listview 左滑弹出删除按钮,需要折腾一下
16lz
2021-01-23
基本上关键点在, 1事件, android:longClickable="true" android:descendantFocusability="blocksDescendants" 这个是在item子控件返回true 而使onInterceptTouchEvent 不停有事件来, 2 layout ,的设计,onLayout方法,relativeonLayout好像比较难达到这种拖后还有显示删除按钮 3,一些回调接口,方便toggle
import android.annotation.SuppressLint;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.widget.LinearLayout;
import android.widget.Scroller;
@SuppressLint("NewApi")
public class SlidingLeftLayout extends LinearLayout {
public SlidingLeftLayout(Context context) {
super(context);
init(context);
}
// public SlidingLeftLayout(Context context, AttributeSet attrs, int
// defStyle) {
// super(context, attrs, defStyle);
// init(context);
// }
public SlidingLeftLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public SlidingLeftLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
public void init(Context context) {
mContext = context;
mScroller = new Scroller(mContext);
ViewConfiguration config = ViewConfiguration.get(context);
mTouchSlop = config.getScaledTouchSlop();
mMinFlingVelocity = config.getScaledMinimumFlingVelocity();
setDescendantFocusability(FOCUS_AFTER_DESCENDANTS);
return;
}
private Context mContext;
private static String TAG = "SlidingLeftRelativeLayout";
private static final boolean DEBUG = true;
private static final int TOUCH_MODE_IDLE = 0;
private static final int TOUCH_MODE_DOWN = 1;
private static final int TOUCH_MODE_DRAGGING = 2;
private int mTouchMode;
private int mTouchSlop;
private VelocityTracker mVelocityTracker;
private int mMinFlingVelocity;
private float mTouchX;
private float mStartX;
private static final int SCREEN_ID_NORMAL = 0;
private static final int SCREEN_ID_LEFT = 1;
private int mCurScreen = SCREEN_ID_NORMAL;
private Scroller mScroller = null;
private int mScrollWidth = 120;
// @Override
// protected void onLayout(boolean changed, int l, int t, int r, int b) {
// super.onLayout(changed, l+mScrollWidth, t+mScrollWidth, r, b);
//
// }
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.setOrientation(LinearLayout.HORIZONTAL);
// super.onLayout(changed, l, t, r, b);
int height = getHeight();
int width = getWidth();
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child != null && child.getVisibility() != View.GONE) {
if (i == 0) {
child.layout(0, 0, width, height);
} else if (i == 1) {
child.layout(width, 0, width + mScrollWidth, height);
}
}
}
}
// @Override
public boolean onInterceptTouchEvent2(MotionEvent ev) {
final int action = ev.getActionMasked();
if (DEBUG) {
Log.d(TAG, "onInterceptTouchEvent action " + action);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent ACTION_UP");
if (mTouchMode == TOUCH_MODE_DRAGGING) {
// stopDrag(ev);
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + false);
return false;
}
// Nothing more to do here if we have decided whether or not we
// are dragging.
if (action != MotionEvent.ACTION_DOWN) {
if (mTouchMode == TOUCH_MODE_DRAGGING) {
if (DEBUG)
Log.v(TAG, "Intercept returning true!");
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
}
switch (action) {
case MotionEvent.ACTION_MOVE: {
switch (mTouchMode) {
case TOUCH_MODE_IDLE:
break;
case TOUCH_MODE_DOWN: {
final float x = ev.getX();
if (Math.abs(x - mTouchX) > mTouchSlop) {
mTouchMode = TOUCH_MODE_DRAGGING;
getParent().requestDisallowInterceptTouchEvent(true);
mTouchX = x;
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
break;
}
case TOUCH_MODE_DRAGGING: {
final float x = ev.getX();
final float dx = mTouchX - x;
mStartX = Math.abs(getScrollX());
float newPos = Math.max(0, Math.min(mStartX + dx, mScrollWidth));
if (newPos != mStartX) {
scrollTo((int) newPos, 0);
mTouchX = x;
invalidate();
}
}
}
break;
}
case MotionEvent.ACTION_DOWN: {
// if (mOnSlideListener != null) {
// mOnSlideListener.onSlidingStart(this);
// }
final float x = ev.getX();
mTouchMode = TOUCH_MODE_DOWN;
mTouchX = x;
}
}
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(ev);
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + (mTouchMode == TOUCH_MODE_DRAGGING));
return mTouchMode == TOUCH_MODE_DRAGGING;
}
public void shrink() {
if (getScrollX() != 0) {
this.smoothScrollTo(0, 0);
// this.scrollTo(0, 0);
}
}
private void smoothScrollTo(int destX, int destY) {
// 缓慢滚动到指定位置
int scrollX = getScrollX();
int delta = destX - scrollX;
mScroller.startScroll(scrollX, 0, delta, 0, Math.abs(delta) * 3);
invalidate();
}
@Override
public void computeScroll() {
if (mScroller.computeScrollOffset()) {
scrollTo(mScroller.getCurrX(), mScroller.getCurrY());
postInvalidate();
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = ev.getActionMasked();
if (DEBUG) {
Log.d(TAG, "onInterceptTouchEvent action " + action);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent ACTION_UP");
if (mTouchMode == TOUCH_MODE_DRAGGING) {
// stopDrag(ev);
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + false);
return false;
}
// Nothing more to do here if we have decided whether or not we
// are dragging.
if (action != MotionEvent.ACTION_DOWN) {
if (mTouchMode == TOUCH_MODE_DRAGGING) {
if (DEBUG)
Log.v(TAG, "Intercept returning true!");
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
}
switch (action) {
case MotionEvent.ACTION_MOVE: {
switch (mTouchMode) {
case TOUCH_MODE_IDLE:
break;
case TOUCH_MODE_DOWN: {
final float x = ev.getX();
if (Math.abs(x - mTouchX) > mTouchSlop) {
mTouchMode = TOUCH_MODE_DRAGGING;
getParent().requestDisallowInterceptTouchEvent(true);
mTouchX = x;
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
break;
}
case TOUCH_MODE_DRAGGING: {
final float x = ev.getX();
final float dx = mTouchX - x;
mStartX = Math.abs(getScrollX());
float newPos = Math.max(0, Math.min(mStartX + dx, mScrollWidth));
if (newPos != mStartX) {
scrollTo((int) newPos, 0);
mTouchX = x;
invalidate();
}
}
}
break;
}
case MotionEvent.ACTION_DOWN: {
if (mOnSlideListener != null) {
// mOnSlideListener.onSlideBack();
mOnSlideListener.onSlidingStart(this);
}
final float x = ev.getX();
mTouchMode = TOUCH_MODE_DOWN;
mTouchX = x;
}
}
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(ev);
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + (mTouchMode == TOUCH_MODE_DRAGGING));
return mTouchMode == TOUCH_MODE_DRAGGING;
}
public boolean onTouchEvent(MotionEvent event) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
final int action = event.getActionMasked();
if (DEBUG)
Log.d(TAG, "onTouchEvent action " + action);
switch (action) {
case MotionEvent.ACTION_DOWN: {
final float x = event.getX();
mTouchMode = TOUCH_MODE_DOWN;
mTouchX = x;
}
case MotionEvent.ACTION_MOVE: {
switch (mTouchMode) {
case TOUCH_MODE_IDLE:
break;
case TOUCH_MODE_DOWN: {
final float x = event.getX();
if (Math.abs(x - mTouchX) > mTouchSlop) {
mTouchMode = TOUCH_MODE_DRAGGING;
getParent().requestDisallowInterceptTouchEvent(true);
mTouchX = x;
return true;
}
break;
}
case TOUCH_MODE_DRAGGING: {
final float x = event.getX();
final float dx = mTouchX - x;
mStartX = Math.abs(getScrollX());
float newPos = Math.max(0, Math.min(mStartX + dx, mScrollWidth));
Log.d(TAG, "mStartX " + mStartX + " newPos " + newPos);
if (newPos != mStartX) {
scrollTo((int) newPos, 0);
mTouchX = x;
invalidate();
}
return true;
}
}
break;
}
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL: {
if (mTouchMode == TOUCH_MODE_DRAGGING) {
// stopDrag(event);
}
if (mOnSlideListener != null) {
mOnSlideListener.onSlideBack();
// mOnSlideListener.onSlidingStart(this);
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
break;
}
}
return true;
}
private OnSlideListener mOnSlideListener;
public interface OnSlideListener {
public void onSlideBack();
public void onSlidingStart(SlidingLeftLayout item);
}
public void setSlidingListener(OnSlideListener l) {
mOnSlideListener = l;
}
}
import java.io.File;
import java.util.LinkedList;
import org.json.JSONObject;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.leo.langtao.bean.FileBean;
import com.leo.langtao.fyrs.R;
import com.leo.langtao.util.BitmapUtil;
import com.leo.langtao.util.JsonUtil;
import com.leo.langtao.util.ViewUtil;
import com.leo.langtao.zxing.view.SlidingLeftLayout;
import com.leo.langtao.zxing.view.SlidingLeftLayout.OnSlideListener;
public class FileAdapter2 extends BaseAdapter implements OnSlideListener{
private Context mContext;
private LinkedList<String> mData;
private String mComer;
private SlidingAdapterInterface mListener;
private SlidingLeftLayout lastSlidingLeftLayout;
private SlidingLeftLayout nowSlidingLeftLayout;
public FileAdapter2(Context ctx, LinkedList<String> data,SlidingAdapterInterface listener) {
mContext = ctx;
mData = data;
mListener = listener;
}
public FileAdapter2(Context ctx, LinkedList<String> data) {
mContext = ctx;
mData = data;
}
public FileAdapter2(Context ctx, LinkedList<String> data, String comer) {
mContext = ctx;
mData = data;
mComer = comer;
}
@Override
public int getCount() {
return mData.size();
}
@Override
public Object getItem(int pos) {
return mData.get(pos);
}
@Override
public long getItemId(int pos) {
return pos;
}
@Override
public View getView(final int pos, View convertView, ViewGroup parent) {
ViewHolder vh = null;
if (convertView == null) {
convertView = LayoutInflater.from(mContext).inflate(
R.layout.item_activity_file_manager_list2, null);
vh = new ViewHolder();
vh.rlo = convertView.findViewById(R.id.rlo);
vh.tvName = ViewUtil.getTextViewById(convertView, R.id.tv_name);
vh.ivIcon = ViewUtil.getImageViewById(convertView, R.id.iv_icon);
vh.btnDel = ViewUtil.getButtonById(convertView, R.id.btn_del_file);
convertView.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
final String item = mData.get(pos);
final JSONObject json = JsonUtil.castStringToJson(item);
final FileBean bean = new FileBean(json);
vh.tvName.setText(bean.getName());
if (!bean.isFolder()) {
Bitmap bm = BitmapUtil.getBitmap(bean.getPath(), 50);
vh.ivIcon.setImageBitmap(bm);
}
vh.rlo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mListener.onListItemClick(pos);
}
});
vh.btnDel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new AlertDialog.Builder(mContext)
.setTitle(R.string.sure_delete)
.setPositiveButton(R.string.IDS_Btn_OK,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
File file = new File(bean.getPath());
if (file != null) {
try {
if (file.isFile()) {
file.delete();
} else if (file.isDirectory()) {
for (File f : file
.listFiles()) {
f.delete();
}
file.delete();
}
} catch (Exception e) {
e.printStackTrace();
}
mData.remove(pos);
notifyDataSetChanged();
}
}
})
.setNegativeButton(R.string.IDS_Btn_Quit,
null).show();
}
});
((SlidingLeftLayout)convertView.findViewById(R.id.slidingLeftLayout)).setSlidingListener(this);
((SlidingLeftLayout)convertView.findViewById(R.id.slidingLeftLayout)).shrink();
return convertView;
}
private class ViewHolder {
TextView tvName;
ImageView ivIcon;
Button btnDel;
View rlo;
}
public interface SlidingAdapterInterface{
void onListItemClick(int pos);
}
@Override
public void onSlideBack() {
if(lastSlidingLeftLayout!=null&&lastSlidingLeftLayout!=nowSlidingLeftLayout)
lastSlidingLeftLayout.shrink();
}
@Override
public void onSlidingStart(SlidingLeftLayout item) {
if(lastSlidingLeftLayout==null){
if(nowSlidingLeftLayout!=null){
lastSlidingLeftLayout = nowSlidingLeftLayout;
}
}else{
lastSlidingLeftLayout = nowSlidingLeftLayout;
}
nowSlidingLeftLayout = item;
}
}
<?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="wrap_content" >
<com.leo.langtao.zxing.view.SlidingLeftLayout
android:id="@+id/slidingLeftLayout"
android:layout_width="match_parent"
android:layout_height="50dip" >
<RelativeLayout
android:id="@+id/rlo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:longClickable="true"
android:descendantFocusability="blocksDescendants" >
<ImageView
android:id="@+id/iv_icon"
android:layout_width="32dip"
android:layout_height="32dip"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/padding_5dip"
android:layout_marginRight="@dimen/padding_5dip"
android:background="@drawable/icon_file_item"
android:focusable="false" />
<TextView
android:id="@+id/tv_name"
android:textSize="15sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/margin_8dip"
android:layout_toRightOf="@+id/iv_icon"
android:focusable="false"
android:text="家居1" />
</RelativeLayout>
<Button
android:id="@+id/btn_del_file"
android:layout_width="32dip"
android:layout_height="32dip"
android:layout_alignParentRight="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/padding_8dip"
android:layout_marginRight="@dimen/padding_8dip"
android:background="@drawable/btn_delete_up"
android:focusable="false" />
</com.leo.langtao.zxing.view.SlidingLeftLayout>
</RelativeLayout>
import android.annotation.SuppressLint;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.widget.LinearLayout;
import android.widget.Scroller;
@SuppressLint("NewApi")
public class SlidingLeftLayout extends LinearLayout {
public SlidingLeftLayout(Context context) {
super(context);
init(context);
}
// public SlidingLeftLayout(Context context, AttributeSet attrs, int
// defStyle) {
// super(context, attrs, defStyle);
// init(context);
// }
public SlidingLeftLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public SlidingLeftLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
public void init(Context context) {
mContext = context;
mScroller = new Scroller(mContext);
ViewConfiguration config = ViewConfiguration.get(context);
mTouchSlop = config.getScaledTouchSlop();
mMinFlingVelocity = config.getScaledMinimumFlingVelocity();
setDescendantFocusability(FOCUS_AFTER_DESCENDANTS);
return;
}
private Context mContext;
private static String TAG = "SlidingLeftRelativeLayout";
private static final boolean DEBUG = true;
private static final int TOUCH_MODE_IDLE = 0;
private static final int TOUCH_MODE_DOWN = 1;
private static final int TOUCH_MODE_DRAGGING = 2;
private int mTouchMode;
private int mTouchSlop;
private VelocityTracker mVelocityTracker;
private int mMinFlingVelocity;
private float mTouchX;
private float mStartX;
private static final int SCREEN_ID_NORMAL = 0;
private static final int SCREEN_ID_LEFT = 1;
private int mCurScreen = SCREEN_ID_NORMAL;
private Scroller mScroller = null;
private int mScrollWidth = 120;
// @Override
// protected void onLayout(boolean changed, int l, int t, int r, int b) {
// super.onLayout(changed, l+mScrollWidth, t+mScrollWidth, r, b);
//
// }
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.setOrientation(LinearLayout.HORIZONTAL);
// super.onLayout(changed, l, t, r, b);
int height = getHeight();
int width = getWidth();
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (child != null && child.getVisibility() != View.GONE) {
if (i == 0) {
child.layout(0, 0, width, height);
} else if (i == 1) {
child.layout(width, 0, width + mScrollWidth, height);
}
}
}
}
// @Override
public boolean onInterceptTouchEvent2(MotionEvent ev) {
final int action = ev.getActionMasked();
if (DEBUG) {
Log.d(TAG, "onInterceptTouchEvent action " + action);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent ACTION_UP");
if (mTouchMode == TOUCH_MODE_DRAGGING) {
// stopDrag(ev);
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + false);
return false;
}
// Nothing more to do here if we have decided whether or not we
// are dragging.
if (action != MotionEvent.ACTION_DOWN) {
if (mTouchMode == TOUCH_MODE_DRAGGING) {
if (DEBUG)
Log.v(TAG, "Intercept returning true!");
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
}
switch (action) {
case MotionEvent.ACTION_MOVE: {
switch (mTouchMode) {
case TOUCH_MODE_IDLE:
break;
case TOUCH_MODE_DOWN: {
final float x = ev.getX();
if (Math.abs(x - mTouchX) > mTouchSlop) {
mTouchMode = TOUCH_MODE_DRAGGING;
getParent().requestDisallowInterceptTouchEvent(true);
mTouchX = x;
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
break;
}
case TOUCH_MODE_DRAGGING: {
final float x = ev.getX();
final float dx = mTouchX - x;
mStartX = Math.abs(getScrollX());
float newPos = Math.max(0, Math.min(mStartX + dx, mScrollWidth));
if (newPos != mStartX) {
scrollTo((int) newPos, 0);
mTouchX = x;
invalidate();
}
}
}
break;
}
case MotionEvent.ACTION_DOWN: {
// if (mOnSlideListener != null) {
// mOnSlideListener.onSlidingStart(this);
// }
final float x = ev.getX();
mTouchMode = TOUCH_MODE_DOWN;
mTouchX = x;
}
}
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(ev);
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + (mTouchMode == TOUCH_MODE_DRAGGING));
return mTouchMode == TOUCH_MODE_DRAGGING;
}
public void shrink() {
if (getScrollX() != 0) {
this.smoothScrollTo(0, 0);
// this.scrollTo(0, 0);
}
}
private void smoothScrollTo(int destX, int destY) {
// 缓慢滚动到指定位置
int scrollX = getScrollX();
int delta = destX - scrollX;
mScroller.startScroll(scrollX, 0, delta, 0, Math.abs(delta) * 3);
invalidate();
}
@Override
public void computeScroll() {
if (mScroller.computeScrollOffset()) {
scrollTo(mScroller.getCurrX(), mScroller.getCurrY());
postInvalidate();
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = ev.getActionMasked();
if (DEBUG) {
Log.d(TAG, "onInterceptTouchEvent action " + action);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent ACTION_UP");
if (mTouchMode == TOUCH_MODE_DRAGGING) {
// stopDrag(ev);
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + false);
return false;
}
// Nothing more to do here if we have decided whether or not we
// are dragging.
if (action != MotionEvent.ACTION_DOWN) {
if (mTouchMode == TOUCH_MODE_DRAGGING) {
if (DEBUG)
Log.v(TAG, "Intercept returning true!");
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
}
switch (action) {
case MotionEvent.ACTION_MOVE: {
switch (mTouchMode) {
case TOUCH_MODE_IDLE:
break;
case TOUCH_MODE_DOWN: {
final float x = ev.getX();
if (Math.abs(x - mTouchX) > mTouchSlop) {
mTouchMode = TOUCH_MODE_DRAGGING;
getParent().requestDisallowInterceptTouchEvent(true);
mTouchX = x;
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + true);
return true;
}
break;
}
case TOUCH_MODE_DRAGGING: {
final float x = ev.getX();
final float dx = mTouchX - x;
mStartX = Math.abs(getScrollX());
float newPos = Math.max(0, Math.min(mStartX + dx, mScrollWidth));
if (newPos != mStartX) {
scrollTo((int) newPos, 0);
mTouchX = x;
invalidate();
}
}
}
break;
}
case MotionEvent.ACTION_DOWN: {
if (mOnSlideListener != null) {
// mOnSlideListener.onSlideBack();
mOnSlideListener.onSlidingStart(this);
}
final float x = ev.getX();
mTouchMode = TOUCH_MODE_DOWN;
mTouchX = x;
}
}
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(ev);
if (DEBUG)
Log.d(TAG, "onInterceptTouchEvent return " + (mTouchMode == TOUCH_MODE_DRAGGING));
return mTouchMode == TOUCH_MODE_DRAGGING;
}
public boolean onTouchEvent(MotionEvent event) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
final int action = event.getActionMasked();
if (DEBUG)
Log.d(TAG, "onTouchEvent action " + action);
switch (action) {
case MotionEvent.ACTION_DOWN: {
final float x = event.getX();
mTouchMode = TOUCH_MODE_DOWN;
mTouchX = x;
}
case MotionEvent.ACTION_MOVE: {
switch (mTouchMode) {
case TOUCH_MODE_IDLE:
break;
case TOUCH_MODE_DOWN: {
final float x = event.getX();
if (Math.abs(x - mTouchX) > mTouchSlop) {
mTouchMode = TOUCH_MODE_DRAGGING;
getParent().requestDisallowInterceptTouchEvent(true);
mTouchX = x;
return true;
}
break;
}
case TOUCH_MODE_DRAGGING: {
final float x = event.getX();
final float dx = mTouchX - x;
mStartX = Math.abs(getScrollX());
float newPos = Math.max(0, Math.min(mStartX + dx, mScrollWidth));
Log.d(TAG, "mStartX " + mStartX + " newPos " + newPos);
if (newPos != mStartX) {
scrollTo((int) newPos, 0);
mTouchX = x;
invalidate();
}
return true;
}
}
break;
}
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL: {
if (mTouchMode == TOUCH_MODE_DRAGGING) {
// stopDrag(event);
}
if (mOnSlideListener != null) {
mOnSlideListener.onSlideBack();
// mOnSlideListener.onSlidingStart(this);
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
break;
}
}
return true;
}
private OnSlideListener mOnSlideListener;
public interface OnSlideListener {
public void onSlideBack();
public void onSlidingStart(SlidingLeftLayout item);
}
public void setSlidingListener(OnSlideListener l) {
mOnSlideListener = l;
}
}
import java.io.File;
import java.util.LinkedList;
import org.json.JSONObject;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.leo.langtao.bean.FileBean;
import com.leo.langtao.fyrs.R;
import com.leo.langtao.util.BitmapUtil;
import com.leo.langtao.util.JsonUtil;
import com.leo.langtao.util.ViewUtil;
import com.leo.langtao.zxing.view.SlidingLeftLayout;
import com.leo.langtao.zxing.view.SlidingLeftLayout.OnSlideListener;
public class FileAdapter2 extends BaseAdapter implements OnSlideListener{
private Context mContext;
private LinkedList<String> mData;
private String mComer;
private SlidingAdapterInterface mListener;
private SlidingLeftLayout lastSlidingLeftLayout;
private SlidingLeftLayout nowSlidingLeftLayout;
public FileAdapter2(Context ctx, LinkedList<String> data,SlidingAdapterInterface listener) {
mContext = ctx;
mData = data;
mListener = listener;
}
public FileAdapter2(Context ctx, LinkedList<String> data) {
mContext = ctx;
mData = data;
}
public FileAdapter2(Context ctx, LinkedList<String> data, String comer) {
mContext = ctx;
mData = data;
mComer = comer;
}
@Override
public int getCount() {
return mData.size();
}
@Override
public Object getItem(int pos) {
return mData.get(pos);
}
@Override
public long getItemId(int pos) {
return pos;
}
@Override
public View getView(final int pos, View convertView, ViewGroup parent) {
ViewHolder vh = null;
if (convertView == null) {
convertView = LayoutInflater.from(mContext).inflate(
R.layout.item_activity_file_manager_list2, null);
vh = new ViewHolder();
vh.rlo = convertView.findViewById(R.id.rlo);
vh.tvName = ViewUtil.getTextViewById(convertView, R.id.tv_name);
vh.ivIcon = ViewUtil.getImageViewById(convertView, R.id.iv_icon);
vh.btnDel = ViewUtil.getButtonById(convertView, R.id.btn_del_file);
convertView.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
final String item = mData.get(pos);
final JSONObject json = JsonUtil.castStringToJson(item);
final FileBean bean = new FileBean(json);
vh.tvName.setText(bean.getName());
if (!bean.isFolder()) {
Bitmap bm = BitmapUtil.getBitmap(bean.getPath(), 50);
vh.ivIcon.setImageBitmap(bm);
}
vh.rlo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mListener.onListItemClick(pos);
}
});
vh.btnDel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new AlertDialog.Builder(mContext)
.setTitle(R.string.sure_delete)
.setPositiveButton(R.string.IDS_Btn_OK,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
File file = new File(bean.getPath());
if (file != null) {
try {
if (file.isFile()) {
file.delete();
} else if (file.isDirectory()) {
for (File f : file
.listFiles()) {
f.delete();
}
file.delete();
}
} catch (Exception e) {
e.printStackTrace();
}
mData.remove(pos);
notifyDataSetChanged();
}
}
})
.setNegativeButton(R.string.IDS_Btn_Quit,
null).show();
}
});
((SlidingLeftLayout)convertView.findViewById(R.id.slidingLeftLayout)).setSlidingListener(this);
((SlidingLeftLayout)convertView.findViewById(R.id.slidingLeftLayout)).shrink();
return convertView;
}
private class ViewHolder {
TextView tvName;
ImageView ivIcon;
Button btnDel;
View rlo;
}
public interface SlidingAdapterInterface{
void onListItemClick(int pos);
}
@Override
public void onSlideBack() {
if(lastSlidingLeftLayout!=null&&lastSlidingLeftLayout!=nowSlidingLeftLayout)
lastSlidingLeftLayout.shrink();
}
@Override
public void onSlidingStart(SlidingLeftLayout item) {
if(lastSlidingLeftLayout==null){
if(nowSlidingLeftLayout!=null){
lastSlidingLeftLayout = nowSlidingLeftLayout;
}
}else{
lastSlidingLeftLayout = nowSlidingLeftLayout;
}
nowSlidingLeftLayout = item;
}
}
<?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="wrap_content" >
<com.leo.langtao.zxing.view.SlidingLeftLayout
android:id="@+id/slidingLeftLayout"
android:layout_width="match_parent"
android:layout_height="50dip" >
<RelativeLayout
android:id="@+id/rlo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:longClickable="true"
android:descendantFocusability="blocksDescendants" >
<ImageView
android:id="@+id/iv_icon"
android:layout_width="32dip"
android:layout_height="32dip"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/padding_5dip"
android:layout_marginRight="@dimen/padding_5dip"
android:background="@drawable/icon_file_item"
android:focusable="false" />
<TextView
android:id="@+id/tv_name"
android:textSize="15sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/margin_8dip"
android:layout_toRightOf="@+id/iv_icon"
android:focusable="false"
android:text="家居1" />
</RelativeLayout>
<Button
android:id="@+id/btn_del_file"
android:layout_width="32dip"
android:layout_height="32dip"
android:layout_alignParentRight="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/padding_8dip"
android:layout_marginRight="@dimen/padding_8dip"
android:background="@drawable/btn_delete_up"
android:focusable="false" />
</com.leo.langtao.zxing.view.SlidingLeftLayout>
</RelativeLayout>