android view的显示/隐藏以及DEMO

View v1;

v1.setVisibility(View.VISIBLE); //正常显示

v1.setVisibility(View.INVISIBLE); //隐藏参与布局（还占着地方）

v1.setVisibility(View.GONE); //隐藏不参与布局（不占地方）

import java.util.ArrayList;

import java.util.List;

import com.jiuqi.muchmore.clothing.R;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ImageButton;

import android.widget.ListView;

import android.widget.RadioGroup;

import android.widget.TextView;

public class B extends Activity{

private ImageButton title_add_bn;

List<Restaurant> model = new ArrayList<Restaurant>();

ArrayAdapter<Restaurant> adapter = null;

@Override

protected void onCreate(Bundle savedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.b);

final View v1 = findViewById(R.id.details);

title_add_bn = (ImageButton)findViewById(R.id.title_add_bn);

title_add_bn.setOnClickListener(new OnClickListener(){

@Override

public void onClick(View v){

if(v1.getVisibility() == View.GONE){

v1.setVisibility(View.VISIBLE);

}

else{

v1.setVisibility(View.GONE);

}

}

});

Button save = (Button)findViewById(R.id.save);

save.setOnClickListener(onSave);

ListView list = (ListView)findViewById(R.id.restaurants);

adapter = new ArrayAdapter<Restaurant>(this, android.R.layout.simple_list_item_1, model);

list.setAdapter(adapter);

}

private View.OnClickListener onSave = new View.OnClickListener(){

public void onClick(View v){

Restaurant r = new Restaurant();

EditText name = (EditText)findViewById(R.id.name);

EditText address = (EditText)findViewById(R.id.addr);

r.setName(name.getText().toString());

r.setAddress(address.getText().toString());

RadioGroup types = (RadioGroup)findViewById(R.id.types);

switch(types.getCheckedRadioButtonId()){

case R.id.sit_down:

r.setType("sit_down");

break;

case R.id.take_out:

r.setType("take_out");

break;

case R.id.delivery:

r.setType("delivery");

break;

}

adapter.add(r);

}

};

}

class Restaurant{

private String name = "";

private String address = "";

private String type = "";

public String getName(){

return (name);

}

public void setName(String name){

this.name = name;

}

public String getAddress(){

return (address);

}

public void setAddress(String address){

this.address = address;

}

public String getType(){

return (type);

}

public void setType(String type){

this.type = type;

}

}