eclipse - Android Converting Object to String Array -
to set scene: have fragment executes asynctask. here fragment.
package com.ib.ecko; import android.os.bundle; import android.annotation.suppresslint; import android.app.fragment; import android.graphics.bitmap; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.imagebutton; import android.widget.textview; @suppresslint("newapi") public class profilefragment extends fragment { public object objarr[] = new object[3]; bitmap profileimages[]; string userinfo[] = new string[6]; string userinfo2[]; string summary; private imagebutton profileimagebutton; private textview usernametextview; private textview agetextview; private textview personalitytextview; private textview summarytextview; public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { view v = inflater.inflate(r.layout.activity_profile_fragment, container, false); profileimagebutton = (imagebutton) v.findviewbyid(r.id.profileimagebutton); usernametextview = (textview) v.findviewbyid(r.id.profileviewusernametextview); agetextview = (textview) v.findviewbyid(r.id.profileviewagetextview); personalitytextview = (textview) v.findviewbyid(r.id.profileviewpersonalitytextview); summarytextview = (textview) v.findviewbyid(r.id.profileviewsummarytextview); //download profile networkasyncdownload task = new networkasyncdownload(objarr); task.execute(); // inflate layout fragment return v; } public void setviews(){ userinfo = (string[]) objarr[0]; profileimages = (bitmap[]) objarr[1]; summary = (string) objarr[2]; userinfo2 = (string[]) objarr[3]; profileimagebutton.setimagebitmap(profileimages[0]); usernametextview.settext(userinfo[0]); personalitytextview.settext(userinfo2[4]); agetextview.settext(userinfo[3]); summarytextview.settext(summary); } } here asynctask.
package com.ib.ecko; import java.io.file; import java.io.fileinputstream; import java.io.filenotfoundexception; import java.io.fileoutputstream; import java.io.ioexception; import java.io.objectinputstream; import java.io.objectoutputstream; import java.lang.ref.weakreference; import java.net.socketexception; import org.apache.commons.net.ftp.ftp; import org.apache.commons.net.ftp.ftpclient; import org.apache.commons.net.ftp.ftpreply; import android.content.context; import android.graphics.bitmap; import android.os.asynctask; import android.os.environment; import android.widget.imagebutton; import android.widget.textview; public class networkasyncdownload extends asynctask<void, void, object[]> { fileoutputstream desfilestream; fileinputstream fileinputstream; objectinputstream objectinputstream; object input1; object input2; object input3; object input4; object objarr[]; bitmap profileimages[]; string userinfo[]; string userinfo2[]; string summary; private final weakreference<object[]> objarrref; public networkasyncdownload(object obj[]){ objarrref = new weakreference<object[]>(obj); } @override protected object[] doinbackground(void... params) { desfilestream = new fileoutputstream(path + "juifromserver"); mftpclient.retrievefile("jui", desfilestream); fileinputstream = new fileinputstream(path + "juifromserver"); objectinputstream = new objectinputstream(fileinputstream); input1 = objectinputstream.readobject(); mftpclient.retrievefile("profilepictures", desfilestream); input2 = objectinputstream.readobject(); mftpclient.retrievefile("summary", desfilestream); input3 = objectinputstream.readobject(); mftpclient.retrievefile("jui2", desfilestream); input4 = objectinputstream.readobject(); objarr = new object[] {input1, input2, input3, input4}; } catch (socketexception e) { e.printstacktrace(); } catch (ioexception e) { e.printstacktrace(); } catch (classnotfoundexception e) { e.printstacktrace(); } return objarr; } protected void onpostexecute(object object[]) { objarr = objarrref.get(); objarr = object; profilefragment setviews = new profilefragment(); setviews.objarr = object; setviews.setviews(); } } when load fragment, here error log gives me.
10-07 03:28:21.358: e/androidruntime(7759): fatal exception: main 10-07 03:28:21.358: e/androidruntime(7759): java.lang.nullpointerexception 10-07 03:28:21.358: e/androidruntime(7759): @ com.ib.ecko.profilefragment.setviews(profilefragment.java:44) 10-07 03:28:21.358: e/androidruntime(7759): @ com.ib.ecko.networkasyncdownload.onpostexecute(networkasyncdownload.java:85) 10-07 03:28:21.358: e/androidruntime(7759): @ com.ib.ecko.networkasyncdownload.onpostexecute(networkasyncdownload.java:1) 10-07 03:28:21.358: e/androidruntime(7759): @ android.os.asynctask.finish(asynctask.java:631) 10-07 03:28:21.358: e/androidruntime(7759): @ android.os.asynctask.access$600(asynctask.java:177) 10-07 03:28:21.358: e/androidruntime(7759): @ android.os.asynctask$internalhandler.handlemessage(asynctask.java:644) 10-07 03:28:21.358: e/androidruntime(7759): @ android.os.handler.dispatchmessage(handler.java:99) 10-07 03:28:21.358: e/androidruntime(7759): @ android.os.looper.loop(looper.java:137) 10-07 03:28:21.358: e/androidruntime(7759): @ android.app.activitythread.main(activitythread.java:5227) 10-07 03:28:21.358: e/androidruntime(7759): @ java.lang.reflect.method.invokenative(native method) 10-07 03:28:21.358: e/androidruntime(7759): @ java.lang.reflect.method.invoke(method.java:511) 10-07 03:28:21.358: e/androidruntime(7759): @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:795) 10-07 03:28:21.358: e/androidruntime(7759): @ com.android.internal.os.zygoteinit.main(zygoteinit.java:562) 10-07 03:28:21.358: e/androidruntime(7759): @ de.robv.android.xposed.xposedbridge.main(xposedbridge.java:110) 10-07 03:28:21.358: e/androidruntime(7759): @ dalvik.system.nativestart.main(native method) the error seems caused :
java.lang.nullpointerexception 10-07 03:28:21.358:e/androidruntime(7759): @ com.ib.ecko.profilefragment.setviews(profilefragment.java:44) which line right here: userinfo = (string[]) objarr[0];
sorry naming, wasn't intention code reader friendly. objarr array of objects had saved. objarr[0] string array. have done before in different activity not quite complicated whole fragment , asynctask stuff going on, within activity. i'm not sure what's causing error. you'll see redundant code result of me trying random things make work , see caused it. also, deleted network code stuff. let me know if should tidy post it's easier read.
seems have profilefragment.objarr = new object[3], each of objects null.
when initialices array (new object[]) reserve space contains objects, each object null until instance its. example, this:
profilefragment.objarr[0] = new string[6]; then, can do:
userinfo = (string[]) objarr[0]; userinfo[0] = "name"; userinfo[1] = "surname"; ....
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