嗨，我对 Android 有点陌生，我正在开发一个代码来显示和映射一些标记。我使用了 2 个按钮，一个用于查看地图，另一个用于添加信息。问题是我第一次点击显示地图时，它会显示，但是当我回到“主菜单”并再次点击显示地图时，只是出现黑屏并显示此错误：
android.view.inflateException: Binary XML file line #11: Error inflating class fragment
我正在使用 API 16，如果我没记错的话，我应该像现在一样使用 MapFragmet，而不是扩展 Fragment，因为它在旧版本中使用，不是吗？
我的 XML：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<fragment
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment" />
<ImageView
android:id="@+id/logo"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignRight="@+id/map"
android:layout_alignTop="@+id/map"
android:contentDescription="@string/hintlogo"
android:src="@drawable/logo" />
</RelativeLayout>
我的清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="uri.br.rs"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="16" />
<!-- Permissão para exibir o mapa -->
<permission
android:name="uri.br.rs.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="uri.br.rs.permission.MAPS_RECEIVE"/>
<!-- Permissão para interner, entre outros -->
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<!-- Estas permissões não são necessárias para usar o
Google Maps Android API v2, mas são recomendadas. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<!-- Permissão para usar o OpenGL -->
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<application
android:allowBackup="true"
android:icon="@drawable/logo"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<!-- Chave do Google Maps Android, registrada no site do Google APIs -->
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="some_key"/>
<activity
android:name="uri.br.rs.TudoImoveis"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
我的班级名为 TudoImoveis：
package uri.br.rs;
import java.util.ArrayList;
import java.util.List;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class TudoImoveis extends Activity {
String login = "admin", senha= "admin", loginaux, senhaaux;
int guardaId;
// Dados do banco
SQLiteDatabase bancoDados = null;
Cursor cursor;
// Dados do mapa
GoogleMap map;
final LatLng stgo = new LatLng(-29.191357,-54.866588);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Toast.makeText(getApplicationContext(), "On Created!", Toast.LENGTH_LONG).show();
menuPrincipal(); //chama menu inicial
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.tudo_imoveis, menu);
return true;
}
// ---------------------------------------------- Chama a tela inicial ----------------------------------------------
public void menuPrincipal(){
setContentView(R.layout.principal);
Button btFechar = (Button) findViewById(R.id.btfechar);
Button btVer = (Button) findViewById(R.id.btVer);
Button btAnunciar = (Button) findViewById(R.id.btAnunciar);
Button btLogar = (Button) findViewById(R.id.btLogar);
TextView tvlogin = (TextView) findViewById(R.id.tvLogin);
TextView tvsenha = (TextView) findViewById(R.id.tvSenha);
EditText etLogin = (EditText) findViewById(R.id.etLogin);
EditText etSenha = (EditText) findViewById(R.id.etSenha);
// Deixa login invisível
tvlogin.setVisibility(View.INVISIBLE);
tvsenha.setVisibility(View.INVISIBLE);
etLogin.setVisibility(View.INVISIBLE);
etSenha.setVisibility(View.INVISIBLE);
btLogar.setVisibility(View.INVISIBLE);
// Botão ver
btVer.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
abreOuCriaBanco();
mostraMapa();
Toast.makeText(getApplicationContext(), "Mapa", Toast.LENGTH_SHORT).show();
}
});
// Botão Anunciar
btAnunciar.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
abreOuCriaBanco();
logar();
}
});
// Botão fechar
btFechar.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
sairSistema();
}
});
}
// ------------------------------------------- Função mostraMapa() ---------------------------------------------------
public void mostraMapa(){
try{
setContentView(R.layout.mapa);
ImageView logo = (ImageView) findViewById(R.id.logo);
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
// utiliza-se este método para versões superiores ao Android 3.0 com import da biblioteca
// import com.google.android.gms.maps.MapFragment;
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(stgo, 15);
map.animateCamera(update);
// Ao clicar na imagem
logo.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
menuPrincipal();
//bancoDados.close();
Toast.makeText(getApplicationContext(), "Menu Principal", Toast.LENGTH_SHORT).show();
}
});
// Se não tem dados carrega a casa
if (buscaDados()==true){
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
map.addMarker(new MarkerOptions()
.position(new LatLng(-29.187648,-54.864245))
.title("Duque de Caxias, 513, apt. 403")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.casa)));
}
// Se tem dados 1º de maneira estática pra ver se funciona
if (buscaDados()==false){
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
map.addMarker(new MarkerOptions()
.position(new LatLng(-29.187648,-54.864245))
.title("Falso, 513, apt. 403")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.casa)));
Toast.makeText(getApplicationContext(), "Não existem registros!",Toast.LENGTH_SHORT).show();
}
}catch (Exception e){Toast.makeText(getApplicationContext(), "Erro: "+e, Toast.LENGTH_SHORT).show();}
}