MainActivity
package com.example.lenovo.myapplication;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Switch;
import android.widget.Toast;
import android.widget.ToggleButton;
public class TextActivity1 extends AppCompatActivity {
RadioGroup rg_1;
RadioButton nan;
RadioButton nv;
CheckBox cb_1;
CheckBox cb_2;
ToggleButton tb_1;
Switch sw_1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_text1);
rg_1=(RadioGroup)findViewById(R.id.rg_1);
nan=(RadioButton)findViewById(R.id.nan);
nv=(RadioButton)findViewById(R.id.nv);
cb_1=(CheckBox)findViewById(R.id.cb_1);
cb_2=(CheckBox)findViewById(R.id.cb_2);
tb_1=(ToggleButton)findViewById(R.id.tb_1);
sw_1=(Switch)findViewById(R.id.sw_1);
tb_1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Toast.makeText(TextActivity1.this, "ToggleButton开关状态:"+(isChecked?"开":"关"), Toast.LENGTH_SHORT).show();
}
});
sw_1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Toast.makeText(TextActivity1.this, "Switch开关状态:"+(isChecked?"开":"关"), Toast.LENGTH_SHORT).show();
}
});
//加监听器.监听器的实例
CB_OnCheckedChangeListener cb1=new CB_OnCheckedChangeListener();
//监听器绑定
cb_1.setOnCheckedChangeListener(cb1);
cb_2.setOnCheckedChangeListener(cb1);
rg_1.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
//被选中的组件id。RadioButton的id
public void onCheckedChanged(RadioGroup group, int checkedId) {
//提示选中的内容
//判断谁被选中
if (checkedId==nan.getId())
{
Toast.makeText(TextActivity1.this, "选中的是:"+nan.getText(), Toast.LENGTH_SHORT).show();
}
else if (checkedId==nv.getId())
{
Toast.makeText(TextActivity1.this, "选中的是:"+nv.getText(), Toast.LENGTH_SHORT).show();
}
}
});
}
//公共的复选按钮的监听器
class CB_OnCheckedChangeListener implements CompoundButton.OnCheckedChangeListener
{
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
CheckBox cb=(CheckBox)buttonView;
String str=cb.getText().toString();
if (isChecked)
{
Toast.makeText(TextActivity1.this, "被选中", Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(TextActivity1.this, "被取消选中", Toast.LENGTH_SHORT).show();
}
}
}
}
activity_main
<?xml version="1.0" encoding="utf-8"?> <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" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.lenovo.myapplication.TextActivity1" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <ImageButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/nnn"/> <ImageButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/abc"/> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/nnn" android:text="普通按钮可以加字"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/qq" android:alpha="1" android:background="#F00" android:scaleType="center"/> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/qq" android:alpha="1" android:background="#F00" android:scaleType="centerCrop"/> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/abc" android:alpha="1" android:background="#F00" android:scaleType="centerInside"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/abc" android:alpha="1" android:background="#F00" android:scaleType="matrix"/> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/abc" android:alpha="1" android:background="#F00" android:scaleType="fitCenter"/> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/abc" android:alpha="1" android:background="#F00" android:scaleType="fitXY"/> </LinearLayout> <RadioGroup android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/rg_1" android:orientation="horizontal"> <RadioButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="单选,男" android:checked="true" android:id="@+id/nan"/> <RadioButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="单选,女" android:id="@+id/nv"/> </RadioGroup> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="范冰冰" android:id="@+id/cb_1" android:checked="true"/> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="章子怡" android:id="@+id/cb_2"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <ToggleButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:textOn="开" android:textOff="关" android:id="@+id/tb_1"/> <Switch android:layout_width="wrap_content" android:layout_height="wrap_content" android:textOff="关" android:textOn="开" android:text="开关" android:id="@+id/sw_1"/> </LinearLayout> </LinearLayout>