Android仿头条频道管理
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XML文件：
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:background="#CC3131" android:id="@+id/title" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <Button android:layout_width="30dp" android:layout_height="30dp" android:background="@drawable/fanhui" android:layout_gravity="center" /> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="频道管理" android:textColor="#fff" android:gravity="center" android:textSize="23sp" android:padding="8dp" /> </LinearLayout> <ScrollView android:layout_below="@id/title" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:id="@+id/subscribe_main_layout" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" android:paddingBottom="14.0dip"> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="10.0dip" android:layout_marginTop="14.0dip" android:gravity="bottom" android:orientation="horizontal"> <TextView android:id="@+id/my_category_tip_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="我的频道" android:textColor="#000" android:textSize="15sp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:textColor="#000" android:textSize="10dp" android:text="单击增删频道，长按拖拽排序" /> </LinearLayout> <View android:id="@+id/seperate_line" android:layout_width="match_parent" android:layout_height="0.5dp" android:layout_marginBottom="14.0dip" android:layout_marginTop="10dp" /> <com.example.e.mytoutiao.MyGridView android:id="@+id/userGridView" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="14dip" android:layout_marginRight="14dip" android:gravity="center" android:horizontalSpacing="14dip" android:listSelector="@android:color/transparent" android:numColumns="4" android:scrollbars="vertical" android:stretchMode="columnWidth" android:verticalSpacing="14.0px" /> <View android:id="@+id/seperate_line2" android:layout_width="match_parent" android:layout_height="0.5dp" android:layout_marginTop="10dp" /> <TextView android:id="@+id/more_category_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="14.0dip" android:layout_marginLeft="10.0dip" android:layout_marginTop="10dp" android:text="更多频道" android:textColor="#000" android:textSize="13sp" /> <com.example.e.mytoutiao.MyGridView android:id="@+id/otherGridView" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="14dip" android:layout_marginRight="14dip" android:gravity="center" android:horizontalSpacing="14dip" android:listSelector="@android:color/transparent" android:numColumns="4" android:scrollbars="vertical" android:stretchMode="columnWidth" android:verticalSpacing="14.0px" /> </LinearLayout> </ScrollView></RelativeLayout>--------------------------------------------------------------------------package com.example.e.mytoutiao;import android.graphics.Bitmap;import android.os.Bundle;import android.os.Handler;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.view.ViewGroup;import android.view.animation.Animation;import android.view.animation.AnimationSet;import android.view.animation.TranslateAnimation;import android.widget.AdapterView;import android.widget.GridView;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import java.util.ArrayList;import java.util.List;import adapter.OtherAdapter;/** * Created by e on 2017/6/22. */public class PingDaoGuanLiActivity extends AppCompatActivity implements AdapterView.OnItemClickListener { private MyGridView mUserGv, mOtherGv; private List<String> mUserList = new ArrayList<>(); private List<String> mOtherList = new ArrayList<>(); private OtherAdapter mUserAdapter, mOtherAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.pingdao_guanli); initView(); } public void initView() { mUserGv = (MyGridView) findViewById(R.id.userGridView); mOtherGv = (MyGridView) findViewById(R.id.otherGridView); mUserList.add("推荐"); mUserList.add("热点"); mUserList.add("上海"); mUserList.add("时尚"); mUserList.add("科技"); mUserList.add("体育"); mUserList.add("军事"); mUserList.add("财经"); mUserList.add("网络"); mOtherList.add("汽车"); mOtherList.add("房产"); mOtherList.add("社会"); mOtherList.add("情感"); mOtherList.add("女人"); mOtherList.add("旅游"); mOtherList.add("健康"); mOtherList.add("美女"); mOtherList.add("游戏"); mOtherList.add("数码"); mOtherList.add("娱乐"); mOtherList.add("探索"); mUserAdapter = new OtherAdapter(this, mUserList, true); mOtherAdapter = new OtherAdapter(this, mOtherList, false); mUserGv.setAdapter(mUserAdapter); mOtherGv.setAdapter(mOtherAdapter); mUserGv.setOnItemClickListener(this); mOtherGv.setOnItemClickListener(this); } /** * 获取点击的Item的对应View， * 因为点击的Item已经有了自己归属的父容器MyGridView，所有我们要是有一个ImageView来代替Item移动 * * @param view * @return */ private ImageView getView(View view) { view.destroyDrawingCache(); view.setDrawingCacheEnabled(true); Bitmap cache = Bitmap.createBitmap(view.getDrawingCache()); view.setDrawingCacheEnabled(false); ImageView iv = new ImageView(this); iv.setImageBitmap(cache); return iv; } /** * 获取移动的VIEW，放入对应ViewGroup布局容器 * * @param viewGroup * @param view * @param initLocation * @return */ private View getMoveView(ViewGroup viewGroup, View view, int[] initLocation) { int x = initLocation[0]; int y = initLocation[1]; viewGroup.addView(view); LinearLayout.LayoutParams mLayoutParams = new LinearLayout.LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); mLayoutParams.leftMargin = x; mLayoutParams.topMargin = y; view.setLayoutParams(mLayoutParams); return view; } /** * 创建移动的ITEM对应的ViewGroup布局容器 * 用于存放我们移动的View */ private ViewGroup getMoveViewGroup() { //window中最顶层的view ViewGroup moveViewGroup = (ViewGroup) getWindow().getDecorView(); LinearLayout moveLinearLayout = new LinearLayout(this); moveLinearLayout.setLayoutParams(new LinearLayout.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); moveViewGroup.addView(moveLinearLayout); return moveLinearLayout; } /** * 点击ITEM移动动画 * * @param moveView * @param startLocation * @param endLocation * @param moveChannel * @param clickGridView */ private void MoveAnim(View moveView, int[] startLocation, int[] endLocation, final String moveChannel, final GridView clickGridView, final boolean isUser) { int[] initLocation = new int[2]; //获取传递过来的VIEW的坐标 moveView.getLocationInWindow(initLocation); //得到要移动的VIEW,并放入对应的容器中 final ViewGroup moveViewGroup = getMoveViewGroup(); final View mMoveView = getMoveView(moveViewGroup, moveView, initLocation); //创建移动动画 TranslateAnimation moveAnimation = new TranslateAnimation( startLocation[0], endLocation[0], startLocation[1], endLocation[1]); moveAnimation.setDuration(300L);//动画时间 //动画配置 AnimationSet moveAnimationSet = new AnimationSet(true); moveAnimationSet.setFillAfter(false);//动画效果执行完毕后，View对象不保留在终止的位置 moveAnimationSet.addAnimation(moveAnimation); mMoveView.startAnimation(moveAnimationSet); moveAnimationSet.setAnimationListener(new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { moveViewGroup.removeView(mMoveView); // 判断点击的是DragGrid还是OtherGridView if (isUser) { mOtherAdapter.setVisible(true); mOtherAdapter.notifyDataSetChanged(); mUserAdapter.remove(); } else { mUserAdapter.setVisible(true); mUserAdapter.notifyDataSetChanged(); mOtherAdapter.remove(); } } }); } @Override public void onItemClick(AdapterView<?> parent, View view, final int position, long id) { switch (parent.getId()) { case R.id.userGridView: //position为 0，1 的不可以进行任何操作 if (position != 0 && position != 1) { final ImageView moveImageView = getView(view); if (moveImageView != null) { TextView newTextView = (TextView) view.findViewById(R.id.text_item); final int[] startLocation = new int[2]; newTextView.getLocationInWindow(startLocation); final String channel = ((OtherAdapter) parent.getAdapter()).getItem(position);//获取点击的频道内容 mOtherAdapter.setVisible(false); //添加到最后一个 mOtherAdapter.addItem(channel); new Handler().postDelayed(new Runnable() { public void run() { try { int[] endLocation = new int[2]; //获取终点的坐标 mOtherGv.getChildAt(mOtherGv.getLastVisiblePosition()).getLocationInWindow(endLocation); MoveAnim(moveImageView, startLocation, endLocation, channel, mUserGv, true); mUserAdapter.setRemove(position); } catch (Exception localException) { } } }, 50L); } } break; case R.id.otherGridView: final ImageView moveImageView = getView(view); if (moveImageView != null) { TextView newTextView = (TextView) view.findViewById(R.id.text_item); final int[] startLocation = new int[2]; newTextView.getLocationInWindow(startLocation); final String channel = ((OtherAdapter) parent.getAdapter()).getItem(position); mUserAdapter.setVisible(false); //添加到最后一个 mUserAdapter.addItem(channel); new Handler().postDelayed(new Runnable() { public void run() { try { int[] endLocation = new int[2]; //获取终点的坐标 mUserGv.getChildAt(mUserGv.getLastVisiblePosition()).getLocationInWindow(endLocation); MoveAnim(moveImageView, startLocation, endLocation, channel, mOtherGv, false); mOtherAdapter.setRemove(position); } catch (Exception localException) { } } }, 50L); } break; default: break; } }}--------------------------------------------------------------------------------------package adapter;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;import com.example.e.mytoutiao.R;import java.util.List;/** * Created by e on 2017/6/22. */public class OtherAdapter extends BaseAdapter { private Context context; public List<String> channelList; private TextView item_text; /** 是否可见 在移动动画完毕之前不可见，动画完毕后可见*/ boolean isVisible = true; /** 要删除的position */ public int remove_position = -1; /** 是否是用户频道 */ private boolean isUser = false; public OtherAdapter(Context context, List<String> channelList ,boolean isUser) { this.context = context; this.channelList = channelList; this.isUser = isUser; } @Override public int getCount() { return channelList == null ? 0 : channelList.size(); } @Override public String getItem(int position) { if (channelList != null && channelList.size() != 0) { return channelList.get(position); } return null; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { View view = LayoutInflater.from(context).inflate(R.layout.adapter_mygridview_item, null); item_text = (TextView) view.findViewById(R.id.text_item); String channel = getItem(position); item_text.setText(channel); if(isUser){ if ((position == 0) || (position == 1)){ item_text.setEnabled(false); } } if (!isVisible && (position == -1 + channelList.size())){ item_text.setText(""); item_text.setSelected(true); item_text.setEnabled(true); } if(remove_position == position){ item_text.setText(""); } return view; } /** 获取频道列表 */ public List<String> getChannnelLst() { return channelList; } /** 添加频道列表 */ public void addItem(String channel) { channelList.add(channel); notifyDataSetChanged(); } /** 设置删除的position */ public void setRemove(int position) { remove_position = position; notifyDataSetChanged(); // notifyDataSetChanged(); } /** 删除频道列表 */ public void remove() { channelList.remove(remove_position); remove_position = -1; notifyDataSetChanged(); } /** 设置频道列表 */ public void setListDate(List<String> list) { channelList = list; } /** 获取是否可见 */ public boolean isVisible() { return isVisible; } /** 设置是否可见 */ public void setVisible(boolean visible) { isVisible = visible; }}-----------------------------------------------------------------------------package com.example.e.mytoutiao;import android.content.Context;import android.util.AttributeSet;import android.widget.GridView;/** * Created by e on 2017/6/22. */public class MyGridView extends GridView{ public MyGridView(Context paramContext, AttributeSet paramAttributeSet) { super(paramContext, paramAttributeSet); } @Override public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, expandSpec); }}
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