你必须专注于RelativeLayout。
MyActivity.java
public class MyActivity extends Activity {
private RelativeLayout mainLayout;
private TextView myTag;
private TextView xcordview;
private TextView ycordview;
private MediaPlayer mp1;
private String currentTag;
private boolean areaDetected;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
mainLayout = (RelativeLayout) findViewById(R.id.main_layout);
myTag = (TextView) findViewById(R.id.tag);
xcordview = (TextView) findViewById(R.id.x_view);
ycordview = (TextView) findViewById(R.id.y_view);
currentTag = "";
initEvent();
}
private void initEvent() {
mainLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
int x = (int) motionEvent.getX();
int y = (int) motionEvent.getY();
xcordview.setText("X : " + String.valueOf(x));
ycordview.setText("Y : " + String.valueOf(y));
areaDetected = false;
for (int i = 0; i < mainLayout.getChildCount(); i++) {
View currentButton = mainLayout.getChildAt(i);
if (currentButton instanceof Button) {
Button b = (Button) currentButton;
String tag = b.getTag().toString();
if (!pointInside(x, y, b.getLeft(), b.getRight(), b.getTop(), b.getBottom())) {
b.setText("");
// b.setBackgroundResource(getResources().getColor(android.R.color.black));
} else {
areaDetected = true;
if (!currentTag.equals(tag)) {
currentTag = tag;
stopPlaying();
b.setText(tag);
mp1 = getMediaPlayer(tag);
mp1.start();
// b.setBackgroundResource(getResources().getColor(android.R.color.white));
}
}
}
}
if (!areaDetected) {
currentTag = "";
stopPlaying();
}
myTag.setText("Current tag : " + currentTag);
return true;
}
});
}
private void stopPlaying() {
if (mp1 != null) {
mp1.stop();
mp1.release();
mp1 = null;
}
}
private MediaPlayer getMediaPlayer(String tag) {
if (tag.equals("b1")) {
return MediaPlayer.create(MyActivity.this, R.raw.coffee_and_snow);
}
return MediaPlayer.create(MyActivity.this, R.raw.coffee_and_snow2);
}
static boolean pointInside(int x, int y, int x1, int x2, int y1, int y2) {
return (x <= x2 && x >= x1 && y <= y2 && y >= y1);
}
}
和xml文件
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MyActivity">
<com.example.antoine.touchtest.MyButton
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:tag="b1" />
<com.example.antoine.touchtest.MyButton
android:id="@+id/b2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/b1"
android:tag="b2" />
<com.example.antoine.touchtest.MyButton
android:id="@+id/b3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/b2"
android:tag="b3" />
<com.example.antoine.touchtest.MyButton
android:id="@+id/b4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/b3"
android:tag="b4" />
<TextView
android:id="@+id/x_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/y_view"
android:text="X : " />
<TextView
android:id="@+id/tag"
android:layout_above="@+id/x_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Current tag : " />
<TextView
android:id="@+id/y_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Y : " />
</RelativeLayout>
最后是我的自定义按钮
我的按钮
public class MyButton extends Button {
public MyButton(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
public MyButton(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
public MyButton(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
// return super.onTouchEvent(event);
return false;
}
}
非常感谢这篇文章 ==> Get button coordinates and detect if finger is over them - Android