通过拖放Android的问题创建的EditText [英] Create EditText by drag drop Android issue
问题描述
我有三个布局:顶部,左,右。在上面的布局,我的EditText图标,当我把它拖动到左的布局,将创建左的布局一个EditText。
随着左布局或向右布局的EditText下降,我可以由左到右的布局移动(或从右到左,不能左/右顶部移动)
我的问题:
1。当我创建由左布局拖动一个EditText,然后创建在左侧布局拖动一个EditText,它的工作的很好,我可以看到所有的拖放操作日志。但是,如果我再创造左的布局另一个的EditText,ACTION_DRAG_STARTED和ACTION_DRAG_ENDED没有收到。
<一个href=\"http://i1057.photobucket.com/albums/t394/tdtrinhsiho/ScreenShot2013-07-28at60954PM_zps14a2d784.png\" rel=\"nofollow\">http://i1057.photobucket.com/albums/t394/tdtrinhsiho/ScreenShot2013-07-28at60954PM_zps14a2d784.png
2,当我创建的布局已经创建了一个EditText太近的EditText,ACTION_DROP没有收到
<一个href=\"http://i1057.photobucket.com/albums/t394/tdtrinhsiho/ScreenShot2013-07-28at61336PM_zps98ab85f1.png\" rel=\"nofollow\">http://i1057.photobucket.com/albums/t394/tdtrinhsiho/ScreenShot2013-07-28at61336PM_zps98ab85f1.png
我的code:
XML:
&LT;的LinearLayout
机器人:ID =@ + ID /顶
机器人:layout_width =FILL_PARENT
机器人:layout_height =100dip
机器人:背景=@色/ Azure的&GT; &LT; ImageView的
机器人:ID =@ + ID /贴纸
机器人:填充=10dip
机器人:layout_width =50dip
机器人:layout_height =50dip
机器人:背景=@绘制/笔记
&GT; &LT; / ImageView的&GT; &LT; / LinearLayout中&GT; &LT;的LinearLayout
机器人:layout_height =FILL_PARENT
机器人:layout_width =FILL_PARENT
机器人:方向=横向&GT; &LT; AbsoluteLayout
机器人:ID =@ + ID /左
机器人:layout_width =500dip
机器人:layout_height =FILL_PARENT
机器人:背景=@色/旧布黄&GT; &LT; / AbsoluteLayout&GT; &LT; AbsoluteLayout
机器人:ID =@ + ID /右
机器人:layout_height =FILL_PARENT
机器人:layout_width =FILL_PARENT
机器人:背景=@色/原木色&GT; &LT; / AbsoluteLayout&GT; &LT; / LinearLayout中&GT;&LT; / LinearLayout中&GT;
活动:
包com.tranductrinh.mydraganddrop;
进口android.annotation.TargetApi;
进口android.app.ActionBar;
进口android.content.ClipData;
进口android.graphics.Color;
进口android.graphics.drawable.Drawable;
进口android.os.Build;
进口android.os.Bundle;
进口android.app.Activity;
进口android.util.Log;
进口android.view.DragEvent;
进口android.view.LayoutInflater;
进口android.view.Menu;
进口android.view.MotionEvent;
进口android.view.View;
进口android.view.ViewGroup.LayoutParams;
进口android.view.ViewGroup;
进口android.widget.AbsoluteLayout;
进口android.widget.EditText;
进口android.widget.ImageView;
进口android.widget.LinearLayout;
进口android.widget.Toast;公共类主要活动扩展{ @覆盖
保护无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
findViewById(R.id.sticker).setOnTouchListener(新MyTouchListener());
findViewById(R.id.left).setOnDragListener(新MyDragListener());
findViewById(R.id.right).setOnDragListener(新MyDragListener()); } 私有类MyTouchListener实现View.OnTouchListener {
公共布尔onTouch(查看视图,MotionEvent motionEvent){
如果(motionEvent.getAction()== MotionEvent.ACTION_DOWN){
ClipData数据= ClipData.newPlainText(,);
View.DragShadowBuilder shadowBuilder =新View.DragShadowBuilder(视图);
view.startDrag(数据,shadowBuilder,查看,0);
//view.setVisibility(View.INVISIBLE);
返回true;
}其他
返回false;
}
} 私有类MyLongTouchListener实现View.OnLongClickListener {
公共布尔onLongClick(查看视图){
ClipData数据= ClipData.newPlainText(,);
View.DragShadowBuilder shadowBuilder =新View.DragShadowBuilder(视图);
view.startDrag(数据,shadowBuilder,查看,0);
//view.setVisibility(View.INVISIBLE);
返回true;
}
} 类MyDragListener实现View.OnDragListener { @TargetApi(Build.VERSION_ codeS.JELLY_BEAN)
@覆盖
公共ondrag当布尔(视图V,事件的dragEvent){
INT行动= event.getAction(); 开关(event.getAction()){
案例DragEvent.ACTION_DRAG_STARTED: Log.i(信息,START);
返回true;
案例DragEvent.ACTION_DRAG_ENTERED: v.setBackgroundColor(getResources()的getColor(R.color.YellowGreen));
Log.i(信息,ENTER);
返回true;
案例DragEvent.ACTION_DRAG_EXITED: 如果(V == findViewById(R.id.left))
v.setBackgroundColor(getResources()的getColor(R.color.OldLace));
其他
如果(V == findViewById(R.id.right))
v.setBackgroundColor(getResources()的getColor(R.color.BurlyWood)); Log.i(信息,EXIT); 返回true;
案例DragEvent.ACTION_DROP:
//丢弃,重新分配视图的ViewGroup
Log.i(信息,DROP);
查看查看=(查看)event.getLocalState();
业主的ViewGroup =(ViewGroup中)view.getParent(); 如果(owner.getId()!= R.id.top){
//从布局删除贴纸
owner.removeView(视图); //添加贴纸新布局
AbsoluteLayout容器=(AbsoluteLayout)V;
AbsoluteLayout.LayoutParams PARAMS =新AbsoluteLayout.LayoutParams(200,200,(int)的event.getX() - 100,(int)的event.getY() - 100);
container.addView(视图,则params);
view.setVisibility(View.VISIBLE);
view.setFocusable(假); //设置onLongClickListener
view.setOnLongClickListener(新MyLongTouchListener()); Log.i(信息,移动操作); }
否则如果(owner.getId()== R.id.top){ //view.setVisibility(View.VISIBLE); //由code新的EditText对象
EDITTEXT的EditText =新的EditText(Main.this);
editText.setBackgroundDrawable(getResources()getDrawable(R.drawable.note)); //添加贴纸集装箱
AbsoluteLayout容器=(AbsoluteLayout)V;
AbsoluteLayout.LayoutParams PARAMS =新AbsoluteLayout.LayoutParams(200,200,(int)的event.getX() - 100,(int)的event.getY() - 100);
container.addView(EDITTEXT,则params); //将焦点设置的EditText
editText.setFocusable(假); //设置onLongClickListener
editText.setOnLongClickListener(新MyLongTouchListener()); Log.i(信息,复制操作); } //设置视图父母正常
如果(ⅴ== findViewById(R.id.left)){
v.setBackgroundColor(getResources()的getColor(R.color.OldLace));
}
其他
如果(ⅴ== findViewById(R.id.right)){
v.setBackgroundColor(getResources()的getColor(R.color.BurlyWood));
} 返回true; 案例DragEvent.ACTION_DRAG_ENDED:
Log.i(信息,拖放结果:+ event.getResult()); 如果(event.getResult()==假){ 吐司面包= Toast.makeText(Main.this,无效的操作拖放,Toast.LENGTH_SHORT);
toast.show();
//下降时不采取行动处理程序
((查看)event.getLocalState())setVisibility(View.VISIBLE);
} Log.i(信息,END *******************); 返回true; 默认:
打破;
}
返回false;
}
}
}
与移动的EditText,你应该做它的一个副本,在视图中。例如,你应该做到以下几点:
字符串editTextString = editText.getText()的toString()。
的EditText newEditText =新的EditText(MainActivity.this);
newEditText.setText(editTextString);
所以,你需要复制从的EditText文本并创建一个新的EditText您将添加到容器中。请确保您不会使视图不可见时调用v.startDrag(数据,shadowBuilder,V,0);
I have three layouts: top, left and right. On top layout, I have EditText icon, when I drag it to left layout, will create an EditText in left layout.
With EditText drop in left layout or right layout, I can move it from left to right layout (or right to left, can't move from left/right to top)
My problem:
1.When I create an EditText by drag in left layout, then I create an EditText by drag in left layout, it work's well, I can see all drag drop log action. But if I create another EditText in left layout again, ACTION_DRAG_STARTED and ACTION_DRAG_ENDED not received.
http://i1057.photobucket.com/albums/t394/tdtrinhsiho/ScreenShot2013-07-28at60954PM_zps14a2d784.png
2.When I create an EditText too close EditText already created in layout, ACTION_DROP not received
http://i1057.photobucket.com/albums/t394/tdtrinhsiho/ScreenShot2013-07-28at61336PM_zps98ab85f1.png
My code: XML:
<LinearLayout
android:id="@+id/top"
android:layout_width="fill_parent"
android:layout_height="100dip"
android:background="@color/Azure">
<ImageView
android:id="@+id/sticker"
android:padding="10dip"
android:layout_width="50dip"
android:layout_height="50dip"
android:background="@drawable/note"
>
</ImageView>
</LinearLayout>
<LinearLayout
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="horizontal">
<AbsoluteLayout
android:id="@+id/left"
android:layout_width="500dip"
android:layout_height="fill_parent"
android:background="@color/OldLace">
</AbsoluteLayout>
<AbsoluteLayout
android:id="@+id/right"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:background="@color/BurlyWood">
</AbsoluteLayout>
</LinearLayout>
</LinearLayout>
Activity: package com.tranductrinh.mydraganddrop;
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.content.ClipData;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.DragEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewGroup;
import android.widget.AbsoluteLayout;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;
public class Main extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViewById(R.id.sticker).setOnTouchListener(new MyTouchListener());
findViewById(R.id.left).setOnDragListener(new MyDragListener());
findViewById(R.id.right).setOnDragListener(new MyDragListener());
}
private class MyTouchListener implements View.OnTouchListener {
public boolean onTouch(View view, MotionEvent motionEvent) {
if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
ClipData data = ClipData.newPlainText("", "");
View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view);
view.startDrag(data, shadowBuilder, view, 0);
//view.setVisibility(View.INVISIBLE);
return true;
} else
return false;
}
}
private class MyLongTouchListener implements View.OnLongClickListener {
public boolean onLongClick(View view) {
ClipData data = ClipData.newPlainText("", "");
View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view);
view.startDrag(data, shadowBuilder, view, 0);
//view.setVisibility(View.INVISIBLE);
return true;
}
}
class MyDragListener implements View.OnDragListener {
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@Override
public boolean onDrag(View v, DragEvent event) {
int action = event.getAction();
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
Log.i("INFORMATION ", "START");
return true;
case DragEvent.ACTION_DRAG_ENTERED:
v.setBackgroundColor(getResources().getColor(R.color.YellowGreen));
Log.i("INFORMATION ", "ENTER");
return true;
case DragEvent.ACTION_DRAG_EXITED:
if (v == findViewById(R.id.left))
v.setBackgroundColor(getResources().getColor(R.color.OldLace));
else
if (v == findViewById(R.id.right))
v.setBackgroundColor(getResources().getColor(R.color.BurlyWood));
Log.i("INFORMATION ", "EXIT");
return true;
case DragEvent.ACTION_DROP:
// Dropped, reassign View to ViewGroup
Log.i("INFORMATION ", "DROP");
View view = (View) event.getLocalState();
ViewGroup owner = (ViewGroup) view.getParent();
if (owner.getId() != R.id.top) {
// remove Sticker in from layout
owner.removeView(view);
// add Sticker to new layout
AbsoluteLayout container = (AbsoluteLayout) v;
AbsoluteLayout.LayoutParams params = new AbsoluteLayout.LayoutParams(200, 200, (int)event.getX()-100, (int)event.getY()-100);
container.addView(view, params);
view.setVisibility(View.VISIBLE);
view.setFocusable(false);
// set onLongClickListener
view.setOnLongClickListener(new MyLongTouchListener());
Log.i("INFORMATION ", "Move operation");
}
else if (owner.getId() == R.id.top) {
//view.setVisibility(View.VISIBLE);
// new EditText object by code
EditText editText = new EditText(Main.this);
editText.setBackgroundDrawable(getResources().getDrawable(R.drawable.note));
// add Sticker to Container
AbsoluteLayout container = (AbsoluteLayout) v;
AbsoluteLayout.LayoutParams params = new AbsoluteLayout.LayoutParams(200, 200, (int)event.getX()-100, (int)event.getY()-100);
container.addView(editText, params);
// set focus on EditText
editText.setFocusable(false);
// set onLongClickListener
editText.setOnLongClickListener(new MyLongTouchListener());
Log.i("INFORMATION ", "Copy operation");
}
// set view parent to normal
if (v == findViewById(R.id.left)) {
v.setBackgroundColor(getResources().getColor(R.color.OldLace));
}
else
if (v == findViewById(R.id.right)) {
v.setBackgroundColor(getResources().getColor(R.color.BurlyWood));
}
return true;
case DragEvent.ACTION_DRAG_ENDED:
Log.i("INFORMATION ", "Drag Drop Result : " + event.getResult());
if (event.getResult() == false) {
Toast toast = Toast.makeText(Main.this, "Invalid operation drag and drop", Toast.LENGTH_SHORT);
toast.show();
// when drop action not handler
((View) event.getLocalState()).setVisibility(View.VISIBLE);
}
Log.i("INFORMATION ", "END *******************");
return true;
default:
break;
}
return false;
}
}
}
Instead of moving the EditText, you should make a copy of it in the view. For example, you should do the following:
String editTextString = editText.getText().toString();
EditText newEditText = new EditText(MainActivity.this);
newEditText.setText(editTextString);
So, you need to copy the text from the EditText and create a new EditText which you will add to the container. Make sure that you don't make the view invisible when you call v.startDrag(data, shadowBuilder, v, 0);
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