[Android development diary] Popupwindow perfect demo, androidpopupwindow

[Android development diary] Popupwindow perfect demo, androidpopupwindow
Popupwindow perfect demo implementation
Figure:

Key Code Description:

1. popupwindow is displayed, and the background is dimmed.

ColorDrawable cd = new ColorDrawable(0x000000);popuWindow1.setBackgroundDrawable(cd); WindowManager.LayoutParams lp=getWindow().getAttributes();lp.alpha = 0.4f;getWindow().setAttributes(lp);

2. After the popupwindow disappears, the background is restored.

public void onDismiss(){    WindowManager.LayoutParams lp=getWindow().getAttributes();    lp.alpha = 1f;    getWindow().setAttributes(lp);}

3. popupwindow rounded rectangle

Rounded_corners_bg.xml

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android">     <solid android:color="#FFFFFF" />     <corners         android:topLeftRadius="5dp"        android:topRightRadius="5dp"         android:bottomRightRadius="5dp"        android:bottomLeftRadius="5dp"/> </shape>

Set background in pupopwindow layout File

<?xml version="1.0" encoding="UTF-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="center"    android:background="@drawable/rounded_corners_bg"    android:orientation="vertical" >     ...     ...     ... </RelativeLayout >

4. Click the outside of popupwindow, and popupwindow will also dismiss

popuWindow1.setOutsideTouchable(true);popuWindow1.setFocusable(true);

Complete code:

1. MainActivity. java

Package com. popupwindowdemo; import android. app. activity; import android. content. intent; import android. graphics. drawable. colorDrawable; import android.net. uri; import android. OS. bundle; import android. view. gravity; import android. view. layoutInflater; import android. view. view; import android. view. viewGroup; import android. view. windowManager; import android. widget. button; import android. widget. popupWindow; import android. widget. textView; import android. widget. popupWindow. extends; public class MainActivity extends Activity {// popupwindowprivate PopupWindow popuWindow1; private View contentView1; private TextView textview1; private Button btn1; @ Overrideprotected void onCreate (Bundle savedInstanceState. onCreate (savedInstanceState); setContentView (R. layout. activity_main); textview1 = (TextView) findViewById (R. id. textView2); btn1 = (Button) findViewById (R. id. button1); btn1.setOnClickListener (new View. onClickListener () {public void onClick (View v) {initPopuWindow1 (v) ;}}); textview1.setOnClickListener (new View. onClickListener () {public void onClick (View v) {final Intent intent = new Intent (Intent. ACTION_VIEW, Uri. parse ("http://blog.csdn.net/geeklei/article/"); startActivity (intent) ;}});} private void initPopuWindow1 (View parent) {if (popuWindow1 = null) {LayoutInflater mLayoutInflater = LayoutInflater. from (this); contentView1 = mLayoutInflater. inflate (R. layout. popuwindow1, null); popuWindow1 = new PopupWindow (contentView1, ViewGroup. layoutParams. WRAP_CONTENT, ViewGroup. layoutParams. WRAP_CONTENT);} ColorDrawable cd = new ColorDrawable (0x000000); popuWindow1.setBackgroundDrawable (cd); // generate the background darkening effect WindowManager. layoutParams lp = getWindow (). getAttributes (); lp. alpha = 0.4f; getWindow (). setAttributes (lp); popuWindow1.setOutsideTouchable (true); popuWindow1.setFocusable (true); popuWindow1.showAtLocation (View) parent. getParent (), Gravity. CENTER | Gravity. CENTER_HORIZONTAL, 0, 0); popuWindow1.update (); popuWindow1.setOnDismissListener (new OnDismissListener () {// restore transparency in dismiss public void onDismiss () {WindowManager. layoutParams lp = getWindow (). getAttributes (); lp. alpha = 1f; getWindow (). setAttributes (lp );}});}}

2. activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.popupwindowdemo.MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    <TextView        android:id="@+id/textView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/textView1"        android:layout_below="@+id/textView1"        android:layout_marginTop="23dp"        android:text="click to visit my csdn blog"        android:textColor="#1C86EE" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/textView2"        android:layout_centerHorizontal="true"        android:layout_marginTop="103dp"        android:text="click to show popupwindow" /></RelativeLayout>

3. popupwindow1.xml

<?xml version="1.0" encoding="UTF-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="center"    android:background="@drawable/rounded_corners_bg"       android:orientation="vertical" >    <LinearLayout    android:layout_width="220dp"    android:layout_height="wrap_content"    android:layout_centerInParent="true"    android:layout_gravity="center_vertical|center"    android:orientation="vertical" >        <TextView                android:id="@+id/group_menu1_passfile"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                android:text="item1"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />            <TextView                android:id="@+id/group_menu1_playgame"                android:layout_width="fill_parent"                android:layout_height="40dp"                 android:layout_marginLeft="20dp"                android:gravity="center_vertical"                android:text="item2"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />                        <TextView                android:id="@+id/group_menu1_removefriend"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                android:text="item3"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />            <TextView                android:id="@+id/group_menu1_setremark"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                        android:text="item4"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />                 <TextView                android:id="@+id/group_menu1_brokemate"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                        android:text="item5"                android:textColor="#000000"                android:textSize="13sp" />                     </LinearLayout></RelativeLayout>

4. rounded_corners_bg.xml

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android">     <solid android:color="#FFFFFF" />     <corners         android:topLeftRadius="5dp"        android:topRightRadius="5dp"         android:bottomRightRadius="5dp"        android:bottomLeftRadius="5dp"/> </shape>

Demo:

Http://download.csdn.net/detail/geeklei/7991521

PopupWindow for android Development

Based on what language? Html5, java? Please describe in detail.
 
Android developed the notebook App. you can insert images in the notebook to ask how to save such a diary in the database or

There are many ways. I personally think that images are stored on the SD card separately, and then the corresponding relationship between diaries and images is established through the database for storage. When used, they are queried from the database.