我有两个图像视图，当我实现触摸时只有一个视图能够移动整个布局但其他图像视图保持在固定位置我们如何使其他图像视图从一个地方移动到其他如果它没有放置代码移动多个视图帮助输出PLZ ..朋友
答案 0 :(得分：2)
我很久以前写过这段代码，看看它是否适合你
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.FrameLayout;
import android.widget.FrameLayout.LayoutParams;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class DragAndDropActivity extends Activity {
public FrameLayout board;
int dropZone1_X, dropZone2_X, dropZone3_X, dropZone1_Y, dropZone2_Y,
dropZone3_Y, movingCoordinateLeft = 0, movingCoordinateTop = 0;
int windowHeight, windowWidth, defaultMargin = 150;
ImageView answerOption1, answerOption2, answerOption3, dropZone1,
dropZone2, dropZone3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
board = new FrameLayout(this);
setContentView(R.layout.layout);
/*
* set id's of view objects
*/
setIds();
/*
* set on touch listener
*/
setOnTouchListener();
/*
* get window dimensions
*/
getWindowDimensions();
}
private void setOnTouchListener() {
// TODO Auto-generated method stub
answerOption1.setOnTouchListener(dragt);
answerOption2.setOnTouchListener(dragt);
answerOption3.setOnTouchListener(dragt);
}
private void setIds() {
// TODO Auto-generated method stub
board = (FrameLayout) findViewById(R.id.Board);
// ids for answer options
answerOption1 = (ImageView) findViewById(R.id.answer_option_1);
answerOption2 = (ImageView) findViewById(R.id.answer_option_2);
answerOption3 = (ImageView) findViewById(R.id.answer_option_3);
// ids for drop zones
dropZone1 = (ImageView) findViewById(R.id.frame1);
dropZone2 = (ImageView) findViewById(R.id.frame2);
dropZone3 = (ImageView) findViewById(R.id.frame3);
}
/*
*
* Get default view dimensions at run time
*/
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if (hasFocus) {
System.out.println("Method--onWindowFocusChanged");
System.out.println("\n\nFirst drop zone dimensions");
System.out.println("left margin-->" + dropZone1.getLeft());
System.out.println("top margin-->" + dropZone1.getTop());
System.out.println("\n\nSecond drop zone dimensions");
System.out.println("left margin-->" + dropZone2.getLeft());
System.out.println("top margin-->" + dropZone2.getTop());
System.out.println("\n\nThird drop zone dimensions");
System.out.println("left margin-->" + dropZone3.getLeft());
System.out.println("top margin-->" + dropZone3.getTop());
}
}
private void getWindowDimensions() {
// TODO Auto-generated method stub
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
windowHeight = metrics.heightPixels;
System.out.println("window height" + windowHeight);
windowWidth = metrics.widthPixels;
System.out.println("window width" + windowWidth);
}
// onCreate
OnTouchListener dragt = new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
FrameLayout.LayoutParams par = (LayoutParams) v.getLayoutParams();
switch (v.getId()) {// What is being touched
/***
*
* Answer option 1
*
* ***/
case R.id.answer_option_1: {
// Which action is being taken
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE: {
par.topMargin = (int) event.getRawY()
- (v.getHeight() + 22);
par.leftMargin = (int) event.getRawX()
- (v.getWidth() / 2 + 150);
movingCoordinateLeft = (int) event.getRawX()
- (v.getWidth() / 2 + 0);
movingCoordinateTop = par.topMargin;
System.out.println("Answer 1 --- left"
+ movingCoordinateLeft + "---top"
+ movingCoordinateTop);
v.setLayoutParams(par);
break;
}// inner case MOVE
case MotionEvent.ACTION_UP: {
par.height = 40;
par.width = 40;
/*
* par.topMargin = (int) event.getRawY() - (v.getHeight() +
* 15); par.leftMargin = (int) event.getRawX() -
* (v.getWidth() / 2 + 90);
*/
if (windowHeight < 460) {
par.topMargin = 109;
par.leftMargin = 0;
par.height = 22;
par.width = 105;
} else {
par.topMargin = defaultMargin;
par.leftMargin = 0;
}
// check if co-ordinates matched and drop answer in drop
// zone
if ((movingCoordinateLeft > 10 && movingCoordinateLeft < 80)
&& (movingCoordinateTop > 10 && movingCoordinateTop < 100)) {
System.out.println("left " + movingCoordinateLeft
+ "top " + movingCoordinateTop);
dropZone1.setImageDrawable(getResources().getDrawable(
R.drawable.duck));
answerOption1.setVisibility(View.INVISIBLE);
}
v.setLayoutParams(par);
break;
}// inner case UP
case MotionEvent.ACTION_DOWN: {
System.out.println("left" + event.getRawX());
System.out.println("top" + event.getRawY());
if (windowHeight < 460) {
par.height = 40;
par.width = 40;
} else {
par.height = 40;
par.width = 40;
}
v.setLayoutParams(par);
break;
}// inner case UP
}// inner switch
break;
}// case pawn
/***
*
* Answer option 2
*
* ***/
case R.id.answer_option_2: {// Which action is being taken
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE: {
par.topMargin = (int) event.getRawY()
- (v.getHeight() + 22);
par.leftMargin = (int) event.getRawX()
- (v.getWidth() / 2 + 150);
movingCoordinateLeft = (int) event.getRawX()
- (v.getWidth() / 2 + 0);
movingCoordinateTop = par.topMargin;
v.setLayoutParams(par);
break;
}// inner case MOVE
case MotionEvent.ACTION_UP: {
par.height = 40;
par.width = 40;
/*
* par.topMargin = (int) event.getRawY() - (v.getHeight() +
* 15); par.leftMargin = (int) event.getRawX() -
* (v.getWidth() / 2 + 90);
*/
if (windowHeight < 460) {
par.topMargin = 150;
par.leftMargin = 0;
par.height = 40;
par.width = 40;
} else {
par.topMargin = 200;
par.leftMargin = 0;
}
// check if co-ordinates matched and drop answer in drop
// zone
if ((movingCoordinateLeft > 120 && movingCoordinateLeft < 200)
&& (movingCoordinateTop > 10 && movingCoordinateTop < 100)) {
System.out.println("left " + movingCoordinateLeft
+ "top " + movingCoordinateTop);
dropZone2.setImageDrawable(getResources().getDrawable(
R.drawable.hen));
answerOption2.setVisibility(View.INVISIBLE);
}
v.setLayoutParams(par);
break;
}// inner case UP
case MotionEvent.ACTION_DOWN: {
if (windowHeight < 460) {
par.height = 40;
par.width = 40;
} else {
par.height = 40;
par.width = 40;
}
v.setLayoutParams(par);
break;
}// inner case UP
}// inner switch
break;
}// case pawn2
/***
*
* Answer option 3
*
* ***/
case R.id.answer_option_3: {// Which action is being taken
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE: {
par.topMargin = (int) event.getRawY()
- (v.getHeight() + 22);
par.leftMargin = (int) event.getRawX()
- (v.getWidth() / 2 + 150);
movingCoordinateLeft = (int) event.getRawX()
- (v.getWidth() / 2 + 0);
movingCoordinateTop = par.topMargin;
v.setLayoutParams(par);
break;
}// inner case MOVE
case MotionEvent.ACTION_UP: {
par.height = 40;
par.width = 40;
/*
* par.topMargin = (int) event.getRawY() - (v.getHeight() +
* 15); par.leftMargin = (int) event.getRawX() -
* (v.getWidth() / 2 + 90);
*/
if (windowHeight < 460) {
par.topMargin = 191;
par.leftMargin = 0;
par.height = 40;
par.width = 40;
} else {
par.topMargin = 250;
par.leftMargin = 0;
}
// check if co-ordinates matched and drop answer in drop
// zone
if ((movingCoordinateLeft > 220 && movingCoordinateLeft < 310)
&& (movingCoordinateTop > 10 && movingCoordinateTop < 100)) {
System.out.println("left " + movingCoordinateLeft
+ "top " + movingCoordinateTop);
dropZone3.setImageDrawable(getResources().getDrawable(
R.drawable.queen));
answerOption3.setVisibility(View.INVISIBLE);
}
v.setLayoutParams(par);
break;
}// inner case UP
case MotionEvent.ACTION_DOWN: {
System.out.println("down");
if (windowHeight < 460) {
par.height = 40;
par.width = 40;
} else {
par.height = 40;
par.width = 40;
}
v.setLayoutParams(par);
break;
}// inner case UP
}// inner switch
break;
}// case pawn2
}// switch
return true;
}// onTouch
};// dragt
}
和layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/rl"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_horizontal" >
<ImageView
android:id="@+id/frame3"
android:layout_width="100dp"
android:layout_height="80dp"
android:layout_alignParentRight="true"
android:src="@drawable/drag_drop_button" />
<ImageView
android:id="@+id/frame2"
android:layout_width="100dp"
android:layout_height="80dp"
android:layout_toLeftOf="@+id/frame3"
android:src="@drawable/drag_drop_button" />
<ImageView
android:id="@+id/frame1"
android:layout_width="100dp"
android:layout_height="80dp"
android:layout_toLeftOf="@+id/frame2"
android:src="@drawable/drag_drop_button" />
</RelativeLayout>
<FrameLayout
android:id="@+id/Board"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center" >
<ImageView
android:id="@+id/answer_option_1"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="150dp"
android:background="@drawable/duck" >
</ImageView>
<ImageView
android:id="@+id/answer_option_2"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_below="@+id/answer_option_1"
android:layout_gravity="center_horizontal"
android:layout_marginTop="200dp"
android:background="@drawable/hen" >
</ImageView>
<ImageView
android:id="@+id/answer_option_3"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="250dp"
android:background="@drawable/queen" >
</ImageView>
</FrameLayout>
</RelativeLayout>