checkbox - Android - checked perform action -
as i'm new android, problem i'm developing application want increment/decrement numbers clicking on buttons in home page,but first of should check in settings menu check box checked,if checked perform actions...
mainactivity.java
package com.example.sanple; import android.app.activity; import android.content.intent; import android.content.sharedpreferences; import android.content.sharedpreferences.editor; import android.os.bundle; import android.preference.preferencemanager; import android.util.log; import android.view.keyevent; import android.view.menu; import android.view.menuinflater; import android.view.menuitem; import android.view.view; import android.view.view.onclicklistener; import android.view.window; import android.view.windowmanager; import android.widget.button; import android.widget.checkbox; import android.widget.textview; import android.widget.toast; public class mainactivity extends activity { public button incre; public button dec; public textview nub; public static int count = 0; public string string; /* * @override protected void onstart() { super.onstart(); * * bundle bundle = getintent().getextras(); if (bundle != null) { if * (bundle.getboolean("checked")) { mainactivity activity = new * mainactivity(); activity.addlisteneroncheckbox(); } else { * toast.maketext(getapplicationcontext(), "try check checkbox", * toast.length_short).show(); } * * } } */ @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); requestwindowfeature(window.feature_no_title); setcontentview(r.layout.activity_main); addlisteneroncheckbox(); this.getwindow().setflags(windowmanager.layoutparams.flag_fullscreen, windowmanager.layoutparams.flag_fullscreen); } void addlisteneroncheckbox() { incre = (button) findviewbyid(r.id.increment); dec = (button) findviewbyid(r.id.decrement); nub = (textview) findviewbyid(r.id.brakecounter); incre.setonclicklistener(new onclicklistener() { public void onclick(view v) { log.d("src", "button clciked"); count++; string = integer.tostring(count); nub.settext(string); } }); dec.setonclicklistener(new onclicklistener() { public void onclick(view v) { log.d("src", "button clciked"); count--; string = integer.tostring(count); nub.settext(string); } }); } @override public boolean dispatchkeyevent(keyevent event) { int action = event.getaction(); int keycode = event.getkeycode(); switch (keycode) { case keyevent.keycode_volume_up: if (action == keyevent.action_up) { int = count++; if (i > 10) { toast.maketext(getapplicationcontext(), "applying many times brake", toast.length_short) .show(); } string = integer.tostring(count); nub.settext(string); } return true; case keyevent.keycode_volume_down: if (action == keyevent.action_down) { count--; string = integer.tostring(count); nub.settext(string); } default: break; } return super.dispatchkeyevent(event); } @override public boolean oncreateoptionsmenu(menu menu) { // menuinflater inflater = new menuinflater(getapplicationcontext()); getmenuinflater().inflate(r.menu.main, menu); return true; } @override public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { case r.id.action_settings: intent startactivity = new intent(this, settings.class); startactivity(startactivity); break; default: break; } return super.onoptionsitemselected(item); } } settings.java
package com.example.sanple; import android.r.color; import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.menu; import android.widget.button; import android.widget.checkbox; import android.widget.compoundbutton; import android.widget.compoundbutton.oncheckedchangelistener; import android.widget.textview; public class settings extends activity { public textview view; public checkbox box; public button button; // keyevent keyevent = null; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_settings); view = (textview) findviewbyid(r.id.enable_counter); box = (checkbox) findviewbyid(r.id.checkbox1); box.setbackgroundcolor(color.black); button = (button) findviewbyid(r.id.save); box.setoncheckedchangelistener(new oncheckedchangelistener() { public void oncheckedchanged(compoundbutton buttonview, boolean ischecked) { /*//here r setting checked true box.setchecked(true); intent intent = new intent(); intent.putextra("checked", true);*/ } }); } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.settings, menu); return true; } } check box xml..
activity_settings.xml
<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" tools:context=".settings" > <textview android:id="@+id/enable_counter" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparentleft="true" android:layout_alignparenttop="true" android:layout_marginleft="51dp" android:layout_margintop="34dp" android:text="enable_counter" android:textcolor="#f00" /> <checkbox android:id="@+id/checkbox1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignbaseline="@+id/enable_counter" android:layout_alignbottom="@+id/enable_counter" android:layout_alignparentright="true" android:layout_marginright="39dp" /> <button android:id="@+id/save" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:layout_alignright="@+id/checkbox1" android:layout_marginbottom="64dp" android:text="save" /> </relativelayout>
do this, in button click event code :
@override public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { case r.id.action_settings: intent startactivity = new intent(this, settings.class); startactivityforresult(startactivity); break; default: break; } return super.onoptionsitemselected(item); } in settings :
public void oncheckedchanged(compoundbutton buttonview, boolean ischecked) { intent intent = getintent(); if(ischecked) intent.putextra("checked", true); else intent.putextra("checked",false); setresult(i,100); } //put in main activity
@override protected void onactivityresult(int requestcode, int resultcode, intent data) { if (resultcode == 100) { boolean val = data.getbooleanextra("checked",false); if(val==true) //allow increment decrement else //not } } }
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