是否有可能在条件为真时膨胀 android 菜单,我希望有可能,如果是这样,这是我的错误代码,我在条件检查中的错误是什么
以及在条件检查失败的情况下必须将条件检查代码放置在何处以阻止菜单膨胀
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.bar, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item){
AlertDialog.Builder builder=new AlertDialog.Builder(this);
builder.setTitle("Pick An Image")
.setMessage("Please select Image One or Image Two:")
.setCancelable(false)
.setPositiveButton("IMAGE 1", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface Dialog,int id){
//image.setImageResource(R.drawable.image1);
}
})
.setNeutralButton("IMAGE 3",new DialogInterface.OnClickListener(){
public void onClick(DialogInterface Dialog,int id){
//image.setImageResource(R.drawable.icon);
}
})
.setNegativeButton("Image 2", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog,int id){
//image.setImageResource(R.drawable.image2);
}
});
Spinner spinner1=(Spinner)findViewById(R.id.spinner1);
Spinner spinner2=(Spinner)findViewById(R.id.spinner2);
int dim1=spinner1.getSelectedItemPosition();
int dim2=spinner2.getSelectedItemPosition();
if(dim1==dim2)
{
Toast.makeText(null, "your source and destination are same", Toast.LENGTH_SHORT).show();
}
else
{
switch(item.getItemId()){
case R.id.buttonone:
builder.show();
return true;
case R.id.buttontwo:
builder.show();
return true;
case R.id.buttonthree:
builder.show();
return true;
case R.id.buttonfour:
builder.show();
return true;
case R.id.buttonfive:
builder.show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
return super.onOptionsItemSelected(item);
}
在哪一行我做条件检查我可以在条件失败时阻止菜单膨胀..