ac4android
Well-Known Member
Hi. I use Toast.makeText a lot to help me debug, but recently it has stopped displaying text on my Android 5 Samsung S5.
Meanwhile, AndroidManifest.XML throws a "...is not assignable to 'android.app.activity' and 'Validates resoruce references inside Android XML files'.
I don't mind that all the AVDs have stopped working with a "300 seconds timed out waiting for emulator" issue since I am relying on my Android Smartphone.
Can someone help with the toast display issue ?
I also need to know how to fix the AndroidManifest.XML error
Here is the Manifest
Here is the content_main.xml
Here is MainActivity.java
Here is the MyGpService.java class
And here is the activity_my_gs_service.xml ( it is not actually used, but I left it there in case that's the cause of the problem in the Manifest
Meanwhile, AndroidManifest.XML throws a "...is not assignable to 'android.app.activity' and 'Validates resoruce references inside Android XML files'.
I don't mind that all the AVDs have stopped working with a "300 seconds timed out waiting for emulator" issue since I am relying on my Android Smartphone.
Can someone help with the toast display issue ?
I also need to know how to fix the AndroidManifest.XML error
Here is the Manifest
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myexamples.testgpsservice">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MyGpsService"></activity> <======= ERROR here, .MyGpsService is not assignable to android.app.activity
</application>
</manifest>Here is the content_main.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
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"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.myexamples.testgpsservice.MainActivity"
tools:showIn="@layout/activity_main">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="About Android Services"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:textSize="25dp" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="How to start and stop servics!"
android:textColor="@color/colorPrimaryDark"
android:textSize="20dp"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginBottom="40dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="150dp"
android:orientation="horizontal">
<Button
android:id="@+id/button"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Start Services"
android:onClick="startService"
android:layout_below="@+id/textView2"/>
<Button
android:id="@+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Stop Services"
android:onClick="stopService"
android:layout_below="@+id/textView2"
android:layout_centerHorizontal="true"/>
</LinearLayout>
</RelativeLayout>Here is MainActivity.java
Code:
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.content.Intent;
import android.view.View;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
// Method to start the service
public void startService(View view) {
startService(new Intent(getBaseContext(), MyGpsService.class));
}
// Method to stop the service
public void stopService(View view) {
stopService(new Intent(getBaseContext(), MyGpsService.class));
}
}Here is the MyGpService.java class
Code:
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;
public class MyGpsService extends Service {
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO start locationListener here
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
return START_STICKY;
}
@Override
public void onDestroy() {
// TODO make sure the service is stopped, else it continues running
super.onDestroy();
Toast.makeText(this, "Service Destroyed", Toast.LENGTH_LONG).show();
}
}And here is the activity_my_gs_service.xml ( it is not actually used, but I left it there in case that's the cause of the problem in the Manifest
Code:
<?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: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.myexamples.testgpsservice.MyGpsService">
</RelativeLayout>