弹出窗口是不是在我工作的活动 [英] Popup Window is not work in my activity
本文介绍了弹出窗口是不是在我工作的活动的处理方法，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
我已经在一个应用程序中实现弹出窗口。我有<样本code href=\"http://javabeginnerstutorial.com/android-tutorial/how-to-create-popups-in-android-2/#comment-2236\"相对=nofollow>这。如果我实现我的这个活动code比它不工作。所以我不能发现我的错误。任何一个可以帮助我。
Unlock_hud.java：
= INF（LayoutInflater）getApplicationContext（）。getSystemService（
Context.LAYOUT_INFLATER_SERVICE）;
MyView的= inf.inflate（R.layout.unlock_launcher，NULL）;
收到=（按钮）myview.findViewById（R.id.receive1）;
拒绝=（按钮）myview.findViewById（R.id.reject12）;
slidehandlebutton =（按钮）myview.findViewById（R.id.slidehandlebutton）;
slidehandlebutton.setOnClickListener（本）;
处理器公顷=新的处理程序（）;
ha.postDelayed（新的Runnable（）{ @覆盖
公共无效的run（）{
ActivityManager mActivityManager =（ActivityManager）getSystemService（活动）;
清单＆LT; RunningTaskInfo＆GT; list_running = mActivityManager
.getRunningTasks（2147483647）;
清单＆LT; RecentTaskInfo＆GT; list_recent = mActivityManager
.getRecentTasks（2147483647，1）; Log.d（主，跑+ list_running.get（0）.topActivity）;
Log.d（主，最近+ list_recent.get（0）.baseIntent）;
/ *意图homeIntent =新意图（Intent.ACTION_MAIN）;
homeIntent.addCategory（Intent.CATEGORY_HOME）;
homeIntent.setFlags（Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_ preVIOUS_IS_TOP）;
startActivity（homeIntent）; * /
// Log.d（主，自由记忆：+ getUsedMemorySize（））;
preFS = preferenceManager
.getDefaultShared preferences（getApplicationContext（））; } }，500）
}@覆盖
公共无效的onDestroy（）{
super.onDestroy（）;
Log.d（主，的OnDestroy）;
// lock.reenableKeyguard（）;
如果（call_flag＆安培;！＆安培;！WM2 = NULL）{
如果（receive_flag）{
如果（isaddView）{
wm2.removeView（MyView的）;
} }其他{
wm2.removeView（new_view）;
} edit.putBoolean（旗帜，FALSE）;
edit.commit（）;
call_flag = TRUE;
如果（CheckMissCall.bmp！= NULL）{
CheckMissCall.bmp.recycle（）;
CheckMissCall.bmp = NULL;
} }}
@覆盖
公共无效的onClick（查看为arg0）{
开关（arg0.getId（））{ 案例R.id.slidehandlebutton：
如果（P！= NULL）
showPopup（Unlock_hud.this页）;
打破;
}
}公共无效onWindowFocusChanged（布尔hasFocus）{ INT [] =位置INT新[2];
Button按钮=（按钮）MyView的。 findViewById（R.id.slidehandlebutton）; //获取x，y位置，并将其存储位置[]数组中
//位置[0] = X，位置[1] = Y。
button.getLocationOnScreen（位置）; //初始化为x点，和y位置
P =新点（）;
p.x =位置[0];
p.y =位置[1];
}私人无效showPopup（上下文的背景下，P2点）{
// TODO自动生成方法存根
INT popupWidth = 180;
INT popupHeight = 80; //充气popup_layout.xml
LinearLayout中的ViewGroup =（的LinearLayout）（（活动）上下文）.findViewById（R.id.popup）;
LayoutInflater layoutInflater =（LayoutInflater）上下文
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
查看布局= layoutInflater.inflate（R.layout.popup_layout，ViewGroup中）; //创建PopupWindow
最后PopupWindow弹出=新PopupWindow（C）;
popup.setWidth（popupWidth）;
popup.setHeight（popupHeight）;
popup.setFocusable（真）; //有些偏移对齐弹出有点权，有点下降，相对于按钮的位置。
INT OFFSET_X = -200;
INT OFFSET_Y = 20; //清除默认的半透明背景
popup.setBackgroundDrawable（新BitmapDrawable（））; //显示弹出指定位置，+偏移。
popup.showAtLocation（布局，Gravity.NO_GRAVITY，p.x + OFFSET_X，p.y + OFFSET_Y）; //获取一个参考关闭按钮，点击后关闭弹出。
按钮关闭=（按钮）layout.findViewById（R.id.stop）;
close.setOnClickListener（新OnClickListener（）{ @覆盖
公共无效的onClick（视图v）{
popup.dismiss（）;
}
}）;
}
现在我发现错误在（上下文）
的LinearLayout的ViewGroup =（的LinearLayout）context.findViewById（R.id.popup）;
LayoutInflater layoutInflater =（LayoutInflater）上下文
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
解决方案
我已经用你的code。但似乎ok了。
活动的完整code段
公共类TestPopupActivity扩展活动实现OnClickListener { //屏幕上的x和查看按钮的Y的位置。
点p;
私人的LinearLayout持有人;
私人LayoutInflater吹气;
私有视图MyView的;
私人按钮btn_show; @覆盖
公共无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）; 支架=（的LinearLayout）findViewById（R.id.holder）;
吹气=（LayoutInflater）getSystemService（
Context.LAYOUT_INFLATER_SERVICE）; MyView的= inflater.inflate（R.layout.inflated_layout，NULL）;
btn_show =（按钮）myView.findViewById（R.id.show_popup）;
btn_show.setOnClickListener（本）;
holder.addView（MyView的）;
} //获取x和y位置后，按钮在屏幕上绘制
需要注意的是，我们无法获得位置在OnCreate（）//（这一点很重要，
//因为在那个阶段最有可能的视图尚未绘制，所以它会返回（0，0））
@覆盖
公共无效onWindowFocusChanged（布尔hasFocus）{ INT [] =位置INT新[2];
/ * Button按钮=（按钮）myView.findViewById（R.id.show_popup）; * / //获取x，y位置，并将其存储位置[]数组中
//位置[0] = X，位置[1] = Y。
btn_show.getLocationOnScreen（位置）; //初始化为x点，和y位置
P =新点（）;
p.x =位置[0];
p.y =位置[1];
} //显示弹出的方法。
私人无效showPopup（Activity上下文，点p）{
INT popupWidth = 200;
INT popupHeight = 150; //充气popup_layout.xml
LinearLayout中的ViewGroup =（的LinearLayout）context.findViewById（R.id.popup）;
LayoutInflater layoutInflater =（LayoutInflater）上下文
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
查看布局= layoutInflater.inflate（R.layout.popup_layout，ViewGroup中）; //创建PopupWindow
最后PopupWindow弹出=新PopupWindow（背景）;
popup.setContentView（布局）;
popup.setWidth（popupWidth）;
popup.setHeight（popupHeight）;
popup.setFocusable（真）; //有些偏移对齐弹出有点权，有点下降，相对于按钮的位置。
INT OFFSET_X = 30;
INT OFFSET_Y = 30; //清除默认的半透明背景
popup.setBackgroundDrawable（新BitmapDrawable（））; //显示弹出指定位置，+偏移。
popup.showAtLocation（布局，Gravity.NO_GRAVITY，p.x + OFFSET_X，p.y + OFFSET_Y）; //获取一个参考关闭按钮，点击后关闭弹出。
按钮关闭=（按钮）layout.findViewById（R.id.close）;
close.setOnClickListener（新OnClickListener（）{ @覆盖
公共无效的onClick（视图v）{
popup.dismiss（）;
}
}）;
} @覆盖
公共无效的onClick（视图v）{
// TODO自动生成方法存根
开关（v.getId（））{
案例R.id.show_popup：
如果（P！= NULL）
showPopup（TestPopupActivity.this页）;
打破; 默认：
打破;
}
}
}
屏幕截图
I have implemented Popup Window in one Application. I have sample code of This. If I implement this code in my activity than it's not Working. so i cant found my Error. can any one help me.
Unlock_hud.java:
inf = (LayoutInflater) getApplicationContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
myview = inf.inflate(R.layout.unlock_launcher, null);
receive = (Button) myview.findViewById(R.id.receive1);
reject = (Button) myview.findViewById(R.id.reject12);
slidehandlebutton= (Button) myview.findViewById(R.id.slidehandlebutton);
slidehandlebutton.setOnClickListener(this);
Handler ha = new Handler();
ha.postDelayed(new Runnable() {
@Override
public void run() {
ActivityManager mActivityManager = (ActivityManager) getSystemService("activity");
List<RunningTaskInfo> list_running = mActivityManager
.getRunningTasks(2147483647);
List<RecentTaskInfo> list_recent = mActivityManager
.getRecentTasks(2147483647, 1);
Log.d("main", "Running: " + list_running.get(0).topActivity);
Log.d("main", "Recent: " + list_recent.get(0).baseIntent);
/* Intent homeIntent = new Intent(Intent.ACTION_MAIN);
homeIntent.addCategory(Intent.CATEGORY_HOME);
homeIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);
startActivity(homeIntent);*/
// Log.d("main", "Free Memory: " + getUsedMemorySize());
prefs = PreferenceManager
.getDefaultSharedPreferences(getApplicationContext());
}
}, 500)
}
@Override
public void onDestroy() {
super.onDestroy();
Log.d("main", "Ondestroy");
// lock.reenableKeyguard();
if (!call_flag && wm2 != null) {
if (receive_flag) {
if (isaddView) {
wm2.removeView(myview);
}
} else {
wm2.removeView(new_view);
}
edit.putBoolean("flag", false);
edit.commit();
call_flag = true;
if (CheckMissCall.bmp != null) {
CheckMissCall.bmp.recycle();
CheckMissCall.bmp = null;
}
}
}
@Override
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.slidehandlebutton:
if (p != null)
showPopup(Unlock_hud.this, p);
break;
}
}
public void onWindowFocusChanged(boolean hasFocus) {
int[] location = new int[2];
Button button = (Button)myview. findViewById(R.id.slidehandlebutton);
// Get the x, y location and store it in the location[] array
// location[0] = x, location[1] = y.
button.getLocationOnScreen(location);
//Initialize the Point with x, and y positions
p = new Point();
p.x = location[0];
p.y = location[1];
}
private void showPopup(Context context, Point p2) {
// TODO Auto-generated method stub
int popupWidth = 180;
int popupHeight = 80;
// Inflate the popup_layout.xml
LinearLayout viewGroup = (LinearLayout) ((Activity) context).findViewById(R.id.popup);
LayoutInflater layoutInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = layoutInflater.inflate(R.layout.popup_layout, viewGroup);
// Creating the PopupWindow
final PopupWindow popup = new PopupWindow(c);
popup.setWidth(popupWidth);
popup.setHeight(popupHeight);
popup.setFocusable(true);
// Some offset to align the popup a bit to the right, and a bit down, relative to button's position.
int OFFSET_X =-200;
int OFFSET_Y =20;
// Clear the default translucent background
popup.setBackgroundDrawable(new BitmapDrawable());
// Displaying the popup at the specified location, + offsets.
popup.showAtLocation(layout, Gravity.NO_GRAVITY, p.x + OFFSET_X, p.y + OFFSET_Y);
// Getting a reference to Close button, and close the popup when clicked.
Button close = (Button) layout.findViewById(R.id.stop);
close.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
popup.dismiss();
}
});
}
Now i found error In ( CONTEXT )
LinearLayout viewGroup = (LinearLayout) context.findViewById(R.id.popup);
LayoutInflater layoutInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
解决方案
I have use your code. But it seems ok.
Full code snippet of Activity
public class TestPopupActivity extends Activity implements OnClickListener {
//The "x" and "y" position of the "Show Button" on screen.
Point p;
private LinearLayout holder;
private LayoutInflater inflater;
private View myView;
private Button btn_show;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
holder = (LinearLayout) findViewById(R.id.holder);
inflater = (LayoutInflater) getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
myView = inflater.inflate(R.layout.inflated_layout, null);
btn_show = (Button) myView.findViewById(R.id.show_popup);
btn_show.setOnClickListener(this);
holder.addView(myView);
}
// Get the x and y position after the button is draw on screen
// (It's important to note that we can't get the position in the onCreate(),
// because at that stage most probably the view isn't drawn yet, so it will return (0, 0))
@Override
public void onWindowFocusChanged(boolean hasFocus) {
int[] location = new int[2];
/* Button button = (Button) myView.findViewById(R.id.show_popup);*/
// Get the x, y location and store it in the location[] array
// location[0] = x, location[1] = y.
btn_show.getLocationOnScreen(location);
//Initialize the Point with x, and y positions
p = new Point();
p.x = location[0];
p.y = location[1];
}
// The method that displays the popup.
private void showPopup(Activity context, Point p) {
int popupWidth = 200;
int popupHeight = 150;
// Inflate the popup_layout.xml
LinearLayout viewGroup = (LinearLayout) context.findViewById(R.id.popup);
LayoutInflater layoutInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = layoutInflater.inflate(R.layout.popup_layout, viewGroup);
// Creating the PopupWindow
final PopupWindow popup = new PopupWindow(context);
popup.setContentView(layout);
popup.setWidth(popupWidth);
popup.setHeight(popupHeight);
popup.setFocusable(true);
// Some offset to align the popup a bit to the right, and a bit down, relative to button's position.
int OFFSET_X = 30;
int OFFSET_Y = 30;
// Clear the default translucent background
popup.setBackgroundDrawable(new BitmapDrawable());
// Displaying the popup at the specified location, + offsets.
popup.showAtLocation(layout, Gravity.NO_GRAVITY, p.x + OFFSET_X, p.y + OFFSET_Y);
// Getting a reference to Close button, and close the popup when clicked.
Button close = (Button) layout.findViewById(R.id.close);
close.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
popup.dismiss();
}
});
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.show_popup:
if (p != null)
showPopup(TestPopupActivity.this, p);
break;
default:
break;
}
}
}
Screenshot
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