我想将设备中的图片添加到应用中。
我将使用David Manpearl的解决方案openImageIntent。
我的代码看起来不错，但是当我运行应用程序并在应用程序中选择图像时，问题是onActivityResult当我选择完图像时。请查看我的代码并告诉我我做错了什么。感谢任何建议。
更新信息：此片段是另一个片段的父级名称＆＃34; EventFragment＆＃34; 因为我使用了 FragmentTabHost < / em>在 EventFragment 中显示 EventAdd 类片段，我有 MainActivity 它＆＃39; sa ActionBarActivity这是应用程序启动时的主要活动。当我从MainActivity单击EventFragment菜单时，它将转到EventFragment，并在FragmentTabHost中将它添加到EventAdd中。我们来看看代码：
MainActivity：
public class MainActivity extends ActionBarActivity implements
NavigationDrawerFragment.NavigationDrawerCallbacks {
public static String Username;
/**
* Fragment managing the behaviors, interactions and presentation of the
* navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in
* {@link #restoreActionBar()}.
*/
private CharSequence mTitle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent myIntent = getIntent();
Username = myIntent.getStringExtra("username");
mNavigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager()
.findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
}
@Override
public void onNavigationDrawerItemSelected(int position) {
// update the main content by replacing fragments
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager
.beginTransaction()
.replace(R.id.container,
PlaceholderFragment.newInstance(position + 1)).commit();
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_sectionMain);
break;
case 2:
mTitle = getString(R.string.title_section1);
break;
case 3:
mTitle = getString(R.string.title_section2);
break;
case 4:
mTitle = getString(R.string.title_section3);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.main, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section number.
*/
public static Fragment newInstance(int sectionNumber) {
Fragment fragment = null;
switch(sectionNumber) {
default:
case 1:
fragment = new PlaceholderFragment();
break;
case 2:
fragment = new EventFragment();
break;
case 3:
//Fragment fragment = new MyFragment2();
break;
case 4:
//Fragment fragment = new MyFragment2();
break;
}
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(getArguments().getInt(
ARG_SECTION_NUMBER));
}
}
}
EventFragment：
public class EventFragment extends Fragment{
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
@Override
public void onDestroyView() {
// TODO Auto-generated method stub
super.onDestroyView();
mTabHost = null;
}
private FragmentTabHost mTabHost;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager(), R.layout.fragment_event);
mTabHost.addTab(mTabHost.newTabSpec("Tab1").setIndicator("รายการแจ้งเหตุ"),
EventListView.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Tab2").setIndicator("แจ้งเรื่องร้องเรียน"),EventAdd.class,null);
return mTabHost;
}
public EventFragment() {
// TODO Auto-generated constructor stub
}
}
EventAdd Class Fragment：
public class EventAdd extends Fragment {
private ArrayList<HashMap<String, String>> EventTypeList = null;
private Spinner spinnerET;
private List<String> spinnerETArray;
private static final int SELECT_PICTURE_REQUEST_CODE = 0;
private ImageView imageView;
private Bitmap photo;
private Uri outputFileUri;
private Button clearbtn;
private Button AEbtn;
private EditText name;
private EditText detail;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
final View rootView = inflater.inflate(R.layout.fragment_event_add, container, false);
SetGet sl = new SetGet();
EventTypeList = sl.getArrayListET();
spinnerET=(Spinner) rootView.findViewById(R.id.spinnerType);
name = (EditText) rootView.findViewById(R.id.EditTextName);
detail = (EditText) rootView.findViewById(R.id.editTextdetail);
spinnerETArray = new ArrayList<String>();
imageView = (ImageView)rootView.findViewById(R.id.imageView1);
Button photoButton = (Button) rootView.findViewById(R.id.cam_btn);
photoButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openImageIntent();
}
});
spinnerETArray.add("==เลือกประเภท==");
for (HashMap<String, String> map : EventTypeList){
for (Entry<String, String> mapEntry : map.entrySet())
{
if(mapEntry.getKey() == "event_type_name"){
spinnerETArray.add(mapEntry.getValue());
}
}
}
Log.d("spinnerETArray:",spinnerETArray.toString());
ArrayAdapter<String> adapter =new ArrayAdapter<String>(this.getContext(),android.R.layout.simple_spinner_item, spinnerETArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerET.setAdapter(adapter);
clearbtn = (Button) rootView.findViewById(R.id.Clearbtn);
clearbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clearInput();
}
});
AEbtn = (Button) rootView.findViewById(R.id.AEbtn);
AEbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent Mapint = new Intent(getActivity(), MapMarkPointActivity.class);
Mapint.putExtra("name", name.getText().toString());
Mapint.putExtra("detail", detail.getText().toString());
Mapint.putExtra("photo", photo);
String text = spinnerET.getSelectedItem().toString();
Integer typeId = null;
String CurrentText = "";
for (HashMap<String, String> map : EventTypeList){
for (Entry<String, String> mapEntry : map.entrySet())
{
if(mapEntry.getKey() == "event_type_name"){
CurrentText = mapEntry.getValue();
}else if(mapEntry.getKey() == "event_type_id" && CurrentText == text){
String id = mapEntry.getValue();
typeId = Integer.parseInt(id);
}
}
}
Mapint.putExtra("typeId", typeId);
startActivity(Mapint);
}
});
return rootView;
}
protected void clearInput() {
name.setText("");
detail.setText("");
spinnerET.setSelection(0);
photo = null;
imageView.setImageResource(R.drawable.ic_launcher);
}
private void openImageIntent(){
// Determine Uri of camera image to save.
final File root = new File(Environment.getExternalStorageDirectory() + File.separator + "MyDir" + File.separator);
root.mkdirs();
final String fname = "img_"+ System.currentTimeMillis() + ".jpg";
final File sdImageMainDirectory = new File(root, fname);
outputFileUri = Uri.fromFile(sdImageMainDirectory);
// Camera.
final List<Intent> cameraIntents = new ArrayList<Intent>();
final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
final PackageManager packageManager = getContext().getPackageManager();
final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
for(ResolveInfo res : listCam) {
final String packageName = res.activityInfo.packageName;
final Intent intent = new Intent(captureIntent);
intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
intent.setPackage(packageName);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
cameraIntents.add(intent);
}
// Filesystem.
final Intent galleryIntent = new Intent();
galleryIntent.setType("image/*");
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
// Chooser of filesystem options.
final Intent chooserIntent = Intent.createChooser(galleryIntent, "Select Source");
// Add the camera options.
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[cameraIntents.size()]));
try{
Log.d("startActivityForResult:","startActivityForResult");
getParentFragment().startActivityForResult(chooserIntent, SELECT_PICTURE_REQUEST_CODE);
}catch(Exception e){
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode,resultCode,data);
Log.d("onActivityResult:","onActivityResult");
if (resultCode == Activity.RESULT_OK) {
Log.d("OK:","ok");
if (requestCode == SELECT_PICTURE_REQUEST_CODE) {
final boolean isCamera;
if (data == null) {
isCamera = true;
} else {
final String action = data.getAction();
if (action == null) {
isCamera = false;
} else {
isCamera = action.equals(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
}
}
Uri selectedImageUri;
if (isCamera) {
selectedImageUri = outputFileUri;
} else {
selectedImageUri = data == null ? null : data.getData();
}
Log.d("รูป:",selectedImageUri.toString());
try {
photo = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), selectedImageUri);
Log.d("รูป:",photo.toString());
imageView.setImageBitmap(photo);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}else{
Log.d("Error:",data.toString());
}
}
public EventAdd() {
super();
// TODO Auto-generated constructor stub
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}
}
答案 0 :(得分：0)
在您的主机活动（MainActivity.java）中，您需要执行以下操作：
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
}