1 Android studio qanday dastur tushuntiring Android Studio

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1


2 misol onclick
package com.baxodirdavirov.lesson_1;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);
button = findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
changetitle();
}
});
}
public void changetitle(){
setTitle("Changetitle");
}
}
3 misol
package com.example.widgets;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
public class CheckBoxExample extends AppCompatActivity {
CheckBox c1,c2,c3;
Button b1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_check_box_example);
c1=(CheckBox)findViewById(R.id.check1);
c2=(CheckBox)findViewById(R.id.check2);
c3=(CheckBox)findViewById(R.id.check3);
b1=(Button)findViewById(R.id.submit);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (c1.isChecked()&&c2.isChecked()&&c3.isChecked())
{
Toast.makeText(getApplicationContext(),""+c1.getText()+" , "+c2.getText()+" , "+c3.getText(),Toast.LENGTH_SHORT).show();
}else if (c1.isChecked()&&c2.isChecked()){
Toast.makeText(getApplicationContext(),""+c1.getText()+" , "+c2.getText(),Toast.LENGTH_SHORT).show();
}else if (c1.isChecked()&&c3.isChecked()){
Toast.makeText(getApplicationContext(),""+c1.getText()+" , "+c3.getText(),Toast.LENGTH_SHORT).show();
}else if (c2.isChecked()&&c3.isChecked()){
Toast.makeText(getApplicationContext(),""+c2.getText()+" , "+c3.getText(),Toast.LENGTH_SHORT).show();
}else if (c1.isChecked()){
Toast.makeText(getApplicationContext(),""+c1.getText(),Toast.LENGTH_SHORT).show();
}else if (c2.isChecked()){
Toast.makeText(getApplicationContext(),""+c2.getText(),Toast.LENGTH_SHORT).show();
}else if (c3.isChecked()){
Toast.makeText(getApplicationContext(),""+c3.getText(),Toast.LENGTH_SHORT).show();
} } });
}
}
4 misol chekbox


xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".CheckBoxExample"
android:orientation="vertical"
android:gravity="center">
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Fruits"
android:textSize="20sp"
android:textColor="@color/colorOrange"/>
android:id="@+id/check1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Apple"
android:textColor="@color/colorAccent"/>
android:id="@+id/check2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Orange"
android:textColor="@color/colorPrimary"/>
android:id="@+id/check3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mango"
android:textColor="@color/colorBlue"
android:layout_marginBottom="20dp"/>
android:id="@+id/submit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Submit"
android:textColor="@color/colorWhite"
android:background="@color/colorPrimary"/>

5 misol checbox
package com.example.widgets;
import android.graphics.Color;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Switch;
import android.widget.Toast;
public class SwitchExample extends AppCompatActivity {
LinearLayout linearLayout;
Switch aSwitch;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_switch_example);
linearLayout=(LinearLayout)findViewById(R.id.linearLayout);
aSwitch=(Switch)findViewById(R.id.switchbutton);
aSwitch.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (aSwitch.isChecked()){
linearLayout.setBackgroundColor(Color.CYAN); Toast.makeText(getApplicationContext(),"Switch is clicked & background is cyan",Toast.LENGTH_SHORT).show();
}else{ linearLayout.setBackgroundColor(Color.RED);
Toast.makeText(getApplicationContext(),"Switch is clicked & background is red",Toast.LENGTH_SHORT).show();
}
}
});
}
}
6 misol paketi com . misol . vidjetlar ;
androidni import qilish . grafika . rang ;
androidx import . appcompat . ilova . AppCompatActivity ;
androidni import qilish . os . to'plam ;
androidni import qilish . ko'rish . Ko'rish ;
androidni import qilish . vidjet . LinearLayout ;
androidni import qilish . vidjet . Switch ;
androidni import qilish . vidjet . tushdi ;
umumiy sinf SwitchExample AppCompatActivity -ni kengaytiradi {
LinearLayout linearLayout ;
aSwitch ga o'tish ;
@ bekor qilish
himoyalangan void onCreate ( to'plam savedInstanceState ) {
super . onCreate ( savedInstanceState );
setContentView ( R. layout . Activity_switch_example ) ;
linearLayout =( LinearLayout ) findViewById ( R . id . linearLayout );
aSwitch =( Switch ) findViewById ( R . id . switch tugmasi );
aSwitch . setOnClickListener ( yangi ko'rish . OnClickListener () {
@ bekor qilish
public void onClick ( View v ) {
agar ( aSwitch . isChecked ()){
linearLayout . setBackgroundColor ( Rang . CYAN ); Tost . makeText ( getApplicationContext (), "Switch bosilgan va fon ko'k rangda" , Toast . LENGTH_SHORT ). ko'rsatish ();
} boshqa { linearLayout . setBackgroundColor ( Rang . RED );
Tost . makeText ( getApplicationContext (), "Switch bosildi va fon qizil" , Toast . LENGTH_SHORT ). ko'rsatish (); }
} });
}
}
7 misol progrebar

< LinearLayout 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 "
asboblar:kontekst= " .ProgressBarExample "
android: gravitatsiya = " markaz "
android:orientation= " vertikal "
android:padding= " 16dp " >
< TextView
android: id = " @+id/matn "
android:layout_width= " wrap_content "
android:layout_height= " wrap_content "
android:text= " Ishga tushirish tugmasini bosing "
android:layout_marginBottom= " 20dp " />
< ProgressBar 19 android : id = " @+id/progress "
android:layout_width= " match_parent "
android:layout_height= " wrap_content "
android:layout_marginBottom= " 24dp "
style= " @style/Widget.AppCompat.ProgressBar.Horizontal "
android: max= " 100 " />
< Android tugmasi : id = " @+id/start "
android:layout_width= " wrap_content "
android:layout_height= " wrap_content "
android:text= " Boshlash "
android:textColor= " @color/colorWhite "
android: fon = " @color/colorOrange " />