本文介绍了点击气球在图形页面应该开始另一项活动的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在应用程序中创建图形页面，也从我的JSON解析取值的MapView内部标记，并在弹出气球显示吧..再次气球图片中点击我应该开始一个新的，当我需要开始一个活动活动..请帮我找到一个解决方案。这是我的BallonItemizedOverlayclass
包com.smartmedia.salonaudi.map;进口的java.lang.reflect.Method;
进口的java.util.List;进口android.app.Activity;
进口android.content.Context;
进口android.graphics.drawable.Drawable;
进口android.util.Log;
进口android.view.MotionEvent;
进口android.view.View;
进口android.view.View.OnTouchListener;进口com.google.android.maps.GeoPoint;
进口com.google.android.maps.ItemizedOverlay;
进口com.google.android.maps.MapController;
进口com.google.android.maps.MapView;
进口com.google.android.maps.MapView.LayoutParams;
进口com.google.android.maps.Overlay;
进口com.google.android.maps.OverlayItem;
进口com.smartmedia.salonaudi.R;公共抽象类BalloonItemizedOverlay＆LT;项目扩展OverlayItem＆GT;扩展
ItemizedOverlay＆LT;项目＆GT; { 私人MapView类MapView类;
私人BalloonOverlayView＆LT;项目＆GT; balloonView;
私人查看clickRegion;
私人诠释viewOffset;
私人语境mContext;
私人活动mActivity;
私人布尔mCheckIn;
最后MapController MC; / **
*创建一个新BalloonItemizedOverlay
*
* @参数defaultMarker
* - 要在地图中的每个项目上画的有界绘制对象
*覆盖。
* @参数的MapView
* - 在其上覆盖物品的视图要绘制。
* /
公共BalloonItemizedOverlay（可绘制defaultMarker，MapView类MapView类）{
超（defaultMarker）;
this.mapView =图形页面;
mContext = mapView.getContext（）;
viewOffset = 0;
MC = mapView.getController（）;
} / **
*设置标记和的底部之间的水平距离
*信息气球。默认值是0，这对于中心为界运作良好
*标记。如果你的标记是中心底部为界，前加入调用此
*覆盖项目，以确保气球悬停完全标记上方。
*
* @参数像素
* - 中心点和的底部之间的填充
*信息气球。
* /
公共无效setBalloonBottomOffset（INT像素）{
viewOffset =像素;
} 公众诠释getBalloonBottomOffset（）{
返回viewOffset;
} / **
*覆盖此方法可在气球处理点击。默认情况下，不
*不并返回false。
*
* @参数指标
* - 它的气球窃听项目的索引。
返回：true，如果你处理的自来水，否则为false。
* /
保护布尔onBalloonTap（INT指数）{ 返回true;
} / *
*（非Javadoc中）
*
* @see com.google.android.maps.ItemizedOverlay＃中的onTap（INT）
* /
@覆盖
保护最终布尔中的onTap（INT指数）{ 布尔isRecycled;
最终诠释thisIndex;
的GeoPoint点; thisIndex =指数;
点= createItem中（指数）.getPoint（）; 如果（balloonView == NULL）{
balloonView = createBalloonOverlayView（）;
clickRegion =（查看）balloonView
.findViewById（R.id.balloon_inner_layout）;
isRecycled = FALSE;
}其他{
isRecycled = TRUE;
} balloonView.setVisibility（View.GONE）; 清单＆LT;＆叠加GT; mapOverlays =调用MapView.getOverlays（）;
如果（mapOverlays.size（）→1）{
hideOtherBalloons（mapOverlays）;
} balloonView.setData（createItem中（指数））;
MapView.LayoutParams PARAMS =新MapView.LayoutParams（
LayoutParams.WRAP_CONTENT，LayoutParams.WRAP_CONTENT，点，
MapView.LayoutParams.BOTTOM_CENTER）;
params.mode = MapView.LayoutParams.MODE_MAP; setBalloonTouchListener（thisIndex）; balloonView.setVisibility（View.VISIBLE）; 如果（isRecycled）{
balloonView.setLayoutParams（PARAMS）;
}其他{
mapView.addView（balloonView，则params）;
} mc.animateTo（点）; 返回true;
} / **
*创建气球视图。重写以创建一个子类查看可
*填充额外的子视图。
* /
保护BalloonOverlayView＆LT;项目＆GT; createBalloonOverlayView（）{
返回新BalloonOverlayView＆LT;项目＆GT;（getMapView（）的getContext（）。
getBalloonBottomOffset（））;
} / **
*暴露地图视图子类。由于创作的气球意见帮助。
* /
受保护的MapView getMapView（）{
返回图形页面;
} / **
*设置此覆盖的气球以GONE的可见性。
* /
保护无效hideBalloon（）{
如果（balloonView！= NULL）{
balloonView.setVisibility（View.GONE）;
}
} / **
*隐藏任何其他BalloonItemizedOverlay实例气球视图
*这可能是对的MapView present。
*
* @参数覆盖
* - 上的MapView覆盖（包括本）的列表。
* /
私人无效hideOtherBalloons（列表＆LT;＆叠加GT;覆盖）{ 对于（叠加覆盖：覆盖）{
如果（覆盖的instanceof BalloonItemizedOverlay＆LT;＆GT;＆放大器;＆安培;覆盖该=！）{
（（BalloonItemizedOverlay＆LT;＆GT;）叠加）.hideBalloon（）;
}
}
} / **
*设置气球onTouchListener显示，呼叫
*重写onBalloonTap如果实施。
*
* @参数thisIndex
* - 它的气球窃听项目的索引。
* /
私人无效setBalloonTouchListener（最终诠释thisIndex）{ 尝试{
@燮pressWarnings（未使用）
方法M = this.getClass（）。getDeclaredMethod（onBalloonTap
int.class）; clickRegion.setOnTouchListener（新OnTouchListener（）{
公共布尔onTouch（视图V，MotionEvent事件）{ 查看L =（（查看）v.getParent（））
.findViewById（R.id.balloon_main_layout）;
可绘制D = l.getBackground（）; 如果（event.getAction（）== MotionEvent.ACTION_DOWN）{
INT [] =状态{android.R.attr.state_ pressed};
如果（d.setState（州））{
d.invalidateSelf（）;
}
返回true;
}否则如果（event.getAction（）== MotionEvent.ACTION_UP）{
INT newStates [] = {};
如果（d.setState（newStates））{
d.invalidateSelf（）;
}
//调用覆盖的方法
onBalloonTap（thisIndex）;
返回true;
}其他{
返回false;
} }
}）; }赶上（SecurityException异常五）{
Log.e（BalloonItemizedOverlay
setBalloonTouchListener反射SecurityException异常）;
返回;
}赶上（NoSuchMethodException E）{
//方法不重写 - 什么都不做
返回;
} }}
解决方案
保护布尔onBalloonTap（INT指数）{
意图myintent =新意图（这一点，
secondactivity.class）;
mContext.startActivity（myintent）;
返回true;
}
i created mapview in my application,and also markers inside the mapview which takes values from my json parsing and displayed it in the ballon popup .. again i need to start an activity when clicking in the baloon image i should start a new activity.. please help me to find a solution.. This is my BallonItemizedOverlayclass
package com.smartmedia.salonaudi.map;
import java.lang.reflect.Method;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.MapView.LayoutParams;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
import com.smartmedia.salonaudi.R;
public abstract class BalloonItemizedOverlay<Item extends OverlayItem> extends
ItemizedOverlay<Item> {
private MapView mapView;
private BalloonOverlayView<Item> balloonView;
private View clickRegion;
private int viewOffset;
private Context mContext;
private Activity mActivity;
private boolean mCheckIn;
final MapController mc;
/**
* Create a new BalloonItemizedOverlay
*
* @param defaultMarker
* - A bounded Drawable to be drawn on the map for each item in
* the overlay.
* @param mapView
* - The view upon which the overlay items are to be drawn.
*/
public BalloonItemizedOverlay(Drawable defaultMarker, MapView mapView) {
super(defaultMarker);
this.mapView = mapView;
mContext = mapView.getContext();
viewOffset = 0;
mc = mapView.getController();
}
/**
* Set the horizontal distance between the marker and the bottom of the
* information balloon. The default is 0 which works well for center bounded
* markers. If your marker is center-bottom bounded, call this before adding
* overlay items to ensure the balloon hovers exactly above the marker.
*
* @param pixels
* - The padding between the center point and the bottom of the
* information balloon.
*/
public void setBalloonBottomOffset(int pixels) {
viewOffset = pixels;
}
public int getBalloonBottomOffset() {
return viewOffset;
}
/**
* Override this method to handle a "tap" on a balloon. By default, does
* nothing and returns false.
*
* @param index
* - The index of the item whose balloon is tapped.
* @return true if you handled the tap, otherwise false.
*/
protected boolean onBalloonTap(int index) {
return true;
}
/*
* (non-Javadoc)
*
* @see com.google.android.maps.ItemizedOverlay#onTap(int)
*/
@Override
protected final boolean onTap(int index) {
boolean isRecycled;
final int thisIndex;
GeoPoint point;
thisIndex = index;
point = createItem(index).getPoint();
if (balloonView == null) {
balloonView = createBalloonOverlayView();
clickRegion = (View) balloonView
.findViewById(R.id.balloon_inner_layout);
isRecycled = false;
} else {
isRecycled = true;
}
balloonView.setVisibility(View.GONE);
List<Overlay> mapOverlays = mapView.getOverlays();
if (mapOverlays.size() > 1) {
hideOtherBalloons(mapOverlays);
}
balloonView.setData(createItem(index));
MapView.LayoutParams params = new MapView.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, point,
MapView.LayoutParams.BOTTOM_CENTER);
params.mode = MapView.LayoutParams.MODE_MAP;
setBalloonTouchListener(thisIndex);
balloonView.setVisibility(View.VISIBLE);
if (isRecycled) {
balloonView.setLayoutParams(params);
} else {
mapView.addView(balloonView, params);
}
mc.animateTo(point);
return true;
}
/**
* Creates the balloon view. Override to create a sub-classed view that can
* populate additional sub-views.
*/
protected BalloonOverlayView<Item> createBalloonOverlayView() {
return new BalloonOverlayView<Item>(getMapView().getContext(),
getBalloonBottomOffset());
}
/**
* Expose map view to subclasses. Helps with creation of balloon views.
*/
protected MapView getMapView() {
return mapView;
}
/**
* Sets the visibility of this overlay's balloon view to GONE.
*/
protected void hideBalloon() {
if (balloonView != null) {
balloonView.setVisibility(View.GONE);
}
}
/**
* Hides the balloon view for any other BalloonItemizedOverlay instances
* that might be present on the MapView.
*
* @param overlays
* - list of overlays (including this) on the MapView.
*/
private void hideOtherBalloons(List<Overlay> overlays) {
for (Overlay overlay : overlays) {
if (overlay instanceof BalloonItemizedOverlay<?> && overlay != this) {
((BalloonItemizedOverlay<?>) overlay).hideBalloon();
}
}
}
/**
* Sets the onTouchListener for the balloon being displayed, calling the
* overridden onBalloonTap if implemented.
*
* @param thisIndex
* - The index of the item whose balloon is tapped.
*/
private void setBalloonTouchListener(final int thisIndex) {
try {
@SuppressWarnings("unused")
Method m = this.getClass().getDeclaredMethod("onBalloonTap",
int.class);
clickRegion.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
View l = ((View) v.getParent())
.findViewById(R.id.balloon_main_layout);
Drawable d = l.getBackground();
if (event.getAction() == MotionEvent.ACTION_DOWN) {
int[] states = { android.R.attr.state_pressed };
if (d.setState(states)) {
d.invalidateSelf();
}
return true;
} else if (event.getAction() == MotionEvent.ACTION_UP) {
int newStates[] = {};
if (d.setState(newStates)) {
d.invalidateSelf();
}
// call overridden method
onBalloonTap(thisIndex);
return true;
} else {
return false;
}
}
});
} catch (SecurityException e) {
Log.e("BalloonItemizedOverlay",
"setBalloonTouchListener reflection SecurityException");
return;
} catch (NoSuchMethodException e) {
// method not overridden - do nothing
return;
}
}
}
解决方案
protected boolean onBalloonTap(int index) {
Intent myintent = new Intent(this,
secondactivity.class);
mContext.startActivity(myintent);
return true;
}
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