线性布局的触摸事件会弹出多个屏幕。似乎对于线性布局的每个子元素,ontouch 事件都会被触发两次。我怎样才能防止它发射两次。在相同线性布局的点击事件上,线性布局 onclick 事件将在第二次点击时触发,而不是在第一次点击时触发。我不明白我哪里出错了。请帮忙。
-- XML
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="horizontal"
android:weightSum="1.0" >
<LinearLayout
android:id="@+id/layout_button_sub"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/Home.Item.Spacing.Vertical"
android:layout_marginLeft="@dimen/Home.Item.Spacing.Horizontal"
android:layout_marginRight="@dimen/Home.Item.Spacing.Horizontal"
android:layout_marginTop="@dimen/Home.Item.Spacing.Vertical"
android:layout_weight="0.5"
android:background="@drawable/bg_home_item"
android:clickable="true"
android:descendantFocusability="blocksDescendants"
android:focusable="true"
android:focusableInTouchMode="true"
android:inputType="none" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:duplicateParentState="false"
android:focusableInTouchMode="false"
android:src="@drawable/ic_subs" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:duplicateParentState="false"
android:focusableInTouchMode="false"
android:gravity="right"
android:inputType="none"
android:text="Subscriptions"
android:textColor="@color/White"
android:textSize="@dimen/Normal.Text.Size" />
</LinearLayout>
<LinearLayout
android:id="@+id/layout_button_find"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/Home.Item.Spacing.Vertical"
android:layout_marginLeft="@dimen/Home.Item.Spacing.Horizontal"
android:layout_marginRight="@dimen/Home.Item.Spacing.Horizontal"
android:layout_marginTop="@dimen/Home.Item.Spacing.Vertical"
android:layout_weight="0.5"
android:background="@drawable/bg_home_item"
android:clickable="true"
android:descendantFocusability="blocksDescendants"
android:focusable="true"
android:focusableInTouchMode="true"
android:inputType="none">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:duplicateParentState="false"
android:focusableInTouchMode="false"
android:src="@drawable/ic_find" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:duplicateParentState="false"
android:focusableInTouchMode="false"
android:gravity="right"
android:inputType="none"
android:text="Find Nearby"
android:textColor="@color/White"
android:textSize="@dimen/Normal.Text.Size" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</ScrollView>
-- Oncreate 方法上的活动
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_main);
linearLayoutSubs = (LinearLayout)findViewById(R.id.layout_button_sub);
linearLayoutFind = (LinearLayout)findViewById(R.id.layout_button_find);
linearLayoutSubs.setOnTouchListener(new mOnTouchListener());
linearLayoutFind.setOnTouchListener(new mOnTouchListener());
}
-- onTouch 监听器
public class mOnTouchListener implements OnTouchListener {
Intent intent = null;
@Override
public boolean onTouch(View v, MotionEvent event) {
switch(v.getId()) {
case R.id.layout_button_subscriptions:
intent = new Intent(AppActivity.this, Subs.class);//class for navigation
break;
case R.id.layout_button_find_nearby:
intent = new Intent(AppActivity.this, Find.class);//class for navigation
break;
}
if(intent != null) {
startActivity(intent);
}
return true;
}
}