在处理具有2个活动MapPointActivity和MapReminderActivity的应用程序时。 我在MapPointActivity上有一个按钮，它有onClick事件移动到MapReminderActivity。
public void gotoMap(View v){
Intent intent = new Intent(this, MapReminderActivity.class);
startActivity(intent);
}
但是当我点击按钮时，我的应用程序崩溃了。 MapReminderActivity包含显示地图的代码。
MapReminderActivity ：
public class MapReminderActivity extends FragmentActivity implements
GoogleApiClient.ConnectionCallbacks,GoogleApiClient.OnConnectionFailedListener, LocationListener{
private static final int GPS_ERRORDIALOG_REQUEST = 9001;
GoogleMap mMap;
GoogleApiClient mLocationClient;
private Location mCurrentLocation;
LocationRequest mLocationRequest;
private static final float DEFAULT_ZOOM = 10;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (servicesOK()) {
setContentView(R.layout.activity_map_reminder);
if (initMap()) {
Toast.makeText(this, "Ready to map!", Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(this, "Map not available!", Toast.LENGTH_SHORT).show();
}
}
else {
setContentView(R.layout.activity_main);
}
}
private void gotoLocation(double lat, double lng,
float zoom) {
LatLng ll = new LatLng(lat, lng);
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(ll, zoom);
mMap.moveCamera(update);
}
private void gotoLocation(double lat, double lng) {
LatLng ll = new LatLng(lat, lng);
CameraUpdate update = CameraUpdateFactory.newLatLng(ll);
mMap.moveCamera(update);
}
public void geoLocate(View v) throws IOException {
hideSoftKeyboard(v);
EditText et = (EditText) findViewById(R.id.editText1);
String location = et.getText().toString();
Geocoder gc = new Geocoder(this);
List<Address> list = gc.getFromLocationName(location, 1);
Address add = list.get(0);
String locality = add.getLocality();
Toast.makeText(this, locality, Toast.LENGTH_LONG).show();
double lat = add.getLatitude();
double lng = add.getLongitude();
gotoLocation(lat, lng, DEFAULT_ZOOM);
}
private void hideSoftKeyboard(View v) {
InputMethodManager imm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
public boolean servicesOK(){
int isAvailable = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if(isAvailable == ConnectionResult.SUCCESS){
return true;
}
else if(GooglePlayServicesUtil.isUserRecoverableError(isAvailable)){
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable, this, GPS_ERRORDIALOG_REQUEST);
dialog.show();
}
else{
Toast.makeText(this, "Can't connect to Google Play Services", Toast.LENGTH_LONG).show();
}
return false;
}
private boolean initMap() {
if (mMap == null) {
SupportMapFragment mapFrag =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map1);
mMap = mapFrag.getMap();
}
return (mMap != null);
}
@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 void onLocationChanged(Location location) {
mCurrentLocation = location;
}
@Override
public void onConnectionFailed(ConnectionResult result) {
Log.d("Connection Falure Error",result.toString());
}
@Override
public void onConnected(Bundle arg0) {
if(servicesOK()) {
LocationServices.FusedLocationApi.requestLocationUpdates(mLocationClient, mLocationRequest, this);
}
}
@Override
public void onConnectionSuspended(int arg0) {
// TODO Auto-generated method stub
}
}
activity_map_reminder：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:text="Location:"
android:textSize="20sp"
android:layout_weight="20" />
<EditText
android:id="@+id/editText1"
android:layout_width="128dp"
android:layout_height="wrap_content"
android:layout_gravity="center|center_vertical"
android:ems="10" >
<requestFocus />
</EditText>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right|center_vertical"
android:onClick="geoLocate"
android:text="Go"
android:layout_weight="30"/>
</LinearLayout>
<fragment
android:id="@+id/map1"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="304dp"
android:layout_height="fill_parent" >
</fragment>
</LinearLayout>
我知道我的MapReminderActivity存在问题，但无法弄明白。
logcat的：
05-06 11:01:29.081: E/AndroidRuntime(3199): FATAL EXCEPTION: main
05-06 11:01:29.081: E/AndroidRuntime(3199): java.lang.IllegalStateException: Could not execute method of the activity
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.view.View$1.onClick(View.java:2179)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.view.View.performClick(View.java:2535)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.view.View$PerformClick.run(View.java:9129)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.os.Handler.handleCallback(Handler.java:618)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.os.Handler.dispatchMessage(Handler.java:123)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.os.Looper.loop(SourceFile:351)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.app.ActivityThread.main(ActivityThread.java:3820)
05-06 11:01:29.081: E/AndroidRuntime(3199): at java.lang.reflect.Method.invokeNative(Native Method)
05-06 11:01:29.081: E/AndroidRuntime(3199): at java.lang.reflect.Method.invoke(Method.java:538)
05-06 11:01:29.081: E/AndroidRuntime(3199): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:969)
05-06 11:01:29.081: E/AndroidRuntime(3199): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:727)
05-06 11:01:29.081: E/AndroidRuntime(3199): at dalvik.system.NativeStart.main(Native Method)
05-06 11:01:29.081: E/AndroidRuntime(3199): Caused by: java.lang.reflect.InvocationTargetException
05-06 11:01:29.081: E/AndroidRuntime(3199): at java.lang.reflect.Method.invokeNative(Native Method)
05-06 11:01:29.081: E/AndroidRuntime(3199): at java.lang.reflect.Method.invoke(Method.java:538)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.view.View$1.onClick(View.java:2174)
05-06 11:01:29.081: E/AndroidRuntime(3199): ... 11 more
05-06 11:01:29.081: E/AndroidRuntime(3199): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.gps/com.example.gps.MapReminderActivity}; have you declared this activity in your AndroidManifest.xml?
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1445)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1419)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.app.Activity.startActivityForResult(Activity.java:2874)
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.app.Activity.startActivity(Activity.java:2980)
05-06 11:01:29.081: E/AndroidRuntime(3199): at com.example.gps.MapPointActivity.gotoMap(MapPointActivity.java:18)
05-06 11:01:29.081: E/AndroidRuntime(3199): ... 14 more
的Manifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.gps"
android:versionCode="1"
android:versionName="1.0"
android:installLocation="preferExternal">
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="10"
android:maxSdkVersion="17"/>
<permission
android:name="com.example.gps.permission.MAPS_RECIEVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.gps.permission.MAPS_RECIEVE" />
<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" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.gps.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.gps.AllReminderActivity"
android:label="@string/title_activity_all_reminder" >
</activity>
<activity
android:name="com.example.gps.CheckLocationActivity"
android:label="@string/title_activity_check_location" >
</activity>
<activity
android:name="com.example.gps.MapPointActivity"
android:label="@string/title_activity_map_point" >
</activity>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyD8c_Jhw-x45hbYaf2LVTujSsQvzAuNaS4" />
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</application>
</manifest>
答案 0 :(得分：1)
根据logcat
: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.gps/com.example.gps.MapReminderActivity}; have you declared this activity in your AndroidManifest.xml?
05-06 11:01:29.081: E/AndroidRuntime(3199): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1445)
您应该在MapReminderActivity标记下的manifest.xml注册<application>活动
<activity
android:name="com.example.gps.MapReminderActivity"
android:configChanges="orientation" />