在android的弹出窗口中设置自定义布局答案

【问题标题】：Set custom layout in popup window in android在android的弹出窗口中设置自定义布局
【发布时间】：2019-11-25 16:49:41
【问题描述】：

弹出窗口有问题。我想用我自己的布局创建弹出窗口。这是代码：

public class PopupWindowView extends PopupWindow{

    PopupWindow popup;
    boolean click = true;
    LayoutParams params;
    RelativeLayout mainLayout;
    TextView tv;
    LinearLayout layout;
    ImageView chooseFlag;

    public void createPopupWindow(Activity act){
        popup = new PopupWindow(act);
        chooseFlag = (ImageView) act.findViewById(R.id.login_choose_flag);
        mainLayout = (RelativeLayout) act.findViewById(R.id.login_layout);
        tv = new TextView(act);
        layout = new LinearLayout(act);
        //layout = (LinearLayout) findViewById(R.id.popuplayout);
        chooseFlag.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                if (click) {
                    int[] values = new int[2]; 
                    v.getLocationOnScreen(values);
                    popup.showAtLocation(mainLayout, Gravity.NO_GRAVITY, 10, 10);
                    popup.update(values[0], values[1], 300, 80);
                    click = false;
                } else {
                    popup.dismiss();
                    click = true;
                }
            }
        });
        params = new LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);
        layout.setOrientation(LinearLayout.VERTICAL);
        tv.setText("Hi this is a sample text for popup window");
        layout.addView(tv, params);
        popup.setContentView(layout);
    }
}

这是我想在弹出窗口中设置的布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
   >

    <LinearLayout
        android:id="@+id/popuplayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent" 
        android:background="@color/patient_button_bg">
    </LinearLayout>

</LinearLayout>

在我的课堂上我不能使用findbyid 方法，因为这不是活动。如何在班级的弹出窗口中设置自己的布局？

编辑：这是我得到错误的堆栈跟踪：

03-01 09:48:48.761: E/AndroidRuntime(16776): FATAL EXCEPTION: main
03-01 09:48:48.761: E/AndroidRuntime(16776): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.view.ViewGroup.addViewInner(ViewGroup.java:3337)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.view.ViewGroup.addView(ViewGroup.java:3208)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.view.ViewGroup.addView(ViewGroup.java:3188)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.widget.PopupWindow.preparePopup(PopupWindow.java:969)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.widget.PopupWindow.showAtLocation(PopupWindow.java:840)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.widget.PopupWindow.showAtLocation(PopupWindow.java:813)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at pl.asseco.amms.mobile.tools.PopupWindowView$1.onClick(PopupWindowView.java:44)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.view.View.performClick(View.java:3558)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.view.View$PerformClick.run(View.java:14152)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.os.Handler.handleCallback(Handler.java:605)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.os.Handler.dispatchMessage(Handler.java:92)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.os.Looper.loop(Looper.java:137)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at android.app.ActivityThread.main(ActivityThread.java:4514)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at java.lang.reflect.Method.invokeNative(Native Method)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at java.lang.reflect.Method.invoke(Method.java:511)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
03-01 09:48:48.761: E/AndroidRuntime(16776):    at dalvik.system.NativeStart.main(Native Method)

编辑使用弹窗的活动：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    getActionBar().hide();

    mainMenuGenerator = new MainMenuGenerator();
    mainMenuGenerator.generateMainMenu(this);
    mainMenuGenerator.hideIcons();
    popup = new PopupWindowView();

    popup.createPopupWindow(this);

}

【问题讨论】：

标签： android android-layout

【解决方案1】：

试试这个代码：

private void showSortPopup(final Activity context, Point p) 
{
       // Inflate the popup_layout.xml
       LinearLayout viewGroup = (LinearLayout) context.findViewById(R.id.llSortChangePopup);
       LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
       View layout = layoutInflater.inflate(R.layout.sort_popup_layout, viewGroup);

       // Creating the PopupWindow
       changeSortPopUp = new PopupWindow(context);
       changeSortPopUp.setContentView(layout);
       changeSortPopUp.setWidth(LinearLayout.LayoutParams.WRAP_CONTENT);
       changeSortPopUp.setHeight(LinearLayout.LayoutParams.WRAP_CONTENT);
       changeSortPopUp.setFocusable(true);

       // Some offset to align the popup a bit to the left, and a bit down, relative to button's position.
       int OFFSET_X = -20;
       int OFFSET_Y = 95;

       // Clear the default translucent background
       changeSortPopUp.setBackgroundDrawable(new BitmapDrawable());

       // Displaying the popup at the specified location, + offsets.
       changeSortPopUp.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) {
           changeSortPopUp.dismiss();
         }
       });

}

【讨论】：

有用，谢谢！ clear the default translucent background，它把我逼到了墙角（尤其是没有找到我的布局中的原因）

【解决方案2】：

您可以使用以下代码。您需要为此使用 PopupWindow。

PopupWindow mpopup;

那么您需要放大您的视图。

    View popUpView = getLayoutInflater().inflate(R.layout.activity_login,
            null); // inflating popup layout
    mpopup = new PopupWindow(popUpView, LayoutParams.FILL_PARENT,
            LayoutParams.WRAP_CONTENT, true); // Creation of popup
    mpopup.setAnimationStyle(android.R.style.Animation_Dialog);
    mpopup.showAtLocation(popUpView, Gravity.CENTER, 0, 0); // Displaying popup

如果您的布局有一些项目，那么您需要将该项目与您的视图绑定。

    TextView some = (TextView) popUpView.findViewById(R.id.some);       
    Button btnCancel = (Button) popUpView.findViewById(R.id.btnCancel);

您的弹出窗口项目的onClickListener。

    btnCancel.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            mpopup.dismiss();
        }
    });

您可以使用 mpopup.dismiss(); 关闭 PopupWindow

【讨论】：

【解决方案3】：

您可以使用LayoutInflater

LayoutInflater inflater = (LayoutInflater) act.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.custom_layout, null); //custom_layout is your xml file which contains popuplayout
LinearLayout layout = (LinearLayout) view.findViewById(R.id.popuplayout);

【讨论】：

我使用了你的解决方案，但我得到错误：java.lang.IllegalStateException：指定的孩子已经有一个父母。您必须先在孩子的父母上调用 removeView()。
根据例外情况，您似乎正在尝试将之前已添加到不同布局的视图添加到其他布局中，请问您在哪一行收到此异常？
您不能调试并查看它在哪个特定行引发了此错误吗？从堆栈跟踪中，您会在 preparePopup 方法中收到此错误
好的，当我运行应用程序调试器时，一切正常。但是当我点击这个按钮时，我得到错误并且调试器停止。它看起来像第一次在 Activity 中的 onCreate 中创建方法，当您单击按钮时出现错误。我从活动粘贴了 onCreate
您的意思是它在从 onCreate 调用时有效，但稍后单击按钮时不会？您的按钮点击事件的来源在哪里？

【解决方案4】：

试试这个……

public void popUpWindow() {
    final Dialog dialog = new Dialog(MainActivity.this);
    dialog.setContentView(R.layout.client_details);
    dialog.setTitle("Client Details");
    dialog.show();
}

【讨论】：

【解决方案5】：

您好，请检查此 post 包含解决您的问题

试试这个代码：

public class ShowPopUp extends Activity {

PopupWindow popUp;
LinearLayout layout;
TextView tv;
LayoutParams params;
LinearLayout mainLayout;
Button but;
boolean click = true;


public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    popUp = new PopupWindow(this);
    layout = new LinearLayout(this);
    mainLayout = new LinearLayout(this);
    tv = new TextView(this);
    but = new Button(this);
    but.setText("Click Me");
    but.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            if (click) {
                popUp.showAtLocation(mainLayout, Gravity.BOTTOM, 10, 10);
                popUp.update(50, 50, 300, 80);
                click = false;
            } else {
                popUp.dismiss();
                click = true;
            }
        }

    });
    params = new LayoutParams(LayoutParams.WRAP_CONTENT,
            LayoutParams.WRAP_CONTENT);
    layout.setOrientation(LinearLayout.VERTICAL);
    tv.setText("Hi this is a sample text for popup window");
    layout.addView(tv, params);
    popUp.setContentView(layout);
    // popUp.showAtLocation(layout, Gravity.BOTTOM, 10, 10);
     mainLayout.addView(but, params);
     setContentView(mainLayout);
   }
 }

【讨论】：

我不想在活动中这样做。我想做自己的控制来扩展 PopUpWindow

【解决方案6】：

    alert=(Button)findViewById(R.id.click);
    detail=(ImageView)findViewById(R.id.goDetail);

    alert.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {
            // custom dialog

            final Dialog dialog = new Dialog(context);
            dialog.setContentView(R.layout.custom);
            dialog.setTitle(Html.fromHtml("<font color='#EC407A'>About</font>"));
            Button dialogButton = (Button) dialog.findViewById(R.id.dialogOK);
            ImageView img = (ImageView) dialog.findViewById(R.id.goDetail);
            // if button is clicked, close the custom dialog
            dialogButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    dialog.dismiss();
                    Toast.makeText(getApplicationContext(),"Dismissed..!!",Toast.LENGTH_SHORT).show();
                }
            });
            img.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    i=new Intent(getApplication(),CustomDetail.class);
                    setIntent(i);
                    Toast.makeText(Dashboard.this, "Check detail ", Toast.LENGTH_SHORT).show();
                }
            });
            dialog.show();
        }

【讨论】：

虽然这段代码 sn-p 可以解决问题，including an explanation 确实有助于提高您的帖子质量。请记住，您是在为将来的读者回答问题，而这些人可能不知道您提出代码建议的原因。