这是布局代码
<?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:orientation="vertical"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="请选择你喜欢的花!"
android:textSize="30dp"
android:textColor="@color/colorPrimaryDark"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:marqueeRepeatLimit="marquee_forever"
/>
<ImageView
android:id="@+id/imageview"
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_gravity="center_horizontal"
android:layout_weight="55"
/>
<RadioGroup
android:id="@+id/jpg_two"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb_meihua"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="梅花"
android:textSize="20dp" />
<RadioButton
android:id="@+id/rb_shinanhua"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text ="石楠花"
android:textSize="20dp"
/>
<RadioButton
android:id="@+id/rb_xiangyahua"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text ="象牙花"
android:textSize="20dp"
/>
</RadioGroup>
<RadioGroup
android:id="@+id/jpg_one"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb_xiuqiuhua"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="绣球花"
android:textSize="20dp" />
<RadioButton
android:id="@+id/rb_yulanhua"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text ="玉兰花"
android:textSize="20dp"
/>
<RadioButton
android:id="@+id/rb_mudan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text ="牡丹花"
android:textSize="20dp"
/>
</RadioGroup>
</LinearLayout>
</LinearLayout>
Java代码
package com.example.tht.zy;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.RadioButton;
public class MainActivity extends AppCompatActivity {
private ImageView imageView;
private RadioButton Xiangyahua;
private RadioButton Meihua;
private RadioButton Mudan;
private RadioButton Shinanhua;
private RadioButton Xiuqiuhua;
private RadioButton Yulanhua;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imageView = (ImageView) findViewById(R.id.imageview);
Xiangyahua = (RadioButton) findViewById(R.id.rb_xiangyahua);
Meihua = (RadioButton) findViewById(R.id.rb_meihua);
Mudan = (RadioButton) findViewById(R.id.rb_mudan);
Shinanhua = (RadioButton) findViewById(R.id.rb_shinanhua);
Xiuqiuhua = (RadioButton) findViewById(R.id.rb_xiuqiuhua);
Yulanhua = (RadioButton) findViewById(R.id.rb_yulanhua);
Xiangyahua.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clear1();
imageView.setImageResource(R.drawable.xiangyahua);
}
});
Meihua.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clear1();
imageView.setImageResource(R.drawable.meihua);
}
});
Shinanhua.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clear1();
imageView.setImageResource(R.drawable.shinanhua);
}
});
Xiuqiuhua.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clear2();
imageView.setImageResource(R.drawable.xiuqiuhua);
}
});
Yulanhua.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clear2();
imageView.setImageResource(R.drawable.yulanhua);
}
});
Mudan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clear2();
imageView.setImageResource(R.drawable.mudan);
}
});
}
void clear1() {
Xiangyahua.setChecked(false);
Meihua.setChecked(false);
Mudan.setChecked(false);
}
void clear2() {
Shinanhua.setChecked(false);
Xiuqiuhua.setChecked(false);
Yulanhua.setChecked(false);
}
}
布局代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.tht.zy.MainActivity">
<ImageView
android:id="@+id/dd"
android:layout_width="250dp"
android:layout_height="250dp"
android:src="@drawable/zz"
/>
</LinearLayout>
Java代码
package com.example.tht.zy;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private ImageView ZZ;
private long time;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ZZ = (ImageView) findViewById(R.id.dd);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if(event.getAction()==MotionEvent.ACTION_DOWN){
String ce="";
float x = event.getX();
float y = event.getY();
ZZ.setPadding((int)x-110,(int)y-310,0,0);
ce="x坐标:"+x+"ny坐标:"+y;
Toast.makeText(this,ce, Toast.LENGTH_SHORT).show();
}
return super.onTouchEvent(event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(event.getKeyCode()==KeyEvent.KEYCODE_BACK){
exit();
return false;
}
return super.onKeyDown(keyCode, event);
}
void exit(){
if(System.currentTimeMillis()-time>2500){
Toast.makeText(this,"再次点击退出程序!",Toast.LENGTH_SHORT).show();
time=System.currentTimeMillis();
}else {
finish();
}
}
}
转载于:https://www.cnblogs.com/thttt/p/6596914.html
