Android使用PopupWindow自定义可拖动的数字小键盘，与sqlite数据库交互
直接上代码EtZdyActivity:package com.example.softkeyboardandroidtest;import android.app.Activity;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase;import android.os.Bundle;import
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直接上代码
EtZdyActivity:
package com.example.softkeyboardandroidtest;
import android.app.Activity;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.os.Environment;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.PopupWindow;
import android.widget.TextView;
public class EtZdyActivity extends Activity{
String SDCARD_DIR = Environment.getExternalStorageDirectory().getPath();
String dbfile = SDCARD_DIR + "/Download/main.db";
private EditText et;
private TextView tv;
private Button btnKeyboard1;
private Button btnKeyboard2;
private Button btnKeyboard3;
private Button btnKeyboard4;
private Button btnKeyboard5;
private Button btnKeyboard6;
private Button btnKeyboard7;
private Button btnKeyboard8;
private Button btnKeyboard9;
private Button btnKeyboard0;
private Button btnKeyboardPoint;
private Button btnKeyboardBack;
private Button btnKeyboardClear;
private Button btnKeyboardOk;
private Button btnKeyboardCancel;
private Button btnKeyboardAbc;
private KeyBoardListener keyBoardListener = new KeyBoardListener();
private int lastX;
private int lastY;
private int dx;
private int dy;
private int mScreenX = 0;
private int mScreenY = 0;
public EtZdyActivity(EditText et) {
this.et = et;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.et_zdy);
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN
| WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
et = (EditText)findViewById(R.id.et);
et.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View arg0, MotionEvent arg1) {
showPopupWindow();
return true;
}
});
}
private void showPopupWindow() {
View view = getLayoutInflater().inflate(R.layout.popup_window, null);
final PopupWindow popupWindow = new PopupWindow(this);
if (popupWindow != null) {
popupWindow.setFocusable(true);//要先让popupwindow获得焦点，才能正确获取popupwindow的状态
}
if (popupWindow.isShowing()) {
popupWindow.dismiss();
}
popupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT);
popupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
popupWindow.setContentView(view);
tv = (TextView)view.findViewById(R.id.tv_pop);
//获取按钮
btnKeyboard1 = (Button)view.findViewById(R.id.btn_keyboard_1);
btnKeyboard2 = (Button)view.findViewById(R.id.btn_keyboard_2);
btnKeyboard3 = (Button)view.findViewById(R.id.btn_keyboard_3);
btnKeyboard4 = (Button)view.findViewById(R.id.btn_keyboard_4);
btnKeyboard5 = (Button)view.findViewById(R.id.btn_keyboard_5);
btnKeyboard6 = (Button)view.findViewById(R.id.btn_keyboard_6);
btnKeyboard7 = (Button)view.findViewById(R.id.btn_keyboard_7);
btnKeyboard8 = (Button)view.findViewById(R.id.btn_keyboard_8);
btnKeyboard9 = (Button)view.findViewById(R.id.btn_keyboard_9);
btnKeyboard0 = (Button)view.findViewById(R.id.btn_keyboard_0);
btnKeyboardPoint = (Button)view.findViewById(R.id.btn_keyboard_point);
btnKeyboardBack = (Button)view.findViewById(R.id.btn_keyboard_back);
btnKeyboardClear = (Button)view.findViewById(R.id.btn_keyboard_clear);
btnKeyboardOk = (Button)view.findViewById(R.id.btn_keyboard_ok);
btnKeyboardCancel = (Button)view.findViewById(R.id.btn_keyboard_cancel);
btnKeyboardAbc = (Button)view.findViewById(R.id.btn_keyboard_abc);
btnKeyboard1.setOnClickListener(keyBoardListener);
btnKeyboard2.setOnClickListener(keyBoardListener);
btnKeyboard3.setOnClickListener(keyBoardListener);
btnKeyboard4.setOnClickListener(keyBoardListener);
btnKeyboard5.setOnClickListener(keyBoardListener);
btnKeyboard6.setOnClickListener(keyBoardListener);
btnKeyboard7.setOnClickListener(keyBoardListener);
btnKeyboard8.setOnClickListener(keyBoardListener);
btnKeyboard9.setOnClickListener(keyBoardListener);
btnKeyboard0.setOnClickListener(keyBoardListener);
btnKeyboardPoint.setOnClickListener(keyBoardListener);
btnKeyboardBack.setOnClickListener(keyBoardListener);
btnKeyboardClear.setOnClickListener(keyBoardListener);
btnKeyboardOk.setOnClickListener(keyBoardListener);
btnKeyboardAbc.setOnClickListener(keyBoardListener);
//PopupWindow进行拖动
view.findViewById(R.id.lay).setOnTouchListener(new OnTouchListener()
{
public boolean onTouch(View v, MotionEvent event)
{
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
lastX = (int) event.getRawX();
lastY = (int) event.getRawY();
break;
case MotionEvent.ACTION_UP:
mScreenX = dx;
mScreenY = dy;
break;
case MotionEvent.ACTION_MOVE:
dx = (int) event.getRawX() - lastX + mScreenX;
dy = lastY - (int)event.getRawY() + mScreenY;
popupWindow.update( dx,-dy, -1, -1);
break;
}
return true;
}
});
btnKeyboardCancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//隐藏PopupWindow
popupWindow.dismiss();
}
});
btnKeyboardOk.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
//这里写通过查询数据库得到的数据，判断输入的et.getText()和查询的信息是否符合，若不符合要求则在textView中显示提示信息
if(!tv.getText().toString().equals("")){
et.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
tv.setText("");
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
tv.setText("");
}
});
}else{
//隐藏PopupWindow
popupWindow.dismiss();
}
}
});
popupWindow.showAsDropDown(et); //设置PopupWindow弹出位置在et下边
}
class KeyBoardListener implements View.OnClickListener{
@Override
public void onClick(View v) {
String str = et.getText().toString();
int length = str.length();
switch (v.getId()) {
case R.id.btn_keyboard_1:
case R.id.btn_keyboard_2:
case R.id.btn_keyboard_3:
case R.id.btn_keyboard_4:
case R.id.btn_keyboard_5:
case R.id.btn_keyboard_6:
case R.id.btn_keyboard_7:
case R.id.btn_keyboard_8:
case R.id.btn_keyboard_9:
case R.id.btn_keyboard_0:
case R.id.btn_keyboard_point:
et.setText(str+((Button)v).getText());
break;
case R.id.btn_keyboard_back:
if(!str.equals("")){
et.setText(str.substring(0,length-1));
}
break;
case R.id.btn_keyboard_clear:
et.setText("");
break;
case R.id.btn_keyboard_abc:
//待定
break;
default:
break;
}
}
}
private String check(String cxtj){
String str = "";
String sql = “写你的sql语句”;
try {
SQLiteDatabase db = SQLiteDatabase.openDatabase(dbfile, null, SQLiteDatabase.OPEN_READWRITE); //这里使用的是sqlite数据库
Cursor c = db.rawQuery(sql, null);
if(c.moveToFirst()){
str = c.getString(0);
}
c.close();
db.close();
} catch (Exception e) {
e.printStackTrace();
}
return str;
}
}
et_zdy.xml:
<?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"
android:orientation="vertical" >
<EditText
android:id="@+id/et"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="none"/>
</LinearLayout>
popup_window.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/lay">
<TextView
android:id="@+id/tv_pop"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:textSize="16sp"
android:textColor="#000"
android:text=""/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_keyboard_1"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:text="1"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_2"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="2"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_3"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="3"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_cancel"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="取消"
android:textColor="#fff"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_keyboard_4"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:text="4"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_5"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="5"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_6"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="6"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_abc"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="abc"
android:textColor="#fff"
android:textSize="22sp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_keyboard_7"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:text="7"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_8"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="8"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_9"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="9"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_back"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="后退"
android:textColor="#fff"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_keyboard_clear"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:paddingTop="8dp"
android:text="清空"
android:textColor="#fff"
android:textSize="20sp" />
<Button
android:id="@+id/btn_keyboard_0"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="0"
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_point"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:text="."
android:textColor="#fff"
android:textSize="40sp" />
<Button
android:id="@+id/btn_keyboard_ok"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginLeft="8dp"
android:paddingTop="8dp"
android:text="确定"
android:textColor="#fff"
android:textSize="20sp" />
</LinearLayout>
</LinearLayout>
参考1：小键盘
https://blog.csdn.net/sinat_30114673/article/details/51460614?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase
参考2：软键盘
普通基础自定义键盘（中英文兼顾）、每次弹出都会改变数字顺序的自定义密码键盘、能与webview交互的自定义密码键盘
https://blog.csdn.net/wozuihaole/article/details/80364296?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-4.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-4.nonecase
参考3：软键盘
https://www.jianshu.com/p/8f3382a63f8b
参考4：软键盘（该博主有git代码分享喔~）
https://blog.csdn.net/SValence/article/details/93901651?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-3.opensearch_close&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-3.opensearch_close
参考5：改变数字顺序的密码软键盘（有git代码分享）
https://www.jianshu.com/p/09dfdface4af
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