标签：CheckBox menu private add 第二周 import id
纯属Android端页面UI学习
1.底部导航栏BottomNavigationView
xml代码简单，需要两个组件 fragment 和 com.google.android.material.bottomnavigation.BottomNavigationView
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<fragment
android:id="@+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="408dp"
android:layout_height="645dp"
android:layout_marginBottom="70dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="@id/nav_view"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0"
app:navGraph="@navigation/mobile_navigation" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="70dp"
android:background="?android:attr/windowBackground"
app:itemTextColor="#7C7C44"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/nav_host_fragment"
app:layout_constraintVertical_bias="0.0"
app:menu="@menu/bottom_nav_menu">
</com.google.android.material.bottomnavigation.BottomNavigationView>
<TextView
android:id="@+id/tv_test"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/nav_view" />
</androidx.constraintlayout.widget.ConstraintLayout>
同时需要一个menu列表
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/navigation_home"
android:icon="@drawable/ic_danieledesantis_christmas_snowman"
android:title="@string/title_home"/>
<item
android:id="@+id/navigation_dashboard"
android:icon="@drawable/ic_danieledesantis_christmas_gift"
android:title="@string/title_dashboard"/>
<item
android:id="@+id/navigation_notifications"
android:icon="@drawable/ic_danieledesantis_christmas_wreath"
android:title="@string/title_notifications" />
<item
android:id="@+id/navigation_self"
android:icon="@drawable/ic_danieledesantis_christmas_santa_claus"
android:title="@string/title_self"/>
</menu>
navigation .xml文件
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/mobile_navigation"
app:startDestination="@+id/navigation_home">
<fragment
android:id="@+id/navigation_home"
android:name="com.example.big_creat.ui.home.HomeFragment"
android:label="@string/title_home"
tools:layout="@layout/fragment_home" />
<fragment
android:id="@+id/navigation_dashboard"
android:name="com.example.big_creat.ui.dashboard.DashboardFragment"
android:label="@string/title_dashboard"
tools:layout="@layout/fragment_dashboard" />
<fragment
android:id="@+id/navigation_notifications"
android:name="com.example.big_creat.ui.notifications.NotificationsFragment"
android:label="@string/title_notifications"
tools:layout="@layout/fragment_notifications" />
<fragment
android:id="@+id/navigation_self"
android:name="com.example.big_creat.ui.self.self"
android:label="@string/title_self"
tools:layout="@layout/self" />
</navigation>
JAVA 代码
package com.example.big_creat;
import android.annotation.SuppressLint;
import android.content.ClipData;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;
import com.google.android.material.bottomnavigation.BottomNavigationView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.navigation.NavController;
import androidx.navigation.NavDestination;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
public class MainActivity extends AppCompatActivity {
final private int RED = 110;
final private int GREEN = 111;
final private int BLUE = 112;
final private int YELLOW = 113;
final private int GRAY= 114;
final private int CYAN= 115;
final private int BLACK= 116;
private TextView tv_test;
@SuppressLint("ResourceAsColor")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BottomNavigationView navView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications, R.id.navigation_self)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupWithNavController(navView, navController);
tv_test = (TextView) findViewById(R.id.tv_test);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
menu.add(1,RED,4,"红色");
menu.add(1,GREEN,2,"绿色");
menu.add(1,BLUE,3,"蓝色");
menu.add(1,YELLOW,1,"黄色");
menu.add(1,GRAY,5,"灰色");
menu.add(1,CYAN,6,"蓝绿色");
menu.add(1,BLACK,7,"黑色");
menu.add(2,9,8,"黑色");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id){
case RED:
tv_test.setTextColor(Color.RED);
break;
case GREEN:
tv_test.setTextColor(Color.GREEN);
break;
case BLUE:
tv_test.setTextColor(Color.BLUE);
break;
case YELLOW:
tv_test.setTextColor(Color.YELLOW);
break;
case GRAY:
tv_test.setTextColor(Color.GRAY);
break;
case CYAN:
tv_test.setTextColor(Color.CYAN);
break;
case BLACK:
tv_test.setTextColor(Color.BLACK);
break;
case 9:
tv_test.setTextColor(Color.BLACK);
break;
}
return super.onOptionsItemSelected(item);
}
}
2.spinner组件——实现下拉选择选项
<Spinner
android:id="@+id/category"
android:layout_width="167dp"
android:layout_height="match_parent"
android:layout_marginLeft="10dp">
</Spinner>
java代码：
private Spinner spinner;
private ArrayList<dishess> mDate=null;
private BaseAdapter myAdadpter = null;
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add)；
mDate = new ArrayList<dishess>();
mDate.add(new dishess(getResources().getDrawable(R.mipmap.ic_launcher_huoguo),"火锅"));
mDate.add(new dishess(getResources().getDrawable(R.mipmap.ic_launcher_baozi),"包子"));
mDate.add(new dishess(getResources().getDrawable(R.mipmap.ic_launcher_kafei),"咖啡"));
mDate.add(new dishess(getResources().getDrawable(R.mipmap.ic_launcher_kuaizi),"筷子"));
mDate.add(new dishess(getResources().getDrawable(R.mipmap.ic_channel_foreground),"筷子"));
myAdadpter = new MyAdapter<dishess>(mDate,R.layout.item_spin_hero) {
@Override
public void bindView(ViewHolder holder, dishess obj) {
holder.setImageResource(R.id.img_dish,obj.getIcon());
holder.setText(R.id.text_dish,obj.getiName());
}
};
}
3.复选框
一连串<CheckBox>组件，定义不同的id和text
<CheckBox
android:id="@+id/bitter"
android:layout_width="53dp"
android:layout_height="30dp"
android:text="苦" />
<CheckBox
android:id="@+id/salt"
android:layout_width="53dp"
android:layout_height="30dp"
android:text="咸" />
<CheckBox
android:id="@+id/sour"
android:layout_width="53dp"
android:layout_height="30dp"
android:text="酸" />
<CheckBox
android:id="@+id/fresh"
android:layout_width="53dp"
android:layout_height="30dp"
android:text="鲜" />
<CheckBox
android:id="@+id/sweet"
android:layout_width="53dp"
android:layout_height="30dp"
android:text="甜" />
<CheckBox
android:id="@+id/spicy"
android:layout_width="62dp"
android:layout_height="33dp"
android:text="辣" />
java监听
private CheckBox sour;
private CheckBox sweet;
private CheckBox fresh;
private CheckBox spicy;
private CheckBox salt;
private CheckBox bitter;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add);
sour = (CheckBox)findViewById(R.id.sour);
salt = (CheckBox)findViewById(R.id.salt);
fresh = (CheckBox)findViewById(R.id.fresh);
bitter = (CheckBox)findViewById(R.id.bitter);
spicy = (CheckBox)findViewById(R.id.spicy);
sweet = (CheckBox)findViewById(R.id.sweet);
sour.setOnCheckedChangeListener(this);
sweet.setOnCheckedChangeListener(this);
spicy.setOnCheckedChangeListener(this);
salt.setOnCheckedChangeListener(this);
bitter.setOnCheckedChangeListener(this);
fresh.setOnCheckedChangeListener(this);
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(buttonView.isChecked())
Log.d("复选",buttonView.getText().toString());
}
标签：CheckBox,menu,private,add,第二周,import,id 来源： https://www.cnblogs.com/weidewozi/p/15032498.html
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