Android仿微信选择图片和拍照功能

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {   ActivityCompat.requestPermissions((Activity) this,     new String[] { Manifest.permission.CAMERA, Manifest.permission.READ_EXTERNAL_STORAGE},     REQUEST_STORAGE_READ_ACCESS_PERMISSION);  }

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" android:background="#181819" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v7.widget.Toolbar  android:id="@+id/toolbar"  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:background="@color/mis_actionbar_color"  app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"  android:minHeight="?android:attr/actionBarSize">  <Button   android:id="@+id/commit"   android:background="@drawable/mis_action_btn"   android:minHeight="1dp"   android:minWidth="1dp"   android:layout_marginRight="16dp"   android:paddingLeft="10dp"   android:paddingRight="10dp"   android:paddingTop="5dp"   android:paddingBottom="5dp"   android:textColor="@color/mis_default_text_color"   android:textSize="14sp"   android:layout_gravity="right"   android:layout_width="wrap_content"   android:layout_height="wrap_content" /> </android.support.v7.widget.Toolbar> <FrameLayout  android:id="@+id/image_grid"  android:layout_width="match_parent"  android:layout_height="match_parent" /></LinearLayout>

   getSupportFragmentManager().beginTransaction()     .add(R.id.image_grid, Fragment.instantiate(this, MultiImageSelectorFragment.class.getName(), bundle))     .commit();

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:background="@android:color/black" android:layout_width="match_parent" android:layout_height="match_parent"> <GridView  android:id="@+id/grid"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:horizontalSpacing="@dimen/mis_space_size"  android:verticalSpacing="@dimen/mis_space_size"  android:paddingBottom="?android:attr/actionBarSize"  android:clipToPadding="false"  android:numColumns="3"/> <RelativeLayout  android:clickable="true"  android:id="@+id/footer"  android:background="#cc000000"  android:layout_alignParentBottom="true"  android:layout_width="match_parent"  android:layout_height="?android:attr/actionBarSize">  <Button   android:id="@+id/category_btn"   android:paddingLeft="16dp"   android:paddingRight="16dp"   android:layout_centerVertical="true"   android:textColor="@color/mis_folder_text_color"   tools:text="所有图片"   android:textSize="16sp"   android:gravity="center_vertical"   android:drawableRight="@drawable/mis_text_indicator"   android:drawablePadding="5dp"   android:background="@null"   android:singleLine="true"   android:ellipsize="end"   android:layout_width="wrap_content"   android:layout_height="match_parent" />  </RelativeLayout></RelativeLayout>

 mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {   @Override   public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {    if (mImageAdapter.isShowCamera()) {     if (i == 0) {      showCameraAction();     } else {      Image image = (Image) adapterView.getAdapter().getItem(i);      selectImageFromGrid(image, mode);     }    } else {     Image image = (Image) adapterView.getAdapter().getItem(i);     selectImageFromGrid(image, mode);    }   }  });

 /**  * Open camera  */ private void showCameraAction() {  if(ContextCompat.checkSelfPermission(getContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE)    != PackageManager.PERMISSION_GRANTED){   requestPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE,     getString(R.string.mis_permission_rationale_write_storage),     REQUEST_STORAGE_WRITE_ACCESS_PERMISSION);  }else {   Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);   if (intent.resolveActivity(getActivity().getPackageManager()) != null) {    try {     mTmpFile = FileUtils.createTmpFile(getActivity());    } catch (IOException e) {     e.printStackTrace();    }    if (mTmpFile != null && mTmpFile.exists()) {     intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(mTmpFile));     startActivityForResult(intent, REQUEST_CAMERA);    } else {     Toast.makeText(getActivity(), R.string.mis_error_image_not_exist, Toast.LENGTH_SHORT).show();    }   } else {    Toast.makeText(getActivity(), R.string.mis_msg_no_camera, Toast.LENGTH_SHORT).show();   }  } }

 /**  * notify callback  * @param image image data  */ private void selectImageFromGrid(Image image, int mode) {  if(image != null) {   if(mode == MODE_MULTI) {    if (resultList.contains(image.path)) {     resultList.remove(image.path);     if (mCallback != null) {      mCallback.onImageUnselected(image.path);     }    } else {     if(selectImageCount() == resultList.size()){      Toast.makeText(getActivity(), R.string.mis_msg_amount_limit, Toast.LENGTH_SHORT).show();      return;     }     resultList.add(image.path);     if (mCallback != null) {      mCallback.onImageSelected(image.path);     }    }    mImageAdapter.select(image);   }else if(mode == MODE_SINGLE){    if(mCallback != null){     mCallback.onSingleImageSelected(image.path);    }   }  } }