Android viewPager图片从右向左滑动(Android viewPager image slide right to left)
我想添加一张图片幻灯片。 但不能从右向左滑动。 （用于阿拉伯语或希伯来语等语言）
我检查了几乎所有的答案在stackoverflow，但无法找到一个明确的解决方案。
我在这里写下整个代码。
请写清楚，我不是专业人士
主要活动;
package com.manishkpr.viewpagerimagegallery; import android.app.Activity; import android.os.Bundle; import android.support.v4.view.ViewPager; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager); ImageAdapter adapter = new ImageAdapter(this); viewPager.setAdapter(adapter); } }这里是ImageAdapter.java;
package com.manishkpr.viewpagerimagegallery; import android.content.Context; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; public class ImageAdapter extends PagerAdapter { Context context; private int[] GalImages = new int[] { R.drawable.one, R.drawable.two, R.drawable.three }; ImageAdapter(Context context){ this.context=context; } @Override public int getCount() { return GalImages.length; } @Override public boolean isViewFromObject(View view, Object object) { return view == ((ImageView) object); } @Override public Object instantiateItem(ViewGroup container, int position) { ImageView imageView = new ImageView(context); int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium); imageView.setPadding(padding, padding, padding, padding); imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE); imageView.setImageResource(GalImages[position]); ((ViewPager) container).addView(imageView, 0); return imageView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { ((ViewPager) container).removeView((ImageView) object); } }这里是布局文件;
<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" tools:context=".MainActivity" > <android.support.v4.view.ViewPager android:id="@+id/view_pager" android:layout_width="match_parent" android:layout_height="match_parent" /> </RelativeLayout>I want to add an image slide. But cannot make it slide from right to left. (for languages like Arabic or Hebrew)
I checked nearly all replies in stackoverflow, but can not find a clear solution.
I write here the whole code.
Please write me clearly, I am not a professional
mainActivity;
package com.manishkpr.viewpagerimagegallery; import android.app.Activity; import android.os.Bundle; import android.support.v4.view.ViewPager; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager); ImageAdapter adapter = new ImageAdapter(this); viewPager.setAdapter(adapter); } }here is the ImageAdapter.java;
package com.manishkpr.viewpagerimagegallery; import android.content.Context; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; public class ImageAdapter extends PagerAdapter { Context context; private int[] GalImages = new int[] { R.drawable.one, R.drawable.two, R.drawable.three }; ImageAdapter(Context context){ this.context=context; } @Override public int getCount() { return GalImages.length; } @Override public boolean isViewFromObject(View view, Object object) { return view == ((ImageView) object); } @Override public Object instantiateItem(ViewGroup container, int position) { ImageView imageView = new ImageView(context); int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium); imageView.setPadding(padding, padding, padding, padding); imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE); imageView.setImageResource(GalImages[position]); ((ViewPager) container).addView(imageView, 0); return imageView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { ((ViewPager) container).removeView((ImageView) object); } }and here is the layout file;
<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" tools:context=".MainActivity" > <android.support.v4.view.ViewPager android:id="@+id/view_pager" android:layout_width="match_parent" android:layout_height="match_parent" /> </RelativeLayout>最满意答案
创建一个布局文件pager_item.xml ：
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/imageView" /> </LinearLayout>像这样改变你的PagerAdapter：
public class ImageAdapter extends PagerAdapter { Context context; private int[] GalImages = new int[] { R.drawable.one, R.drawable.two, R.drawable.three }; LayoutInflater mLayoutInflater; ImageAdapter(Context context){ this.context=context; mLayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { return GalImages.length; } @Override public boolean isViewFromObject(View view, Object object) { return view == ((LinearLayout) object); } @Override public Object instantiateItem(ViewGroup container, int position) { View itemView = mLayoutInflater.inflate(R.layout.pager_item, container, false); ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView); imageView.setImageResource(GalImages[position]); container.addView(itemView); return itemView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((LinearLayout)object); } }编辑1：
public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager); ImageAdapter adapter = new ImageAdapter(this); viewPager.setAdapter(adapter); viewPager.setCurrentItem(adapter.getCount()-1); }一个恶作剧 ：
我希望这有帮助 ：）
Create a Layout file pager_item.xml:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/imageView" /> </LinearLayout>Change your PagerAdapter like this:
public class ImageAdapter extends PagerAdapter { Context context; private int[] GalImages = new int[] { R.drawable.one, R.drawable.two, R.drawable.three }; LayoutInflater mLayoutInflater; ImageAdapter(Context context){ this.context=context; mLayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { return GalImages.length; } @Override public boolean isViewFromObject(View view, Object object) { return view == ((LinearLayout) object); } @Override public Object instantiateItem(ViewGroup container, int position) { View itemView = mLayoutInflater.inflate(R.layout.pager_item, container, false); ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView); imageView.setImageResource(GalImages[position]); container.addView(itemView); return itemView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((LinearLayout)object); } }EDIT 1:
public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager); ImageAdapter adapter = new ImageAdapter(this); viewPager.setAdapter(adapter); viewPager.setCurrentItem(adapter.getCount()-1); }A trick :
I hope this helps :)
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