无法解析方法';show(android.support.v4.app.FragmentTransaction,java.lang.String)和#x27;
我正在尝试创建一个带有查看寻呼机的图像库。但是我得到一个错误,说无法解析无法解析方法';show(android.support.v4.app.FragmentTransaction,java.lang.String)和#x27;,java,android,android-viewpager,image-gallery,fragmenttransaction,Java,Android,Android Viewpager,Image Gallery,Fragmenttransaction,我正在尝试创建一个带有查看寻呼机的图像库。但是我得到一个错误,说无法解析newFragment.show(ft,“slideshow”)的方法show(android.support.v4.app.FragmentTransaction,java.lang.String)我读过与FragmentManager相关的类似问题,但这些问题对我帮助不大,因为我是一个新手,我使用的是FragmentTransaction而不是FragmentManager。有人能帮我修一下吗 import androi
newFragment.show(ft,“slideshow”)的方法show(android.support.v4.app.FragmentTransaction,java.lang.String)
代码>我读过与FragmentManager相关的类似问题,但这些问题对我帮助不大,因为我是一个新手,我使用的是FragmentTransaction而不是FragmentManager。有人能帮我修一下吗
import android.app.Fragment;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private String TAG = MainActivity.class.getSimpleName();
private static final String endpoint = "http://demos.vetbossel.in/ajson/image.json";
private ArrayList<Image1> images;
private ProgressDialog pDialog;
private GalleryAdapter mAdapter;
private RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
pDialog = new ProgressDialog(this);
images = new ArrayList<>();
mAdapter = new GalleryAdapter(getApplicationContext(), images);
RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(getApplicationContext(), 2);
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(mAdapter);
recyclerView.addOnItemTouchListener(new GalleryAdapter.RecyclerTouchListener(getApplicationContext(), recyclerView, new GalleryAdapter.ClickListener() {
@Override
public void onClick(View view, int position) {
Bundle bundle = new Bundle();
bundle.putSerializable("images", images);
bundle.putInt("position", position);
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
SlideshowDialogFragment newFragment = SlideshowDialogFragment.newInstance();
newFragment.setArguments(bundle);
newFragment.show(ft,"tag");
}
@Override
public void onLongClick(View view, int position) {
}
}));
fetchImages();
}
private void fetchImages() {
pDialog.setMessage("Loading Images...");
pDialog.show();
JsonArrayRequest req = new JsonArrayRequest(endpoint,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
pDialog.hide();
images.clear();
for (int i = 0; i < response.length(); i++) {
try {
JSONObject object = response.getJSONObject(i);
Image1 image = new Image1();
JSONObject url = object.getJSONObject("url");
image.setSmall(url.getString("small"));
image.setMedium(url.getString("medium"));
image.setLarge(url.getString("large"));
images.add(image);
} catch (JSONException e) {
Log.e(TAG, "Json parsing error: " + e.getMessage());
}
}
mAdapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Error: " + error.getMessage());
pDialog.hide();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req);
}
}
导入android.app.Fragment;
导入android.app.ProgressDialog;
导入android.os.Bundle;
导入android.support.v4.app.FragmentManager;
导入android.support.v4.app.FragmentTransaction;
导入android.support.v7.app.AppActivity;
导入android.support.v7.widget.Toolbar;
导入android.util.Log;
导入android.view.view;
导入org.json.JSONArray;
导入org.json.JSONException;
导入org.json.JSONObject;
导入android.support.v7.widget.DefaultItemAnimator;
导入android.support.v7.widget.GridLayoutManager;
导入android.support.v7.widget.RecyclerView;
导入com.android.volley.Response;
导入com.android.volley.VolleyError;
导入com.android.volley.toolbox.JsonArrayRequest;
导入java.util.ArrayList;
公共类MainActivity扩展了AppCompatActivity{
私有字符串标记=MainActivity.class.getSimpleName();
私有静态最终字符串终结点=”http://demos.vetbossel.in/ajson/image.json";
私有数组列表图像;
私人对话;
私人厨房适配器;
私人回收站;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar Toolbar=(Toolbar)findViewById(R.id.Toolbar);
设置支持操作栏(工具栏);
recyclerView=(recyclerView)findViewById(R.id.recycler\u视图);
pDialog=新建进度对话框(此对话框);
images=newarraylist();
mAdapter=newGalleryAdapter(getApplicationContext(),images);
RecycleView.LayoutManager mLayoutManager=新的GridLayoutManager(getApplicationContext(),2);
recyclerView.setLayoutManager(mLayoutManager);
setItemAnimator(新的DefaultItemAnimator());
recyclerView.setAdapter(mAdapter);
recyclerView.addOnItemTouchListener(新GalleryAdapter.RecyclerTouchListener(getApplicationContext(),recyclerView,新GalleryAdapter.ClickListener()){
@凌驾
公共void onClick(视图,int位置){
Bundle=新Bundle();
bundle.putSerializable(“图像”,图像);
bundle.putInt(“位置”,位置);
FragmentTransaction ft=getSupportFragmentManager().beginTransaction();
SlideshowDialogFragment newFragment=SlideshowDialogFragment.newInstance();
setArguments(bundle);
newFragment.show(英尺,“标签”);
}
@凌驾
仅长按公共无效(视图,int位置){
}
}));
获取图像();
}
私有void fetchImages(){
setMessage(“正在加载图像…”);
pDialog.show();
JsonArrayRequest req=新的JsonArrayRequest(端点,
新的Response.Listener(){
@凌驾
公共void onResponse(JSONArray响应){
Log.d(TAG,response.toString());
pDialog.hide();
图像。清除();
对于(int i=0;i
像这样尝试
Fragment fragment = new SlideshowDialogFragment();
FragmentManager fm =getActivity().getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.content_frame, fragment);
ft.commit();
Bundle bundle = new Bundle();
bundle.putSerializable("images", images);
bundle.putInt("position", position);
fragment.setArguments(bundle);
像这样尝试
Fragment fragment = new SlideshowDialogFragment();
FragmentManager fm =getActivity().getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.content_frame, fragment);
ft.commit();
Bundle bundle = new Bundle();
bundle.putSerializable("images", images);
bundle.putInt("position", position);
fragment.setArguments(bundle);
你班上最优秀的学生是什么?你应该导入
android.support.v4.app.Fragment
和android.support.v4.app.FragmentTransaction代码>像这样:
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
你班上最优秀的学生是什么?你应该导入
android.support.v4.app.Fragment
和android.support.v4.app.FragmentTransaction代码>像这样:
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
实际上,问题出在您的SlideshowDialogFragment
类中。在Android中有两个DialogFragment
android.support.v4.app.DialogFragment
android.app.DialogFragment
由于SlideshowDialogFragment类扩展了第二个类,所以不能使用android.support.v4.app.FragmentTransaction
解决方案是转到SlideshowDialogFragment
类并替换导入android.app.DialogFragment
byimport android.support.v4.app.DialogFragment代码>。现在一切都会好起来。实际上问题出在您的SlideshowDialogFragment
类中。在Android中