在Fragment中也可以获得返回的数据,通过在方法OnActivityResult中
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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.supportv4.app;
import com.example.android.supportv4.app.SendResult;
import com.example.android.supportv4.R;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.TextView;
public class FragmentReceiveResultSupport extends FragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
FrameLayout frame = new FrameLayout(this);
frame.setId(R.id.simple_fragment);
setContentView(frame, lp);
if (savedInstanceState == null) {
// Do first time initialization -- add fragment.
Fragment newFragment = new ReceiveResultFragment();
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.simple_fragment, newFragment).commit();
}
}
public static class ReceiveResultFragment extends Fragment {
// Definition of the one requestCode we use for receiving resuls.
static final private int GET_CODE = 0;
private TextView mResults;
private OnClickListener mGetListener = new OnClickListener() {
public void onClick(View v) {
// Start the activity whose result we want to retrieve. The
// result will come back with request code GET_CODE.
Intent intent = new Intent(getActivity(), SendResult.class);
startActivityForResult(intent, GET_CODE);
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.receive_result, container, false);
// Retrieve the TextView widget that will display results.
mResults = (TextView)v.findViewById(R.id.results);
// This allows us to later extend the text buffer.
mResults.setText(mResults.getText(), TextView.BufferType.EDITABLE);
// Watch for button clicks.
Button getButton = (Button)v.findViewById(R.id.get);
getButton.setOnClickListener(mGetListener);
return v;
}
/**
* This method is called when the sending activity has finished, with the
* result it supplied.
*/
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// You can use the requestCode to select between multiple child
// activities you may have started. Here there is only one thing
// we launch.
if (requestCode == GET_CODE) {
// We will be adding to our text.
Editable text = (Editable)mResults.getText();
// This is a standard resultCode that is sent back if the
// activity doesn't supply an explicit result. It will also
// be returned if the activity failed to launch.
if (resultCode == RESULT_CANCELED) {
text.append("(cancelled)");
// Our protocol with the sending activity is that it will send
// text in 'data' as its result.
} else {
text.append("(okay ");
text.append(Integer.toString(resultCode));
text.append(") ");
if (data != null) {
text.append(data.getAction());
}
}
text.append("\n");
}
}
}
}
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.supportv4.app;
import com.example.android.supportv4.app.SendResult;
import com.example.android.supportv4.R;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.TextView;
public class FragmentReceiveResultSupport extends FragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
FrameLayout frame = new FrameLayout(this);
frame.setId(R.id.simple_fragment);
setContentView(frame, lp);
if (savedInstanceState == null) {
// Do first time initialization -- add fragment.
Fragment newFragment = new ReceiveResultFragment();
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.simple_fragment, newFragment).commit();
}
}
public static class ReceiveResultFragment extends Fragment {
// Definition of the one requestCode we use for receiving resuls.
static final private int GET_CODE = 0;
private TextView mResults;
private OnClickListener mGetListener = new OnClickListener() {
public void onClick(View v) {
// Start the activity whose result we want to retrieve. The
// result will come back with request code GET_CODE.
Intent intent = new Intent(getActivity(), SendResult.class);
startActivityForResult(intent, GET_CODE);
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.receive_result, container, false);
// Retrieve the TextView widget that will display results.
mResults = (TextView)v.findViewById(R.id.results);
// This allows us to later extend the text buffer.
mResults.setText(mResults.getText(), TextView.BufferType.EDITABLE);
// Watch for button clicks.
Button getButton = (Button)v.findViewById(R.id.get);
getButton.setOnClickListener(mGetListener);
return v;
}
/**
* This method is called when the sending activity has finished, with the
* result it supplied.
*/
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// You can use the requestCode to select between multiple child
// activities you may have started. Here there is only one thing
// we launch.
if (requestCode == GET_CODE) {
// We will be adding to our text.
Editable text = (Editable)mResults.getText();
// This is a standard resultCode that is sent back if the
// activity doesn't supply an explicit result. It will also
// be returned if the activity failed to launch.
if (resultCode == RESULT_CANCELED) {
text.append("(cancelled)");
// Our protocol with the sending activity is that it will send
// text in 'data' as its result.
} else {
text.append("(okay ");
text.append(Integer.toString(resultCode));
text.append(") ");
if (data != null) {
text.append(data.getAction());
}
}
text.append("\n");
}
}
}
}
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