Android滑动删除activity
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Activity滑动一个不错的例子,保存下省的丢了
使用:public class NormalActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_normal);
SildingFinishLayout mSildingFinishLayout = (SildingFinishLayout) findViewById(R.id.sildingFinishLayout);
mSildingFinishLayout
.setOnSildingFinishListener(new OnSildingFinishListener() {
@Override
public void onSildingFinish() {
NormalActivity.this.finish();
}
});
mSildingFinishLayout.setTouchView(mSildingFinishLayout);
}
// Press the back button in mobile phone
@Override
public void onBackPressed() {
super.onBackPressed();
overridePendingTransition(0, R.anim.base_slide_right_out);
}
}
public class AbsActivity extends Activity {
private List<String> list = new ArrayList<String>();
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_abslistview);
for (int i = 0; i <= 30; i++) {
list.add("测试数据" + i);
}
ListView mListView = (ListView) findViewById(R.id.listView);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
AbsActivity.this, android.R.layout.simple_list_item_1, list);
mListView.setAdapter(adapter);
SildingFinishLayout mSildingFinishLayout = (SildingFinishLayout) findViewById(R.id.sildingFinishLayout);
mSildingFinishLayout
.setOnSildingFinishListener(new OnSildingFinishListener() {
@Override
public void onSildingFinish() {
AbsActivity.this.finish();
}
});
// touchView要设置到ListView上面
mSildingFinishLayout.setTouchView(mListView);
mListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
startActivity(new Intent(AbsActivity.this, NormalActivity.class));
overridePendingTransition(R.anim.base_slide_right_in,
R.anim.base_slide_remain);
}
});
}
// Press the back button in mobile phone
@Override
public void onBackPressed() {
super.onBackPressed();
overridePendingTransition(0, R.anim.base_slide_right_out);
}
}
public class ScrollActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scroll);
ScrollView mScrollView = (ScrollView) findViewById(R.id.scrollView1);
SildingFinishLayout mSildingFinishLayout = (SildingFinishLayout) findViewById(R.id.sildingFinishLayout);
mSildingFinishLayout
.setOnSildingFinishListener(new OnSildingFinishListener() {
@Override
public void onSildingFinish() {
ScrollActivity.this.finish();
}
});
// 设置touchView到ScrollView上面
mSildingFinishLayout.setTouchView(mScrollView);
}
// Press the back button in mobile phone
@Override
public void onBackPressed() {
super.onBackPressed();
overridePendingTransition(0, R.anim.base_slide_right_out);
}
}
package com.example.view;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.Scroller;
/**
* 自定义可以滑动的RelativeLayout, 类似于IOS的滑动删除页面效果,当我们要使用
* 此功能的时候,需要将该Activity的顶层布局设置为SildingFinishLayout,
* 然后需要调用setTouchView()方法来设置需要滑动的View
*
* @author xiaanming
*
* @blog http://blog.csdn.net/xiaanming
*
*/
public class SildingFinishLayout extends RelativeLayout implements
OnTouchListener {
/**
* SildingFinishLayout布局的父布局
*/
private ViewGroup mParentView;
/**
* 处理滑动逻辑的View
*/
private View touchView;
/**
* 滑动的最小距离
*/
private int mTouchSlop;
/**
* 按下点的X坐标
*/
private int downX;
/**
* 按下点的Y坐标
*/
private int downY;
/**
* 临时存储X坐标
*/
private int tempX;
/**
* 滑动类
*/
private Scroller mScroller;
/**
* SildingFinishLayout的宽度
*/
private int viewWidth;
/**
* 记录是否正在滑动
*/
private boolean isSilding;
private OnSildingFinishListener onSildingFinishListener;
private boolean isFinish;
public SildingFinishLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SildingFinishLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
mScroller = new Scroller(context);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
if (changed) {
// 获取SildingFinishLayout所在布局的父布局
mParentView = (ViewGroup) this.getParent();
viewWidth = this.getWidth();
}
}
/**
* 设置OnSildingFinishListener, 在onSildingFinish()方法中finish Activity
*
* @param onSildingFinishListener
*/
public void setOnSildingFinishListener(
OnSildingFinishListener onSildingFinishListener) {
this.onSildingFinishListener = onSildingFinishListener;
}
/**
* 设置Touch的View
*
* @param touchView
*/
public void setTouchView(View touchView) {
this.touchView = touchView;
touchView.setOnTouchListener(this);
}
public View getTouchView() {
return touchView;
}
/**
* 滚动出界面
*/
private void scrollRight() {
final int delta = (viewWidth + mParentView.getScrollX());
// 调用startScroll方法来设置一些滚动的参数,我们在computeScroll()方法中调用scrollTo来滚动item
mScroller.startScroll(mParentView.getScrollX(), 0, -delta + 1, 0,
Math.abs(delta));
postInvalidate();
}
/**
* 滚动到起始位置
*/
private void scrollOrigin() {
int delta = mParentView.getScrollX();
mScroller.startScroll(mParentView.getScrollX(), 0, -delta, 0,
Math.abs(delta));
postInvalidate();
}
/**
* touch的View是否是AbsListView, 例如ListView, GridView等其子类
*
* @return
*/
private boolean isTouchOnAbsListView() {
return touchView instanceof AbsListView ? true : false;
}
/**
* touch的view是否是ScrollView或者其子类
*
* @return
*/
private boolean isTouchOnScrollView() {
return touchView instanceof ScrollView ? true : false;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
downX = tempX = (int) event.getRawX();
downY = (int) event.getRawY();
break;
case MotionEvent.ACTION_MOVE:
int moveX = (int) event.getRawX();
int deltaX = tempX - moveX;
tempX = moveX;
if (Math.abs(moveX - downX) > mTouchSlop
&& Math.abs((int) event.getRawY() - downY) < mTouchSlop) {
isSilding = true;
// 若touchView是AbsListView,
// 则当手指滑动,取消item的点击事件,不然我们滑动也伴随着item点击事件的发生
if (isTouchOnAbsListView()) {
MotionEvent cancelEvent = MotionEvent.obtain(event);
cancelEvent
.setAction(MotionEvent.ACTION_CANCEL
| (event.getActionIndex() << MotionEvent.ACTION_POINTER_INDEX_SHIFT));
v.onTouchEvent(cancelEvent);
}
}
if (moveX - downX >= 0 && isSilding) {
mParentView.scrollBy(deltaX, 0);
// 屏蔽在滑动过程中ListView ScrollView等自己的滑动事件
if (isTouchOnScrollView() || isTouchOnAbsListView()) {
return true;
}
}
break;
case MotionEvent.ACTION_UP:
Log.d("liueg", "action_up");
isSilding = false;
if (mParentView.getScrollX() <= -viewWidth / 2) {
isFinish = true;
scrollRight();
} else {
scrollOrigin();
isFinish = false;
}
break;
}
// 假如touch的view是AbsListView或者ScrollView 我们处理完上面自己的逻辑之后
// 再交给AbsListView, ScrollView自己处理其自己的逻辑
if (isTouchOnScrollView() || isTouchOnAbsListView()) {
return v.onTouchEvent(event);
}
// 其他的情况直接返回true
return true;
}
@Override
public void computeScroll() {
// 调用startScroll的时候scroller.computeScrollOffset()返回true,
if (mScroller.computeScrollOffset()) {
mParentView.scrollTo(mScroller.getCurrX(), mScroller.getCurrY());
postInvalidate();
if (mScroller.isFinished()) {
if (onSildingFinishListener != null && isFinish) {
onSildingFinishListener.onSildingFinish();
}else{
//如果没有设置回调接口, 直接划到起始位置
}
}
}
}
public interface OnSildingFinishListener {
public void onSildingFinish();
}
}
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