如何调用一个片段的方法,从Android中另一个片段类 [英] how to call method of one fragment from another fragment class in android
问题描述
我要打电话FragmentB(级)从碎裂的方法我试图通过fragmentb的对象碎裂(类),但它不工作
这里是在这个类中我有过,我会打电话给FragmentB类的方法的方法碎裂的code
adddata.setOnClickListener(
新View.OnClickListener(){
@覆盖
公共无效的onClick(视图v){
布尔isInserted = myDb.addalldata(monthly_income.getText()。的toString()
room_rent.getText()。的toString()
。mess_rent.getText()的toString());
如果(isInserted =真)
Toast.makeText(getActivity()getBaseContext(),插入数据,Toast.LENGTH_LONG).show();
其他
Toast.makeText(getActivity()getBaseContext(),数据不插入,Toast.LENGTH_LONG).show();
}
}
);
我要打电话fragmentB这个方法
公共无效显示(){
光标解析度= myDb.getAllData();
StringBuffer的缓冲区=新的StringBuffer();
而(res.moveToNext()){
displayresult.setText(buffer.append(res.getString(1)));
}
}
我试图通过编写碎裂的方法这个code,但我得到的错误
碎裂片段=
(碎裂)getSupportFragmentManager()findFragmentById(R.id.pageview2)。
((碎裂)片段).show();
试试这个
((FragmentA)getActivity().getSupportFragmentManager().findFragmentById(R.id.pageview2)).show();
I want to call a method of FragmentB (Class) from a fragmentA I tried by making a object of fragmentb in fragmentA (class) but it's not working here is the code of fragmentA in this class I have a method through which I will call the method of FragmentB class
adddata.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
boolean isInserted = myDb.addalldata(monthly_income.getText().toString(),
room_rent.getText().toString(),
mess_rent.getText().toString());
if (isInserted = true)
Toast.makeText(getActivity().getBaseContext(), "Data Inserted", Toast.LENGTH_LONG).show();
else
Toast.makeText(getActivity().getBaseContext(), "Data not Inserted", Toast.LENGTH_LONG).show();
}
}
);
I want to call this method of fragmentB
public void show() {
Cursor res = myDb.getAllData();
StringBuffer buffer = new StringBuffer();
while (res.moveToNext()) {
displayresult.setText( buffer.append( res.getString(1)));
}
}
I tried by writing this code in method of fragmentA but am getting error
FragmentA fragment=
(FragmentA)getSupportFragmentManager().findFragmentById(R.id.pageview2);
((FragmentA)fragment).show();
Try This
((FragmentA)getActivity().getSupportFragmentManager().findFragmentById(R.id.pageview2)).show();
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