我是新手编码,现在创建一个Android应用程序,在视频选项卡/列表下有一些视频,我的问题是如何在长按a时添加删除(带通知),共享,取消按钮我要删除的特定视频(来自内部存储)?用例子指导我。在全新的这个:)
的minSdkVersion = “11” targetSdkVersion = “25”
搜索但未找到任何适当的答案,但是..
渴望学习:(
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
switch(item.getItemId()) {
case R.id.deletevideo:
// add stuff here
return true;
case R.id.sharevideo:
// edit stuff here
return true;
case R.id.cancelvideo:
// remove stuff here
return true;K
default:
return super.onContextItemSelected(item);
}
}
}
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity" >
<item
android:id="@+id/deletevideo"
android:icon="@android:drawable/ic_menu_add"
android:title="@string/video_delete"/>
<item
android:id="@+id/sharevideo"
android:icon="@android:drawable/ic_menu_edit"
android:title="@string/video_share"/>
<item
android:id="@+id/cancelvideo"
android:title="@string/video_Cancel"/>
</menu>
答案 0 :(得分:1)
您所要做的就是添加contextListener:
Java文件
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_list, menu);
return true;
}
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
switch(item.getItemId()) {
case R.id.add:
// add stuff here
return true;
case R.id.edit:
// edit stuff here
return true;
case R.id.delete:
// remove stuff here
return true;
default:
return super.onContextItemSelected(item);
}
}
XML文件
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/add"
android:icon="@android:drawable/ic_menu_add"
android:title="@string/menu_delete" />
<item android:id="@+id/edit"
android:icon="@android:drawable/ic_menu_edit"
android:title="@string/menu_share" />
<item android:id="@+id/delete"
android:icon="@android:drawable/my_icon_delete"
android:title="@string/menu_cancle" />
</menu>