 2";

} else {

return "None";

}

}

}

祝好运.

ETA：样本hitTest

/**

* UNTESTED

* I'm going to assume square buttons (equilateral hexagons)

* this just calculates if the distance from the center of the button is less than its width. It may be good enough for government work.

*/

public View hitTest(MotionEvent e) {

for (Button hex : SomeIterableThingHoldingYourButtons) { //ArrayList maybe

float x = e.getX();

float y = e.getY();

if (isInHex(hex, x, y)) return hex;

}

return null;

}

private boolean isInHex(Button hex, float x, float y) {

float radius = hex.getRight() - hex.getLeft() / 2;

float centerX = hex.getLeft() + radius;

float centerY = hex.getTop() + radius;

float dist = FloatMath.sqrt(...) //euclidean distance

return dist < radius;

}