fastandrutlis开发框架
android使用EditText的时候总是遇到一些很不爽的问题：
无图无真相。。
1.点击屏幕其他的任何位置，软键盘不会隐藏
2.软键盘会把输入框遮盖掉
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3.软键盘会把界面顶起
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由于对键盘和EditText的种种不爽，就弄了一个以下东西
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一.首先要知道怎么用代码控制软键盘的显示隐藏
以下是软键盘显示隐藏类 KeyBoardUtils.java
import android.app.Activity;
import android.content.Context;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import static android.content.Context.INPUT_METHOD_SERVICE;
/**
* @author laijian
* @version 2017/8/29
* @Copyright (C)下午2:55 , Suntektech
*/
public class KeyBoardUtils {
/**
* 打开软键盘
*
* @param mEditText
* @param mContext
*/
public static void openKeybord(EditText mEditText, Context mContext) {
InputMethodManager imm = (InputMethodManager) mContext
.getSystemService(INPUT_METHOD_SERVICE);
imm.showSoftInput(mEditText, InputMethodManager.RESULT_SHOWN);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,
InputMethodManager.HIDE_IMPLICIT_ONLY);
}
/**
* 关闭软键盘
*
* @param mEditText
* @param mContext
*/
public static void closeKeybord(EditText mEditText, Context mContext) {
InputMethodManager imm = (InputMethodManager) mContext.getSystemService(INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mEditText.getWindowToken(), 0);
}
/**
* des:隐藏软键盘,这种方式参数为activity
*
* @param activity
*/
public static void hideInputForce(Activity activity) {
if (activity == null || activity.getCurrentFocus() == null)
return;
((InputMethodManager) activity.getSystemService(INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(activity.getCurrentFocus()
.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
}
/**
* 打开键盘
**/
public static void showInput(Context context, View view) {
InputMethodManager imm = (InputMethodManager) context.getSystemService(INPUT_METHOD_SERVICE);
if (imm != null) {
view.requestFocus();
imm.showSoftInput(view, 0);
}
}
}
这个类没什么好说的
二.要知道软键盘弹出时的高度
获取软键盘弹出的高度是为了创建一个自适应的dialog，键盘弹出时就会在键盘上方显示一个带EditText的dialog
以下是获取软键盘高度的类 KeyBoardHeightUtils.java
import android.app.Activity;
import android.graphics.Rect;
import android.os.Build;
import android.view.View;
import android.view.ViewTreeObserver;
import android.widget.FrameLayout;
/**
* @author laijian
* @version 2017/8/31
* @Copyright (C)上午11:11 , Suntektech
*/
public class KeyBoardHeightUtils {
private View mChildOfContent;//activity 的布局View
private int usableHeightPrevious;//activity的View的可视高度
private KeyBoardHigthListener keyBoardHigthListener;
public static KeyBoardHeightUtils setKeyBoardHeigthListener(Activity activity, KeyBoardHigthListener keyBoardHigthListener) {
return new KeyBoardHeightUtils(activity, keyBoardHigthListener);
}
public void removeKeyboardHeightListener() {
if (mChildOfContent == null) {
return;
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
mChildOfContent.getViewTreeObserver().removeGlobalOnLayoutListener(globalLayoutListener);
} else {
mChildOfContent.getViewTreeObserver().removeOnGlobalLayoutListener(globalLayoutListener);
}
}
private KeyBoardHeightUtils(final Activity activity, KeyBoardHigthListener keyBoardHigthListener) {
this.keyBoardHigthListener = keyBoardHigthListener;
//获取安卓activity的最顶级控件
FrameLayout content = (FrameLayout) activity.findViewById(android.R.id.content);//
mChildOfContent = content.getChildAt(0);
//监听视图高度变化 mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(globalLayoutListener);
//点击父控件隐藏软键盘
mChildOfContent.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
KeyBoardUtils.hideInputForce(activity);
}
});
}
private ViewTreeObserver.OnGlobalLayoutListener globalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
possiblyResizeChildOfContent();
}
};
private void possiblyResizeChildOfContent() {
int usableHeightNow = computeUsableHeight();
if (usableHeightNow != usableHeightPrevious) {
int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
int heightDifference = usableHeightSansKeyboard - usableHeightNow;
//为了去除无谓的干扰，限制下高度
if (heightDifference > (usableHeightSansKeyboard / 4)) {
keyBoardHigthListener.keyBoardHigthListener(usableHeightSansKeyboard - heightDifference, true, mChildOfContent);
} else {
keyBoardHigthListener.keyBoardHigthListener(usableHeightSansKeyboard, false, mChildOfContent);
}
usableHeightPrevious = usableHeightNow;
}
}
//获取控件在屏幕的可视高度，就是界面除去了标题栏、除去了被软键盘挡住的部分，所剩下的矩形区域
private int computeUsableHeight() {
Rect r = new Rect();
mChildOfContent.getWindowVisibleDisplayFrame(r);
return (r.bottom - r.top);
}
interface KeyBoardHigthListener {//这个回调类写的不好，请自行修改
void keyBoardHigthListener(int heigth, boolean showKeyBoard, View contentView);
}
}
这代码也不多 也不难理解
三.要知道EditText控件是否被遮盖
判断EditText控件是否被遮盖是为了弹出一个带EditText 的 dialog 这样就不会说EditText被覆盖后 不知道输入了些什么内容
以下是检测EditText控件是否被覆盖
private boolean checkViewVisiable() {
Rect localRect = new Rect();
boolean visiable = edtextVew.getLocalVisibleRect(localRect);
System.out.println("visiable=" + visiable);
return visiable;
}
以下是判断获取的焦点是不是EditText
View childView = contentView.findFocus();
if (childView != null) {
if (childView instanceof EditText) {
edtextVew = (EditText) childView;
以下类就是关键类，判断EditText是否被覆盖，弹dialog等
KeyBoardUI.java
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.graphics.Rect;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.DisplayMetrics;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.univercityapp.convergelibrary.widget.NullMenuEditText;
/**
* @author laijian
* @version 2017/8/31
* @Copyright (C)上午11:57 , Suntektech
*/
public class KeyBoardUI implements KeyBoardHeightUtils.KeyBoardHigthListener {
private EditText edtextVew;//activity的输入框
private Activity activity;
private Dialog mDialog;
private NullMenuEditText popuEdtext;//popu的输入框
private int screenWeight = 0;//屏幕宽度
private KeyBoardHeightUtils keyBoardHeightUtils;
public static KeyBoardUI buildKeyBoardUI(Activity activity) {
return new KeyBoardUI(activity);
}
private KeyBoardUI(Activity activity) {
this.activity = activity;
getScreen();
initDialog();
keyBoardHeightUtils = KeyBoardHeightUtils.setKeyBoardHeigthListener(activity, this);
}
private void getScreen() {
DisplayMetrics dm = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
screenWeight = dm.widthPixels;
}
private void initDialog() {
LayoutInflater inflater = (LayoutInflater) activity.getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View popuView = inflater.inflate(ResourcesUtils.getLayoutResources(activity, "popuwindow"), null);
RelativeLayout populay = (RelativeLayout) popuView.findViewById(ResourcesUtils.getIdResources(activity, "popu_lay"));
popuEdtext = (NullMenuEditText) popuView.findViewById(ResourcesUtils.getIdResources(activity, "ed_text"));
mDialog = new Dialog(activity, ResourcesUtils.getStyleResources(activity, "dialog"));
mDialog.setContentView(popuView);
populay.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
KeyBoardUtils.closeKeybord(popuEdtext, activity);
mDialog.dismiss();
}
});
}
@Override
public void keyBoardHigthListener(int heigth, boolean showKeyBoard, View contentView) {
if (showKeyBoard) {
if (contentView != null) {
View childView = contentView.findFocus();
if (childView != null) {
if (childView instanceof EditText) {
edtextVew = (EditText) childView;
if (!checkViewVisiable()) {
mDialog.show();
//重新调整dialog的高度
Window dialogWindow = mDialog.getWindow();
WindowManager.LayoutParams p = dialogWindow.getAttributes(); // 获取对话框当前的参数值
p.height = heigth;
p.width = screenWeight;
dialogWindow.setAttributes(p);
dialogWindow.setWindowAnimations(ResourcesUtils.getStyleResources(activity, "PopupAnimation"));
onEdChange();
KeyBoardUtils.openKeybord(edtextVew, activity);
} else {
if (mDialog != null) {
mDialog.dismiss();
}
}
}
}
}
} else {
if (mDialog != null) {
mDialog.dismiss();
}
}
}
private boolean checkViewVisiable() {
Rect localRect = new Rect();
boolean visiable = edtextVew.getLocalVisibleRect(localRect);
System.out.println("visiable=" + visiable);
return visiable;
}
private void onEdChange() {
String hintStr = "";
String text = "";
if (!TextUtils.isEmpty(edtextVew.getText())) {
text = edtextVew.getText().toString();
}
if (!TextUtils.isEmpty(edtextVew.getHint())) {
hintStr = edtextVew.getHint().toString();
}
popuEdtext.findFocus();
popuEdtext.setInputType(edtextVew.getInputType());
popuEdtext.setHint(hintStr);
popuEdtext.setText(text);
popuEdtext.setSelection(text.length());
popuEdtext.setMaxEms(edtextVew.getMaxEms());
popuEdtext.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
edtextVew.setText(s);
edtextVew.setSelection(s.length());
}
@Override
public void afterTextChanged(Editable s) {
}
});
popuEdtext.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == 0) {
KeyBoardUtils.closeKeybord(popuEdtext, activity);
mDialog.dismiss();
return true;
}
return false;
}
});
}
public void removeKeyboardHeightListener() {
keyBoardHeightUtils.removeKeyboardHeightListener();
}
}
四.禁止EditText长按出复制粘贴
NullMenuEditText.java
/**
* @author laijian
* @version 2017/8/30
* @Copyright (C)下午5:26 , Suntektech
*/
import android.content.Context;
import android.util.AttributeSet;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;
/**
* Created by jianjun.lin on 16/4/12.
*/
public class NullMenuEditText extends EditText {
boolean canPaste() {
return false;
}
boolean canCut() {
return false;
}
boolean canCopy() {
return false;
}
boolean canSelectAllText() {
return false;
}
boolean canSelectText() {
return false;
}
boolean textCanBeSelected() {
return false;
}
public NullMenuEditText(Context context, AttributeSet attrs) {
super(context, attrs);
setLongClickable(false);
setTextIsSelectable(false);
setCustomSelectionActionModeCallback(new ActionMode.Callback() {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
return false;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
}
});
}
@Override
public boolean onTextContextMenuItem(int id) {
return true;
}
}
五.相关xml资源
还有一些动画效果资源
popup_enter.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="100"
android:fromYDelta="1"
android:toYDelta="0" />
<alpha
android:duration="100"
android:fromAlpha="0.0"
android:toAlpha="1.0" />
</set>
popup_exit.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="100"
android:fromYDelta="0"
android:toYDelta="1" />
<alpha
android:duration="100"
android:fromAlpha="1.0"
android:toAlpha="0.0" />
</set>
styles资源
<style name="PopupAnimation" mce_bogus="1" parent="android:Animation">
<item name="android:windowEnterAnimation">@anim/popup_enter</item>
<item name="android:windowExitAnimation">@anim/popup_exit</item>
</style>
<style name="dialog" parent="android:style/Theme.Dialog">
<item name="android:background">#00000000</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">true</item>
<item name="android:backgroundDimEnabled">false</item>
</style>
layout文件
popuwindow.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/popu_lay"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#00000000">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#ffffff"
android:orientation="vertical"
android:paddingTop="2dp">
<com.univercityapp.convergelibrary.widget.NullMenuEditText
android:id="@+id/ed_text"
android:layout_width="match_parent"
android:layout_height="36dp"
android:paddingLeft="6dp"
android:background="#ffffff"
android:gravity="center_vertical"
android:inputType="text"
android:maxLines="1"
android:scrollHorizontally="true"
android:textSize="16sp" />
</LinearLayout>
</RelativeLayout>
六.获取R的资源utils
ResourcesUtils.java
import android.content.Context;
import android.content.res.Resources;
import java.lang.reflect.Field;
/**
* Created by laijian code on 2016-10-19.
*/
public class ResourcesUtils {
public static int getIdResources(Context context, String idName) {
Resources res = context.getResources();
return res.getIdentifier(idName, "id", context.getPackageName());
}
public static int getDrawableResources(Context context, String drawableName) {
Resources res = context.getResources();
return res.getIdentifier(drawableName, "drawable", context.getPackageName());
}
public static int getColorResources(Context context, String colorName) {
Resources res = context.getResources();
return res.getIdentifier(colorName, "color", context.getPackageName());
}
public static int getStringResources(Context context, String stringName) {
Resources res = context.getResources();
return res.getIdentifier(stringName, "string", context.getPackageName());
}
public static int getLayoutResources(Context context, String LayoutName) {
Resources res = context.getResources();
return res.getIdentifier(LayoutName, "layout", context.getPackageName());
}
public static int getAttrResources(Context context, String attrName) {
Resources res = context.getResources();
return res.getIdentifier(attrName, "attr", context.getPackageName());
}
public static int getStyleResources(Context context, String attrName) {
Resources res = context.getResources();
return res.getIdentifier(attrName, "style", context.getPackageName());
}
/**
* context.getResources().getIdentifier 无法获取到 styleable 的数据
*
* @param name
* @return
* @paramcontext
*/
public static int getStyleable(Context context, String name) {
return ((Integer) getResourceId(context, name, "styleable")).intValue();
}
/**
* 获取 styleable 的 ID 号数组
*
* @param name
* @return
* @paramcontext
*/
public static int[] getStyleableArray(Context context, String name) {
return (int[]) getResourceId(context, name, "styleable");
}
/**
* 对于 context.getResources().getIdentifier 无法获取的数据 , 或者数组
* <p/>
* 资源反射值
*
* @param name
* @param type
* @return
* @paramcontext
*/
private static Object getResourceId(Context context, String name, String type) {
String className = context.getPackageName() + ".R";
try {
Class<?> cls = Class.forName(className);
for (Class<?> childClass : cls.getClasses()) {
String simple = childClass.getSimpleName();
if (simple.equals(type)) {
for (Field field : childClass.getFields()) {
String fieldName = field.getName();
if (fieldName.equals(name)) {
System.out.println(fieldName);
return field.get(null);
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
七.如何使用
使用非常简单，在需要的activity的oncreat方法添加
KeyBoardUI.buildKeyBoardUI(this);
在AndroidManifest.xml用到上面方法的activity添加
android:windowSoftInputMode="adjustResize"
谢谢观看完以上内容
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