在标题。我想要有由2列组成的图片网格,每张图片必须具有相同的尺寸。用户应该能够点击每张图片进入全屏模式,然后从左到右滑动图片(在该模式下的全尺寸图片)。到目前为止,我制作了可点击元素的网格,但没有滑动它们的功能。这里是我的代码:Android画廊应用程序与滑动图片
activity_main.xml中
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.miki.androidtwo.MainActivity">
<GridView
android:id="@+id/grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="2"
android:scrollbars="vertical"
android:gravity="center">
</GridView>
</RelativeLayout>
activity_full_image.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
tools:context="com.example.miki.androidtwo.FullImageActivity">
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" />
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="I want to see other doggos" />
</RelativeLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GridView gridView = (GridView) findViewById(R.id.grid);
// Instance of ImageAdapter Class
gridView.setAdapter(new ImageAdapter(this));
/**
* On Click event for Single Gridview Item
* */
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
// Sending image id to FullScreenActivity
Intent i = new Intent(getApplicationContext(), FullImageActivity.class);
// passing array index
i.putExtra("id", position);
startActivity(i);
}
});
}
}
其他类FullImageActivity和ImageAdapter;他们非常明显而且简单,所以我不会发布它们。
如何实现此滑动图片功能?
如何确定网格中图片的尺寸与设备无关? 其实我认为我硬编码它的线:
imageView.setLayoutParams(new GridView.LayoutParams(480,402));
你能给出一些更多的提示和想法如何使用ViewPager和PagerAdapter?我应该把它放在ImageView和Button中的activity_full_image.xml和FullImageActivity类中适当的java代码之间? – monterinio