Any interest from Guru to make this code (system full-screen window) on B4A to have a possibility of the true kiosk mode ?
MainActivity.java
Service:
Manifest:
MainActivity.java
B4X:
package rubberbigpepper.fullscreenunclosable;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.view.View.onClickListener;
public class MainActivity extends Activity implements onClickListener
{
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.btnStart).setonClickListener(this);
}
public void onClick(View v)
{
switch(v.getId())
{
case R.id.btnStart:
StartService();
break;
}
}
private void StartService()
{
try
{
Intent cIntent=new Intent(this,FrontWindowService.class);
cIntent.setAction(FrontWindowService.ACTION_START);
startService(cIntent);
}
catch(Exception ex){}
}
}Service:
B4X:
package rubberbigpepper.fullscreenunclosable;
import java.lang.reflect.Method;
import android.app.Notification;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.view.View.onClickListener;
public class FrontWindowService extends Service implements onClickListener
{
public static String ACTION_START="rubberbigpepper.StartFrontWindowService";
public static String ACTION_STOP="rubberbigpepper.StopFrontWindowService";
private View m_cLayout=null;
//private FrameLayout m_cBrLayout=null;
private Method mSetForeground;
private Method mStartForeground;
private Method mStopForeground;
private static final Class<?>[] mSetForegroundSignature = new Class[] {boolean.class};
private static final Class<?>[] mStartForegroundSignature = new Class[] {int.class, Notification.class};
private static final Class<?>[] mStopForegroundSignature = new Class[] { boolean.class};
private Object[] mSetForegroundArgs = new Object[1];
private Object[] mStartForegroundArgs = new Object[2];
private Object[] mStopForegroundArgs = new Object[1];
void invokeMethod(Method method, Object[] args)
{
try
{
mStartForeground.invoke(this, mStartForegroundArgs);
}
catch (Exception e)
{
}
}
void startForegroundCompat(int id, Notification notification)
{
// If we have the new startForeground API, then use it.
if (mStartForeground != null)
{
mStartForegroundArgs[0] = Integer.valueOf(id);
mStartForegroundArgs[1] = notification;
invokeMethod(mStartForeground, mStartForegroundArgs);
return;
}
// Fall back on the old API.
mSetForegroundArgs[0] = Boolean.TRUE;
invokeMethod(mSetForeground, mSetForegroundArgs);
}
void stopForegroundCompat(int id)
{
// If we have the new stopForeground API, then use it.
if (mStopForeground != null)
{
mStopForegroundArgs[0] = Boolean.TRUE;
try
{
mStopForeground.invoke(this, mStopForegroundArgs);
}
catch (Exception e)
{
// Should not happen.
Log.w("ApiDemos", "Unable to invoke stopForeground", e);
}
return;
}
// Fall back on the old API. Note to cancel BEFORE changing the
// foreground state, since we could be killed at that point.
mSetForegroundArgs[0] = Boolean.FALSE;
invokeMethod(mSetForeground, mSetForegroundArgs);
}
@Override
public void onCreate()
{
try
{
mStartForeground = getClass().getMethod("startForeground",mStartForegroundSignature);
mStopForeground = getClass().getMethod("stopForeground",mStopForegroundSignature);
}
catch (Exception e)
{
// Running on an older platform.
mStartForeground = mStopForeground = null;
//return;
}
try
{
mSetForeground = getClass().getMethod("setForeground",mSetForegroundSignature);
}
catch (Exception e)
{
throw new IllegalStateException(
"OS doesn't have Service.startForeground OR Service.setForeground!");
}
}
@Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
@Override
public void onStart(Intent intent, int startId)
{
handleCommand(intent);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
handleCommand(intent);
return Service.START_REDELIVER_INTENT;
}
public void handleCommand(Intent intent)
{
if(intent==null)
return;
String strAction=intent.getAction();
if(strAction.equalsIgnoreCase(ACTION_START))
{//пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ
HideFullScreenWindow();
ShowFullScreenWindow();
startForegroundCompat(R.string.app_name, new Notification());
}
else
{
HideFullScreenWindow();
stopSelf();
}
}
private void HideFullScreenWindow()
{
try
{
if(m_cLayout!=null)
{
WindowManager cWM=(WindowManager)getSystemService(Context.WINDOW_SERVICE);
cWM.removeView(m_cLayout);
m_cLayout=null;
}
}
catch(Exception ex){}
}
private void ShowFullScreenWindow()
{
WindowManager cWM=(WindowManager)getSystemService(Context.WINDOW_SERVICE);
LayoutInflater cInflater=(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
m_cLayout=cInflater.inflate(R.layout.front_main, null);
m_cLayout.findViewById(R.id.btnClose).setonClickListener(this);
int nFlags=WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL|WindowManager.LayoutParam
s.FLAG_NOT_FOCUSABLE;
nFlags|=WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN|WindowManager.Layo
utParams.FLAG_LAYOUT_INSET_DECOR;
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
WindowManager.LayoutParams.FILL_PARENT,WindowManager.LayoutParams.FILL_PARE
NT,
WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,nFlags,PixelFormat.OPAQUE);
cWM.addView(m_cLayout, lp);
}
public void onClick(View v)
{
switch(v.getId())
{
case R.id.btnClose://удаляем окно
HideFullScreenWindow();
stopSelf();
break;
}
}
}Manifest:
B4X:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="rubberbigpepper.fullscreenunclosable"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.SYSTEM_alert_WINDOW"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main"
android:launchMode="singleInstance">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:exported="true" android:name="FrontWindowService" android:enabled="true"></service>
</application>
</manifest>
Last edited:
