安卓一些常用的题目代码很全的适合初学者

import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.CheckBox; import android.widget.RadioButton; import android.widget.TextView;

public class CheckActivity extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);

final TextView tv=(TextView)this.findViewById(R.id.text01);

final CheckBox checkbox1=(CheckBox)this.findViewById(R.id.checkBox1); final CheckBox checkbox2=(CheckBox)this.findViewById(R.id.checkBox2);

final RadioButton

radiobutton1=(RadioButton )this.findViewById(R.id.radioButton1); final RadioButton

radiobutton2=(RadioButton )this.findViewById(R.id.radioButton2);

/* CheckBox.OnClickListener checkboxListener=new CheckBox.OnClickListener() {

checkbox1.setOnClickListener(checkboxListener); checkbox2.setOnClickListener(checkboxListener);*/

public void onClick(View v) { } });

// TODO Auto-generated method stub tv.setText(\被选中\ };

public void onClick(View v) { }

// TODO Auto-generated method stub

tv.setText(\

checkbox1.setOnClickListener(new View.OnClickListener() {

checkbox2.setOnClickListener(new View.OnClickListener() {

}

@Override

public void onClick(View v) { } }); /* };

radiobutton1.setOnClickListener(radioButtonListener); radiobutton2.setOnClickListener(radioButtonListener);*/

public void onClick(View v) { } });

public void onClick(View v) { } }) ;

// TODO Auto-generated method stub tv.setText(\被选中\// TODO Auto-generated method stub tv.setText(\被选中\

RadioButton.OnClickListener radioButtonListener = new

public void onClick(View v) { }

// TODO Auto-generated method stub radiobutton1.setText(\radiobutton2.setText(\// TODO Auto-generated method stub tv.setText(\被选中\

RadioButton.OnClickListener() {

radiobutton1.setOnClickListener(new View.OnClickListener() {

radiobutton2.setOnClickListener(new View.OnClickListener() {

public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; }

}

Main.xml中的代码

xmlns:android=\ xmlns:tools=\ android:layout_width=\ android:layout_height=\ >

android:id=\

android:layout_width=\ android:layout_height=\ android:layout_centerHorizontal=\ android:layout_centerVertical=\ android:text=\ tools:context=\ />

android:id=\

android:layout_width=\ android:layout_height=\ android:layout_alignParentLeft=\ android:layout_alignParentTop=\ android:text=\ />

android:id=\

android:layout_width=\ android:layout_height=\ android:layout_alignParentLeft=\ android:layout_below=\ android:text=\ />

android:id=\ android:layout_width=\ android:layout_height=\ android:layout_alignParentLeft=\

android:layout_below=\ android:text=\ />

android:id=\ android:layout_width=\ android:layout_height=\ android:layout_alignParentLeft=\ android:layout_below=\ android:text=\ />

5.2.4spiner 代码 Main.xml代码

xmlns:android=\ android:layout_width=\ android:layout_height=\ >

android:id=\

android:layout_width=\ android:layout_height=\ android:layout_weight=\ />

Main代码

package lynu.cyp;

import java.util.ArrayList; import java.util.List;

import android.app.Activity; import android.os.Bundle; import android.view.Menu;

import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.TextView;

public class SpinnerActivity extends Activity {