ListView里面数据加载不全
hashmap里面明明是3对数据，显示出来只有一对 package com.example.which; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class ClothActivity extends Activity { private List> mData; public ListView list1; public int actiondownX,actionmoveX,actiondownY,actionmoveY; public ImageButton addbutton; public EditText editText; public String imessage; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_cloth); mData = getData(); MyAdapter adapter = new MyAdapter(this); list1=(ListView)findViewById(R.id.clothlistview) ; list1.setAdapter(adapter); addbutton=(ImageButton)findViewById(R.id.addcloth); editText=(EditText)findViewById(R.id.edittextcloth); addbutton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO 自动生成的方法存根 imessage=editText.getText().toString(); setTitle(imessage); } }); } //getData private List> getData() { List> list = new ArrayList>(); Map map = new HashMap(); map.put("title", "G1"); map.put("img", R.drawable.button_delete); list.add(map); map = new HashMap(); map.put("title", "G2"); map.put("img", R.drawable.button_delete); list.add(map); map = new HashMap(); map.put("title", "G3"); map.put("img", R.drawable.button_delete); list.add(map); return list; } //显示 public final class ViewHolder{ public ImageView img; public TextView title; } public class MyAdapter extends BaseAdapter{ private LayoutInflater mInflater; public MyAdapter(Context context){ this.mInflater = LayoutInflater.from(context); } @Override public int getCount() { // TODO Auto-generated method stub return mData.size(); } @Override public Object getItem(int arg0) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int arg0) { // TODO Auto-generated method stub return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { holder=new ViewHolder(); convertView = mInflater.inflate(R.layout.listitem, null); holder.img = (ImageView)convertView.findViewById(R.id.img); holder.title = (TextView)convertView.findViewById(R.id.title); convertView.setTag(holder); }else { holder = (ViewHolder)convertView.getTag(); } holder.img.setBackgroundResource((Integer)mData.get(position).get("img")); holder.title.setText((String)mData.get(position).get("title")); return convertView; } //点击添加、删除 /* class ClickEvent implements View.OnClickListener{ @Override public void onClick(View v) { switch (v.getId()) { case R.id.addcloth: imessage=editText.getText().toString(); setTitle(imessage); Toast.makeText(ClothActivity.this,"1", Toast.LENGTH_LONG).show(); break; } } } */ //滑动退出 } public boolean onTouchEvent(MotionEvent event){ int action=event.getAction(); switch (action) { case (MotionEvent.ACTION_DOWN): actiondownX=(int)event.getX(); Toast.makeText(ClothActivity.this,"1", Toast.LENGTH_LONG).show(); break; case (MotionEvent.ACTION_MOVE): actionmoveX=(int)event.getX(); break; case (MotionEvent.ACTION_UP): if((actiondownX>10*actionmoveX)&&((actiondownY-actionmoveY)<100)) { Intent intent = new Intent(); intent.setClass( ClothActivity.this,MainActivity.class); startActivity(intent); ClothActivity.this.finish(); } break; } return true; } }
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上面的看不清楚，效果图
package com.example.which; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class ClothActivity extends Activity { private List<Map<String, Object>> mData; public ListView list1; public int actiondownX,actionmoveX,actiondownY,actionmoveY; public ImageButton addbutton; public EditText editText; public String imessage; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_cloth); mData = getData(); MyAdapter adapter = new MyAdapter(this); list1=(ListView)findViewById(R.id.clothlistview) ; list1.setAdapter(adapter); addbutton=(ImageButton)findViewById(R.id.addcloth); editText=(EditText)findViewById(R.id.edittextcloth); addbutton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO 自动生成的方法存根 imessage=editText.getText().toString(); setTitle(imessage); } }); } //getData private List<Map<String, Object>> getData() { List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>(); map.put("title", "G1"); map.put("img", R.drawable.button_delete); list.add(map); map = new HashMap<String, Object>(); map.put("title", "G2"); map.put("img", R.drawable.button_delete); list.add(map); map = new HashMap<String, Object>(); map.put("title", "G3"); map.put("img", R.drawable.button_delete); list.add(map); return list; } //显示 public final class ViewHolder{ public ImageView img; public TextView title; } public class MyAdapter extends BaseAdapter{ private LayoutInflater mInflater; public MyAdapter(Context context){ this.mInflater = LayoutInflater.from(context); } @Override public int getCount() { // TODO Auto-generated method stub return mData.size(); } @Override public Object getItem(int arg0) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int arg0) { // TODO Auto-generated method stub return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { holder=new ViewHolder(); convertView = mInflater.inflate(R.layout.listitem, null); holder.img = (ImageView)convertView.findViewById(R.id.img); holder.title = (TextView)convertView.findViewById(R.id.title); convertView.setTag(holder); }else { holder = (ViewHolder)convertView.getTag(); } holder.img.setBackgroundResource((Integer)mData.get(position).get("img")); holder.title.setText((String)mData.get(position).get("title")); return convertView; } //点击添加、删除 /* class ClickEvent implements View.OnClickListener{ @Override public void onClick(View v) { switch (v.getId()) { case R.id.addcloth: imessage=editText.getText().toString(); setTitle(imessage); Toast.makeText(ClothActivity.this,"1", Toast.LENGTH_LONG).show(); break; } } } */ //滑动退出 } public boolean onTouchEvent(MotionEvent event){ int action=event.getAction(); switch (action) { case (MotionEvent.ACTION_DOWN): actiondownX=(int)event.getX(); Toast.makeText(ClothActivity.this,"1", Toast.LENGTH_LONG).show(); break; case (MotionEvent.ACTION_MOVE): actionmoveX=(int)event.getX(); break; case (MotionEvent.ACTION_UP): if((actiondownX>10*actionmoveX)&&((actiondownY-actionmoveY)<100)) { Intent intent = new Intent(); intent.setClass( ClothActivity.this,MainActivity.class); startActivity(intent); ClothActivity.this.finish(); } break; } return true; } }