ImageView + Button 实现图片的切换功能(不少于 10 张);
实现结果
点击图片即可切换
activity_main.xml
<?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"
android:orientation="vertical"
tools:context="com.example.a86189.myapplication2.MainActivity">
<ImageView
android:id="@+id/image1"
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_gravity="center_horizontal"
android:layout_margin="10dp"
android:src="@drawable/a" />
<Button
android:id="@+id/but1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="10dp"
android:text="切换图片"/>
</LinearLayout>
MainActivity.java
package com.example.a86189.myapplication2;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
private ImageView image_1;
private Button but_1;
private int id=R.drawable.a;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image_1=(ImageView) findViewById(R.id.image1);
but_1=(Button) findViewById(R.id.but1);
but_1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(id==R.drawable.a)
id=R.drawable.b;
else if(id==R.drawable.b)
id=R.drawable.c;
else if(id==R.drawable.c)
id=R.drawable.d;
else if(id==R.drawable.d)
id=R.drawable.e;
else if(id==R.drawable.e)
id=R.drawable.f;
else if(id==R.drawable.f)
id=R.drawable.g;
else if(id==R.drawable.g)
id=R.drawable.h;
else if(id==R.drawable.h)
id=R.drawable.i;
else if(id==R.drawable.i)
id=R.drawable.j;
else {
id=R.drawable.k;
}
image_1.setImageResource(id);
}
});
}
}
最后还需将图片放入drawable
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