[英]Showing Toast when clicking on textview
In this example, I am trying to click on each of the 2 text views (mLayout1 and mLayout2)
, and a toast will show up. 在此示例中,我尝试单击2个文本视图
(mLayout1 and mLayout2)
,然后将显示一个祝酒词。 The code compiles with no error, but when running there is no toast showing up. 该代码编译没有错误,但是运行时没有显示吐司。
Here is my code: 这是我的代码:
public class MainActivity extends ActionBarActivity {
private TextView mLayout1, mLayout2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.activity_main,
mLayout1 = (TextView) view.findViewById(R.id.item_1a);
mLayout1.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(),"mLayout1 clicked",Toast.LENGTH_SHORT).show();
}
});
mLayout2 = (TextView) view.findViewById(R.id.item_1b);
mLayout2.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(),"mLayout2 clicked",Toast.LENGTH_SHORT).show();
}
});
return view;
}
}
and here is my xml: 这是我的xml:
<RelativeLayout 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: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="com.example.transitionexample.MainActivity" >
<TextView
android:id="@+id/item_1a"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Item 1a"
android:background="@color/green"
android:gravity="center"/>
<TextView
android:id="@+id/item_1b"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="74dp"
android:gravity="center"
android:background="@color/opaque_red"
android:text="Item 1b" />
</RelativeLayout>
Try this: 尝试这个:
android:clickable="true"
: :
<TextView
android:clickable="true"
android:id="@+id/item_1a"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Item 1a"
android:background="@color/green"
android:gravity="center"/>
您的onCreateView永远不会被调用-这不是一个片段-添加@Override注解,您将看到...
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