Androidカスタム編集可能フルスクリーンドラッグ可能EditText
47999 ワード
前言開発では、EditTextをドラッグして編集する必要があります.フォーカスを失ったとき、TextViewになります.フォーカスを取得したとき、編集することができます.多くの資料を調べて、最終的に完成します.開発時間がきついので、メモを1つだけします.
効果図:1.カスタムビュー
2.Activity部分コード
3.display_layout.xml
4.ToolUtilsクラス
効果図:1.カスタムビュー
import android.content.Context;
import android.graphics.Paint;
import android.text.Editable;
import android.text.TextPaint;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.LinearLayout;
import com.xinrui.guestservice.R;
import com.xinrui.guestservice.utils.ToolUtils;
public class DragLayout extends LinearLayout {
private int lastX, lastY;
private int parentWidth, parentHeight;
private DragEditText mEditText;
private Context mContext;
private View mTypefaceView;
private LayoutInflater inflater;
private ToolUtils mToolUtils;
public DragLayout(Context context) {
this(context, null);
}
public DragLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public DragLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.mContext=context;
mToolUtils = ToolUtils.getInstance(mContext);
inflater = LayoutInflater.from(context);
init();
}
private void init() {
setEditTextAttr(20," ");
}
public int dptopx( float dpValue){
final float scale = mContext.getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
public void setEditTextAttr(int textsize,String text){
mTypefaceView=inflater.inflate(R.layout.edt_layout,null);
int height = dptopx((float)((textsize + 0.00000007)/0.7535))+textsize;
mEditText = new DragEditText(getContext());
Paint mTextPaint = mEditText.getPaint();
mTextPaint.setTextSize(textsize);
int width = dptopx(mTextPaint.measureText(text))+textsize;
//
if(mToolUtils.isScreenOriatationPortrait()) {
setX((1080 - width) / 2);
setY((1920 - height) / 2);
}else{
setX((1920 - width) / 2);
setY((1080 - height) / 2);
}
LinearLayout.LayoutParams mEdtlayoutParams = new LinearLayout.LayoutParams(width,LayoutParams.WRAP_CONTENT);
mEditText.setLayoutParams(mEdtlayoutParams);
int padding = textsize/10;
mEditText.setPadding(-padding,-padding,-padding,-padding);
mEditText.setText(text);
mEditText.setGravity(Gravity.LEFT|Gravity.CENTER_VERTICAL);
mEditText.setTextSize(textsize);
mEditText.setTextColor(getContext().getResources().getColor(R.color.colorWhite));
mEditText.setBackground(null);
addView(mEditText);
LinearLayout.LayoutParams mViewlayoutParams = new LinearLayout.LayoutParams(width, 55);
mViewlayoutParams.topMargin=5;
mTypefaceView.setLayoutParams(mViewlayoutParams);
mEditText.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) {
}
@Override
public void afterTextChanged(Editable s) {
String value = s.toString().trim();
TextPaint mTextPaint = mEditText.getPaint();
mTextPaint.setTextSize(mEditText.getTextSize());
int mTextViewWidth = (int) mTextPaint.measureText(value);
int width = mEditText.getWidth();
if (mTextViewWidth > width) {
LinearLayout.LayoutParams mEdtlayoutParams = new LinearLayout.LayoutParams(mTextViewWidth, LayoutParams.WRAP_CONTENT);
mEditText.setLayoutParams(mEdtlayoutParams);
LinearLayout.LayoutParams mViewlayoutParams = new LinearLayout.LayoutParams(mTextViewWidth, 55);
mViewlayoutParams.topMargin=5;
mTypefaceView.setLayoutParams(mViewlayoutParams);
DragLayout.this.invalidate();
}
}
});
mEditText.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus){
mEditText.setBackgroundResource(R.drawable.edit_bg);
addView(mTypefaceView);
}else{
mEditText.setBackground(null);
removeView(mTypefaceView);
}
}
});
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (ev.getAction() == MotionEvent.ACTION_DOWN) {
lastX = (int) ev.getRawX();
lastY = (int) ev.getRawY();
return false;
}else if(ev.getAction()==MotionEvent.ACTION_UP){
return false;
}
return true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
int deltaX = (int) event.getRawX() - lastX;
int deltaY = (int) event.getRawY() - lastY;
if (parentWidth == 0) {
ViewGroup mViewGroup = (ViewGroup) getParent();
parentWidth = mViewGroup.getWidth();
parentHeight = mViewGroup.getHeight();
}
if (getTranslationX() < -getLeft() && deltaX < 0) deltaX = 0;
else if (getTranslationX() > (parentWidth - getRight()) && deltaX > 0) deltaX = 0;
if (getTranslationY() < -getTop() && deltaY < 0) deltaY = 0;
else if (getTranslationY() > (parentHeight - getBottom()) && deltaY > 0) deltaY = 0;
setTranslationX(getTranslationX() + deltaX);
setTranslationY(getTranslationY() + deltaY);
lastX = (int) event.getRawX();
lastY = (int) event.getRawY();
break;
case MotionEvent.ACTION_UP:
break;
}
return true;
}
private static class DragEditText extends EditText{
private int downX, downY;
public DragEditText(Context context) {
super(context);
}
public DragEditText(Context context, AttributeSet attrs) {
super(context, attrs);
}
public DragEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
downX = (int) event.getRawX();
downY = (int) event.getRawY();
getParent().requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_MOVE:
int upX = (int) event.getRawX() - downX;
int upY = (int) event.getRawY() - downY;
if (Math.abs(upX) <= ViewConfiguration.get(getContext()).getScaledTouchSlop() && Math.abs(upY) <= ViewConfiguration.get(getContext()).getScaledTouchSlop()) {
getParent().requestDisallowInterceptTouchEvent(true);
} else {
getParent().requestDisallowInterceptTouchEvent(false);
}
break;
}
return super.dispatchTouchEvent(event);
}
@Override
protected void onSelectionChanged(int selStart, int selEnd) {
super.onSelectionChanged(selStart, selEnd);
//
if (selStart == selEnd) {//
setSelection(getText().length());
}
}
}
}
2.Activity部分コード
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.inputmethod.InputMethodManager;
import android.widget.RelativeLayout;
import com.xinrui.guestservice.view.DragLayout;
public class DisplayActivity extends Activity {
private DragLayout mDragLayout;
private RelativeLayout main_area;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.display_layout);
init();
}
private void init(){
main_area = (RelativeLayout)findViewById(R.id.main_area);
mDragLayout=(DragLayout)findViewById(R.id.drag_area);
int imageid = getIntent().getIntExtra("image", -1);
if (imageid != -1) {
main_area.setBackgroundResource(imageid);
} else {
String imagepath = getIntent().getStringExtra("imagepath");
Bitmap bitmap = BitmapFactory.decodeFile(imagepath);
Drawable drawable = new BitmapDrawable(bitmap);
main_area.setBackground(drawable);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
//EditText ，
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (getCurrentFocus() != null) {
if (getCurrentFocus().getWindowToken() != null) {
imm.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
mDragLayout.clearFocus();
}
}
}
return super.onTouchEvent(event);
}
}
3.display_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_area"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.xinrui.guestservice.view.DragLayout
android:id="@+id/drag_area"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
</com.xinrui.guestservice.view.DragLayout>
</RelativeLayout>
4.ToolUtilsクラス
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import com.xinrui.guestservice.R;
import com.xinrui.guestservice.entity.PictureInfo;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class ToolUtils {
private static ToolUtils toolUtils;
private Context mContext;
private ArrayList<String> paint_list = null;
private ArrayList<PictureInfo> fileItemList;
private ToolUtils(Context context) {
mContext = context.getApplicationContext();
paint_list = new ArrayList<>();
fileItemList = new ArrayList<>();
}
public static ToolUtils getInstance(Context context) {
if (toolUtils == null) {
toolUtils = new ToolUtils(context);
}
return toolUtils;
}
public boolean isScreenOriatationPortrait() {
return mContext.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT;
}
public int dptopx( float dpValue){
final float scale = mContext.getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
}