我在Android开发新的,我已经看了看周围的几个代码合并,但没有运气..应用当按钮被按下它随机挑选的图像从绘制文件夹
所以我想创建一个Android应用程序,当按下按钮时,它随机从可绘制文件夹中选取图像,并且不能再按下按钮30秒。
任何帮助将受到欢迎。
Randomactivity.java
package com.example.no;
import java.util.Random;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View.OnClickListener;
public class RandomImage extends Activity implements OnClickListener{
private static final Random rgenerator = new Random();
Integer [] mImageIds = {
R.drawable.img1,
R.drawable.img2,
R.drawable.img3,
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Integer q = mImageIds[rgenerator.nextInt(mImageIds.length)];
ImageView iv = (ImageView) findViewById(R.id.imageviewyeah);
iv.setTag(q);
View nextButton = findViewById(R.id.next_image_button);
nextButton.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.next_image_button:
Intent i = new Intent(this, RandomImage.class);
startActivity(i);
break;
}
}
@Override
public boolean onCreateOptionsMenu (Menu menu) {
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected (MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
startActivity(new Intent(this, MainActivity.class));
return true;
}
return false;
}
}
- activity_main.xml中
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/widget0"
android:background="@drawable/bgi"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center" >
<ImageView
android:id="@+id/imageviewyeah"
android:tag="q"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center">
</ImageView>
<Button
android:id="@+id/next_image_button"
android:text="Next Image"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dip"
android:typeface="serif"/>
</LinearLayout>
-
请大家付出努力,我们不会只给你代码 –