当我在另一个布局上设置内容视图时，它可以很好地工作，但是当我将内容视图设置回主布局时，它会崩溃。
我的主要课程及其中的一切。一切都发生在public void firstTime（）。
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private MapFragment mapsFragment;
static MainActivity can;
static FloatingActionButton fab;
static FloatingActionButton show;
private String encoded_string;
private Bitmap bitmap;
private String picturePath;
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
private GoogleApiClient client;
private void initializeMapsFragment() {
FragmentTransaction mTransaction = getSupportFragmentManager().beginTransaction();
mapsFragment = new MapFragment();
SupportMapFragment supportMapFragment = mapsFragment;
mTransaction.add(R.id.map, supportMapFragment);
mTransaction.commit();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("--***** MAP ", "::Loading Map");
can = this;
setContentView(R.layout.activity_main);
initializeMapsFragment();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
fab = (FloatingActionButton) findViewById(R.id.fab);
show = (FloatingActionButton) findViewById(R.id.show);
show.hide();
fab.hide();
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
callPopup();
}
});
show.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
stats();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
Button searchButton = (Button) findViewById(R.id.searchButton);
searchButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
EditText searchView = (EditText) findViewById(R.id.searchView1);
String text = searchView.getText().toString();
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input
// text
addresses = geocoder.getFromLocationName(text, 3);
if (addresses != null && !addresses.equals(""))
search(addresses);
} catch (Exception e) {
}
}
});
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
protected void search(List<Address> addresses) {
Address address = (Address) addresses.get(0);
LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
MapFragment.mapView.moveCamera(CameraUpdateFactory.newLatLng(latLng));
MapFragment.mapView.animateCamera(CameraUpdateFactory.zoomTo(15));
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
FragmentManager fm = getFragmentManager();
android.support.v4.app.FragmentManager sFm = getSupportFragmentManager();
int id = item.getItemId();
if (id == R.id.nav_camera) {
if (!mapsFragment.isAdded())
sFm.beginTransaction().add(R.id.map, mapsFragment).commit();
else
sFm.beginTransaction().show(mapsFragment).commit();
} else if (id == R.id.nav_share) {
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareBody = "Check this app out --> link.kys";
sharingIntent.putExtra(Intent.EXTRA_SUBJECT, "Best Free Parking app");
sharingIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public void firstTime() {
setContentView(R.layout.firsttime);
(findViewById(R.id.cancelBut))
.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
setContentView(R.layout.activity_main);
}
});
}
public static void load(){
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(can);
if (!prefs.getBoolean("firstTime", false)) {
can.firstTime();
//SharedPreferences.Editor editor = prefs.edit();
//editor.putBoolean("firstTime", true);
//editor.commit();
}
}
private void stats() {
setContentView(R.layout.stats);
RatingBar ratingbar = (RatingBar) findViewById(R.id.ratingBar);
ratingbar.setRating((float) 2.0);
ratingbar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
ratingBar.setRating((float) 2.0);
}
});
((Button) findViewById(R.id.cancBut)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
setContentView(R.layout.content_main);
}
});
}
private void callPopup() {
final PopupWindow popupWindow;
LayoutInflater layoutInflater = (LayoutInflater) getBaseContext()
.getSystemService(LAYOUT_INFLATER_SERVICE);
View popupView = layoutInflater.inflate(R.layout.popup, null);
popupWindow = new PopupWindow(popupView,
DrawerLayout.LayoutParams.WRAP_CONTENT, DrawerLayout.LayoutParams.MATCH_PARENT,
true);
popupWindow.setTouchable(true);
popupWindow.setFocusable(true);
popupWindow.showAtLocation(popupView, Gravity.CENTER, 0, 0);
final EditText name = (EditText) popupView.findViewById(R.id.edtimageName);
((Button) popupView.findViewById(R.id.plcBut)).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
selectPhoto();
}
});
((Button) popupView.findViewById(R.id.saveBtn))
.setOnClickListener(new View.OnClickListener() {
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public void onClick(View arg0) {
new Encode_image().execute();
popupWindow.dismiss();
}
});
((Button) popupView.findViewById(R.id.cancelbtutton))
.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
popupWindow.dismiss();
}
});
}
private void selectPhoto() {
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 10);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 10 && resultCode == RESULT_OK) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
picturePath = cursor.getString(columnIndex);
cursor.close();
}
}
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
public Action getIndexApiAction() {
Thing object = new Thing.Builder()
.setName("Main Page") // TODO: Define a title for the content shown.
// TODO: Make sure this auto-generated URL is correct.
.setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))
.build();
return new Action.Builder(Action.TYPE_VIEW)
.setObject(object)
.setActionStatus(Action.STATUS_TYPE_COMPLETED)
.build();
}
@Override
public void onStart() {
super.onStart();
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client.connect();
AppIndex.AppIndexApi.start(client, getIndexApiAction());
}
@Override
public void onStop() {
super.onStop();
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
AppIndex.AppIndexApi.end(client, getIndexApiAction());
client.disconnect();
}
private class Encode_image extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... voids) {
bitmap = BitmapFactory.decodeFile(picturePath);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
bitmap.recycle();
byte[] array = stream.toByteArray();
encoded_string = Base64.encodeToString(array, 0);
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
makeRequest();
}
}
private void makeRequest() {
RequestQueue requestQueue = Volley.newRequestQueue(this);
StringRequest request = new StringRequest(Request.Method.POST, "http://185.80.129.86/upload.php",
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> map = new HashMap<>();
map.put("encoded_string", encoded_string);
map.put("image_name", "testing123.jpg");
return map;
}
};
requestQueue.add(request);
}
}
错误：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.robertas.parking.bestfreeparking, PID: 3501
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:3936)
at android.view.ViewGroup.addView(ViewGroup.java:3786)
at android.view.ViewGroup.addView(ViewGroup.java:3758)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:810)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:143)
at com.robertas.parking.bestfreeparking.MainActivity$4.onClick(MainActivity.java:245)
at android.view.View.performClick(View.java:4780)
at android.view.View$PerformClick.run(View.java:19866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
答案 0 :(得分：1)
进行更改
D/cocos2d-x debug info: {
gl.supports_OES_packed_depth_stencil: true
gl.supports_vertex_array_object: false
gl.supports_BGRA8888: false
gl.supports_ATITC: false
gl.supports_S3TC: false
cocos2d.x.version: cocos2d-x-3.14.1
gl.supports_discard_framebuffer: false
cocos2d.x.compiled_with_profiler: false
gl.supports_PVRTC: false
cocos2d.x.build_type: DEBUG
gl.renderer: Android Emulator OpenGL ES Translator (NVIDIA GeForce 9400M OpenGL Engine)
gl.supports_OES_depth24: true
gl.supports_ETC1: true
gl.supports_OES_map_buffer: false
cocos2d.x.compiled_with_gl_state_cache: true
gl.version: OpenGL ES 2.0 (2.1 NVIDIA-10.0.51 310.90.10.05b12)
gl.supports_NPOT: true
gl.max_texture_units: 16
gl.vendor: Google (NVIDIA Corporation)
gl.max_texture_size: 8192
}
D/cocos2d-x debug info: create rendererRecreatedListener for GLProgramState
D/cocos2d-x debug info: create rendererRecreatedListener for GLProgramState
D/cocos2d-x debug info: create rendererRecreatedListener for GLProgramState
D/cocos2d-x debug info: create rendererRecreatedListener for GLProgramState
A/libc: Fatal signal 11 (SIGSEGV) at 0x00000000 (code=128), thread 1352 (Thread-88)