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它显示的错误消息是，当我从添加提醒活动移动到AddEventPlace活动时，该应用不幸关闭。Android应用崩溃Google地图活动
DataBaseHelper.java
public class DatabaseHelper extends SQLiteOpenHelper {
String tbl_User = "User";
String tbl_Reminder = "Reminder";
public static final String DATABASE_NAME = "Remind_Me.db";
public static final String COL_1 = "Username";
public static final String COL_2 = "Password";
public static final String COL_3 = "Email";
public static final String COL_4 = "Contact_No";
public static final String COL_5 = "ID";
public static final String COL_6 = "item";
public static final String COL_7 = "time";
public static final String COL_8 = "date";
public static final String COL_9 = "x_coordinates";
public static final String COL_10 = "y_coordinates";
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table if not exists User (Username TEXT PRIMARY KEY ,Password TEXT, Email TEXT, Contact_No INTEGER)");
db.execSQL("create table Reminder (ID int PRIMARY KEY AUTOINCREMENT ," +
"item TEXT," +
" Time TIMESTAMP DEFAULT CURRENT_TIMESTAMP," +
"Date DATETIME DEFAULT CURRENT_TIMESTAMP," +
" x_coordinates REAL," +
"y_coordinates REAL," +
"FOREIGN KEY(Username) REFERENCES User(USERNAME))");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS User");
db.execSQL("DROP TABLE IF EXISTS Reminder");
onCreate(db);
}
public boolean insertUser(String Username, String password, String Email, int ContactNO) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COL_1, Username);
contentValues.put(COL_2, password);
contentValues.put(COL_3, Email);
contentValues.put(COL_4, ContactNO);
long result = db.insert(tbl_User, null, contentValues);
if (result == -1)
return false;
else
return true;
}
public boolean AddReminder(String item, double x_coordinates, double y_coordinates, String Username) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COL_6, item);
contentValues.put(COL_7, " time('now') ");
contentValues.put(COL_8, java.lang.System.currentTimeMillis());
contentValues.put(COL_9, x_coordinates);
contentValues.put(COL_10, y_coordinates);
contentValues.put(COL_1, Username);
long result = db.insert(tbl_Reminder, null, contentValues);
if (result == -1)
return false;
else
return true;
}
}
AddReminder.xml
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/back"
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="com.example.champ.remindme2.AddReminder">
<ImageView
android:id="@+id/imageView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="52dp"
android:src="@drawable/remind_me_logo" />
<EditText
android:id="@+id/edtitem"
android:layout_width="260dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/plusButton"
android:layout_alignLeft="@+id/imageView6"
android:layout_alignTop="@+id/plusButton"
android:background="@drawable/rounded_edited_text"
android:inputType="text"
android:padding="5dp"
android:text="Add Item"
android:textAlignment="center" />
<Button
android:id="@+id/plusButton"
style="@style/ButtonText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/NextButton"
android:layout_alignParentRight="true"
android:layout_alignStart="@+id/NextButton"
android:layout_below="@+id/imageView6"
android:background="@drawable/blue_botton"
android:onClick="plus"
android:text="+" />
<ScrollView
android:id="@+id/scrollView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="47dp" />
<Button
android:id="@+id/NextButton"
style="@style/ButtonText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/imageView6"
android:layout_alignTop="@+id/BackButton"
android:background="@drawable/blue_botton"
android:onClick="AddEventPlace"
android:text="Next" />
<Button
android:id="@+id/BackButton"
style="@style/ButtonText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/edtitem"
android:layout_alignParentBottom="true"
android:layout_alignStart="@+id/edtitem"
android:background="@drawable/blue_botton"
android:onClick="Back"
android:text="Back" />
</RelativeLayout>
AddReminder.java
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="380dp"
android:layout_height="wrap_content"
android:weightSum="1">
<EditText
android:id="@+id/Address"
android:layout_width="183dp"
android:layout_height="wrap_content"
android:layout_weight="0.98" />
<Button
android:id="@+id/Bsearch"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onSearch"
android:text="Search" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="382dp"
android:layout_height="383dp"
tools:context=".MapsActivity" />
</LinearLayout>
<Button
android:id="@+id/btnDone"
android:layout_width="137dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:onClick="Done"
android:text="Done" />
</LinearLayout>
AddEventplace.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="380dp"
android:layout_height="wrap_content"
android:weightSum="1">
<EditText
android:id="@+id/Address"
android:layout_width="183dp"
android:layout_height="wrap_content"
android:layout_weight="0.98" />
<Button
android:id="@+id/Bsearch"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onSearch"
android:text="Search" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="382dp"
android:layout_height="383dp"
tools:context=".MapsActivity" />
</LinearLayout>
<Button
android:id="@+id/btnDone"
android:layout_width="137dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:onClick="Done"
android:text="Done" />
</LinearLayout>
AddEventPlace.java
public class AddEventPlace extends FragmentActivity implements OnMapReadyCallback {
DatabaseHelper Db;
private GoogleMap mMap;
double Latitude;
double Longitude;
Button btnDone;
@Override
protected void onCreate(Bundle savedInstanceState) {
Db = new DatabaseHelper(this);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_event_place);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
btnDone = (Button) findViewById(R.id.btnDone);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mMap.setMyLocationEnabled(true);
}
public void onSearch(View view) {
EditText location_tf = (EditText) findViewById(R.id.Address);
String location = location_tf.getText().toString();
List<Address> addressList = null;
if (location != null || !location.equals("")) {
Geocoder geocoder = new Geocoder(this);
try {
addressList = geocoder.getFromLocationName(location, 1);
} catch (IOException e) {
e.printStackTrace();
}
Address address = addressList.get(0);
LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
Latitude = address.getLatitude();
Longitude = address.getLongitude();
Latitude = 0.0;
Longitude = 0.0;
mMap.addMarker(new MarkerOptions().position(latLng).title("Marker"));
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
}
}
public void Done(View v) {
Intent intent = new Intent(this, Menu.class);
String Username = intent.getExtras().getString("Username");
String item = intent.getExtras().getString("item");
boolean isInserted = Db.AddReminder(item, Latitude, Longitude, Username);
if (isInserted == true) {
Toast.makeText(AddEventPlace.this, "Reminder is added", Toast.LENGTH_LONG).show();
intent.putExtra("Username", Username);
startActivity(intent);
} else
Toast.makeText(AddEventPlace.this, "Reminder is not added", Toast.LENGTH_LONG).show();
}
}
logcat的
05-12 11:54:20.249 2427-2427/com.example.champ.remindme2 E/libprocessgroup: failed to make and chown /acct/uid_10055: Read-only file system
05-12 11:54:20.311 2427-2435/com.example.champ.remindme2 E/art: Failed sending reply to debugger: Broken pipe
05-12 11:54:26.297 2427-2427/com.example.champ.remindme2 E/GMPM: GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
05-12 11:54:26.298 2427-2427/com.example.champ.remindme2 E/GMPM: Scheduler not set. Not logging error/warn.
05-12 11:54:26.578 2427-2518/com.example.champ.remindme2 E/GMPM: Uploading is not possible. App measurement disabled
05-12 11:55:34.762 2427-2427/com.example.champ.remindme2 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.champ.remindme2, PID: 2427
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:4020)
at android.view.View.performClick(View.java:4780)
at android.view.View$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(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4015)
at android.view.View.performClick(View.java:4780)
at android.view.View$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)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
at com.example.champ.remindme2.AddEventPlace.Done(AddEventPlace.java:107)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4015)
at android.view.View.performClick(View.java:4780)
at android.view.View$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$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
05-12 11:59:59.915 6972-6972/com.example.champ.remindme2 E/GMPM: GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
05-12 11:59:59.917 6972-6972/com.example.champ.remindme2 E/GMPM: Scheduler not set. Not logging error/warn.
05-12 12:00:00.082 6972-7001/com.example.champ.remindme2 E/GMPM: Uploading is not possible. App measurement disabled
05-12 12:01:46.745 6972-6972/com.example.champ.remindme2 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.champ.remindme2, PID: 6972
java.lang.IllegalStateException: Could not find method Back(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.support.v7.widget.AppCompatButton with id 'BackButton'
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:321)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:280)
at android.view.View.performClick(View.java:4780)
at android.view.View$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)
05-12 12:01:51.682 8463-8463/com.example.champ.remindme2 E/GMPM: GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
05-12 12:01:51.683 8463-8463/com.example.champ.remindme2 E/GMPM: Scheduler not set. Not logging error/warn.
05-12 12:01:51.989 8463-8500/com.example.champ.remindme2 E/GMPM: Uploading is not possible. App measurement disabled
添加错误日志，以便我们可以看到错误原因。 – androidnoobdev
我已更新后检查。 –