[英]How to pass Activity to newInstance in Fragment
How to pass Activity to newInstance in Fragment 如何将Activity传递给Fragment中的newInstance
I want to pass ActivityA to newInstance in DialogFragmentA 我想将ActivityA传递给DialogFragmentA中的newInstance
because I want to call method in Activity A when user Click button in DialogFragmentA 因为我想在用户单击DialogFragmentA中的按钮时在活动A中调用方法
How to set it? 如何设置?
thanks! 谢谢!
public static DialogFragmentA newInstance(int radius,
float downScaleFactor) {
SampleDialogFragment fragment = new SampleDialogFragment();
Bundle args = new Bundle();
args.putInt(
BUNDLE_KEY_BLUR_RADIUS,
radius
);
args.putFloat(
BUNDLE_KEY_DOWN_SCALE_FACTOR,
downScaleFactor
);
fragment.setArguments(args);
return fragment;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
Bundle args = getArguments();
mRadius = args.getInt(BUNDLE_KEY_BLUR_RADIUS);
mDownScaleFactor = args.getFloat(BUNDLE_KEY_DOWN_SCALE_FACTOR);
}
and My Activity 和我的活动
switch(view.getId()){
case R.id.btn_submit:
DialogFragmentA fragment = DialogFragmentA.newInstance(2,15);
fragment.show(getSupportFragmentManager(),"blur_sample");
break;
}
public void submitRegister(){ //I want to call this method when user click button in DialogFragmentA
Toast.makeText(getApplicationContext(),"submitRegister",Toast.LENGTH_SHORT).show();
}
((MainActivity) getActivity()).doMethod()
如果您知道您正在使用什么活动,就应该做到这一点!
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