Android按钮不动？

Question

我正在按照在线教程进行按钮更改位置（从左上角到右下角），同时增加尺寸。我正在使用transitionmanager进行此操作。

TransitionManager.beginDelayedTransition(mylayout); 

然后我想，如果我能做到从顶端左侧还右下角的动画（这不包括在本教程中，我只尝试了这一点纯粹的好奇心）。我创建称为

moveButtonBack(); 

X变量得到由每一个或moveButton moveButtonBack（）被调用时递增的另一种方法，和moveButton被调用，如果x是如果x为奇数偶数而moveButtonBack被调用。顺便说一下，我在代码中添加了很多注释以跟踪事情。要将按钮大小更改回moveButtonBack，我使用变量H和W来显示按钮的第一个高度和宽度。

问题

为了我的代码似乎罚款，我不能找出问题所在。当我在手机上运行该按钮时，该按钮会变得疯狂。文本在按钮上快速变化，它以无组织的方式移动，或者当我触摸时移动到中心，当我放开时移动到中心，或者它停留在中心并且看起来好像振动快速上下移动）。它具有恒定的高度300和宽度450，而不是缩小和放大。我不知道问题是什么，如果我得到了帮助，我会很感激。我花了一个多小时在代码中插入注释，并试图通过改变之类的东西听众的高度，以解决这一问题，等

package com.example.my.transitions; 

import android.nfc.Tag; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.*; 
import android.widget.*; 
import android.transition.*; 
import android.support.v7.app.*; 

public class MainActivity extends AppCompatActivity { 

ViewGroup myslayout; 
View mysButton; //Used in move and moveback 
int x = 0; 
double h; 
double w; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    myslayout = (ViewGroup) findViewById(R.id.myslayoutid); 

    myslayout.setOnTouchListener(
      new RelativeLayout.OnTouchListener() { 
       public boolean onTouch(View v, MotionEvent event) { 

         if (x%2 == 0) { 

          moveButton(); 
          return true; 

         } 
        else{ 

          moveButtonBack(); 
          return true; 
         } 

        return true; //touch listener as been handled 
       } 
      } 
    ); 
} 

public void moveButton() { 
    Button mysButton = (Button) findViewById(R.id.mysbuttonid); 

    h = mysButton.getHeight(); 
    w = mysButton.getWidth(); 


    TransitionManager.beginDelayedTransition(myslayout); 

    //////////////////////Change position of button//////////////////////////// 


    RelativeLayout.LayoutParams positionRules = new RelativeLayout.LayoutParams(

      RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 

    positionRules.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.ALIGN_PARENT_BOTTOM); 

    positionRules.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.ALIGN_PARENT_RIGHT); 


    mysButton.setLayoutParams(positionRules); 

    /////////////////////////Change size of button//////////////////////////// 


    ViewGroup.LayoutParams sizerules = mysButton.getLayoutParams(); 
    sizerules.width = 450; 
    sizerules.height = 300; 

    mysButton.setLayoutParams(sizerules); 

    mysButton.setText("Height: " + sizerules.height + "Width: " + sizerules.width); 
    x++; //Make x odd, to be called as moveButtonBack next time 
} 

    public void moveButtonBack(){ 
     Button mysButton =(Button) findViewById(R.id.mysbuttonid); 
     TransitionManager.beginDelayedTransition(myslayout); 

     RelativeLayout.LayoutParams positionBackRules = new RelativeLayout.LayoutParams(
       RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 

     positionBackRules.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.ALIGN_PARENT_TOP); 
     positionBackRules.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.ALIGN_PARENT_LEFT); //Move back to top left 

     mysButton.setLayoutParams(positionBackRules); 

     ViewGroup.LayoutParams sizebackrules = mysButton.getLayoutParams(); 
     sizebackrules.height = (int) h; 
     sizebackrules.width = (int) w; 
     //I am typcasting h and w into ints in case it is a double, since .width and .height only take ints. 

    mysButton.setLayoutParams(sizebackrules); 

     mysButton.setText("Height: " + sizebackrules.height + "Width: " + sizebackrules.width + "h " + h + "w" + w); 

     x++; //Make x even again 


    } 


@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 

    return super.onOptionsItemSelected(item); 
} 
} 

同样，我会很感激的答案，因为我一直在这个问题上现在几个小时！

Answer 1

在你的onTouch方法检查是否触摸或触摸。只为这些事件之一写下移动按钮逻辑。

例如：在Android Documentation

if (event.getAction() == MotionEvent.ACTION_DOWN) { 
    // Code for Move button/Move button back 
} 

更多细节对于不改变问题的按钮大小： 移动h和w到活动的onCreate方法可以帮助计算。