Android自定义EditText实现登录界面

public class ClearEditText extends EditText implements OnFocusChangeListener,   TextWatcher {   private Drawable right;  private boolean hasfocus;  private Drawable mClearDrawable;   public ClearEditText(Context context) {   this(context, null);   }   public ClearEditText(Context context, AttributeSet attrs) {   // 这个属性不加 没法用   this(context, attrs, android.R.attr.editTextStyle);   }   public ClearEditText(Context context, AttributeSet attrs, int defStyle) {   super(context, attrs, defStyle);   // 初始化删除的资源图片   mClearDrawable = getCompoundDrawables()[2];   if (mClearDrawable == null) {    mClearDrawable = getResources().getDrawable(R.drawable.ic_close1);   }   mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(),     mClearDrawable.getIntrinsicHeight());    clearText(false);    setOnFocusChangeListener(this);   addTextChangedListener(this);   }    @Override  public void onFocusChange(View v, boolean hasfocus) {   this.hasfocus = hasfocus;   if (hasfocus) {    clearText(getText().length() > 0);   } else {    clearText(false);   }   }   @Override  public void onTextChanged(CharSequence text, int start, int lengthBefore,    int lengthAfter) {   // TODO Auto-generated method stub   if (hasfocus) {    clearText(text.length() > 0);   }   }   private void clearText(boolean visible) {   if (visible) {    right = mClearDrawable;    } else {    right = null;   }   setCompoundDrawables(getCompoundDrawables()[0],     getCompoundDrawables()[1], right, getCompoundDrawables()[3]);    // right.setBounds(0, 0, right.getIntrinsicWidth(),   // right.getIntrinsicHeight());   }     //getTotalPaddingRight 返回 又padding加上图片占据的宽度 在这个范围内 即判断是否点击了删除按钮  @Override  public boolean onTouchEvent(MotionEvent event) {   if (event.getAction() == MotionEvent.ACTION_UP) {    if (getCompoundDrawables()[2] != null) {      boolean t = event.getX() > (getWidth() - getTotalPaddingRight())       && (event.getX() < ((getWidth() - getPaddingRight())));      if (t) {      this.setText("");     }    }   }    return super.onTouchEvent(event);  }   @Override  public void afterTextChanged(Editable arg0) {   // TODO Auto-generated method stub   }   @Override  public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,    int arg3) {   // TODO Auto-generated method stub   }   /**   * 设置晃动动画   */  public void setShakeAnimation() {   this.setAnimation(shakeAnimation(5));  }   // 可以设置1秒钟晃动s下  public static Animation shakeAnimation(int s) {   Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);   translateAnimation.setInterpolator(new CycleInterpolator(s));   translateAnimation.setDuration(1000);   return translateAnimation;  }  } 

public class CustomText extends TextView {   private String text;  private Paint paint;  private Rect rect = new Rect();  private int initTopDistance = 8;   public CustomText(Context context) {   super(context, null);   // TODO Auto-generated constructor stub  }   public CustomText(Context context, AttributeSet attrs) {   this(context, attrs, 0);   // TODO Auto-generated constructor stub  }   public CustomText(Context context, AttributeSet attrs, int defStyle) {   super(context, attrs, defStyle);   text = (String) getText();    DisplayMetrics metric = new DisplayMetrics();   WindowManager windowmanager = (WindowManager) context     .getSystemService(Context.WINDOW_SERVICE);   windowmanager.getDefaultDisplay().getMetrics(metric);   //得到字体大小   int size = (int) getTextSize();   //转换成SP   int s= (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, size, metric);    paint = new Paint(Paint.ANTI_ALIAS_FLAG);   paint.setDither(true);   paint.setColor(0xffffffff);   if(s!=0)   paint.setTextSize(s);   Typeface t= Typeface.createFromAsset(context.getResources().getAssets(), "fonts/font.TTF");      paint.setTypeface(t);   paint.setShadowLayer(60, 30, 30, 0xff00ffff);   } // @Override // protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { //  ////  super.onMeasure(widthMeasureSpec, heightMeasureSpec); //  int modeWidth=MeasureSpec.getMode(widthMeasureSpec); //  int modeHeight=MeasureSpec.getMode(heightMeasureSpec); //  int widthSize=MeasureSpec.getSize(widthMeasureSpec); //  int heightSize=MeasureSpec.getSize(heightMeasureSpec); //  //  int width=0; //  int heigh=0; //  if(modeWidth==MeasureSpec.AT_MOST) //   //   width=getMaxTextWdith(getStrings())+getPaddingLeft()+getPaddingRight(); //   //  if(modeHeight==MeasureSpec.AT_MOST) //   heigh=getMaxTextHeight(getStrings())+getPaddingTop()+getPaddingBottom(); //  //  setMeasuredDimension(width=modeWidth==MeasureSpec.AT_MOST?width:widthSize, //    height=modeHeight==MeasureSpec.AT_MOST?height:heightSize); //  //  // }       @Override  protected void onSizeChanged(int w, int h, int oldw, int oldh) {   // TODO Auto-generated method stub   super.onSizeChanged(w, h, oldw, oldh);   width = w;   height = h;  }   private void measureText(String str) {    paint.getTextBounds(str, 0, str.length(), rect);   FontMetrics fm = paint.getFontMetrics();   textHeight = (int) (fm.ascent + fm.descent);  }   private int textHeight;  private int width;  private int height;  private int num;  //转化为 单个字的字符串  public String[] getStrings(){      num = text.length();   String[] strings = new String[num];   for (int i = 0; i < num; i++) {     char c = text.charAt(i);    strings[i] = String.valueOf(c);   }   return strings;  }  /**返回字体最长的宽度   * @param strs   * @return   */  public int getMaxTextWdith(String[] strs){   int w=0;   for(int i=0;i<strs.length;i++){    measureText(strs[i]);    w=Math.max(rect.width(), w);       }      return w;        }  /**返回字体最高的高度   * @param strs   * @return   */  public int getMaxTextHeight(String[] strs){   int h=0;   for(int i=0;i<strs.length;i++){    measureText(strs[i]);       h=Math.max(-textHeight, h);       }   return h;     }   @Override  protected void onDraw(Canvas canvas) {    String[] strings=getStrings();    float starty = 1.0f * height / num;   //Y坐标变化   float changeY = 0;   for (int j = 0; j < num; j++) {    //测量字体宽度和高度    measureText(strings[j]);    //没个字体上下的间隔    changeY = starty * j;    int left=getWidth() / 2 - rect.width() / 2      + getPaddingLeft() + getPaddingRight();    int top=(int) (starty/2-textHeight+ changeY + getPaddingTop() + getPaddingBottom());        canvas.drawText(strings[j], left, top, paint);   }   }  } 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:tools="http://schemas.android.com/tools"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="vertical" >   <RelativeLayout   android:id="@+id/meishi"   android:layout_width="match_parent"   android:layout_height="0dp"   android:layout_weight="1"   android:background="@drawable/ic_meishi" >    <com.example.eidttext.CustomText    android:id="@+id/tttt"    android:layout_width="wrap_content"    android:layout_height="match_parent"    android:layout_alignParentRight="true"    android:text="味道"    android:textSize="40sp"    />  </RelativeLayout>   <LinearLayout   android:layout_width="match_parent"   android:layout_height="0dp"   android:layout_weight="1"   android:orientation="vertical" >    <RelativeLayout    android:id="@+id/count"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:padding="8dp"    android:gravity="center"    android:layout_marginTop="20dp"     >     <TextView     android:id="@+id/text_count"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:padding="8dp"     android:text="帐号"          />     <com.example.eidttext.ClearEditText         android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:layout_marginRight="20dp"     android:layout_toRightOf="@+id/text_count"     android:background="@drawable/edittext"     android:drawableRight="@drawable/ic_close1"     android:gravity="center_vertical"     android:hint="请输入帐号"     android:textSize="16sp"     android:padding="8dp"              android:singleLine="true" >    </com.example.eidttext.ClearEditText>   </RelativeLayout>    <RelativeLayout    android:id="@+id/password"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:padding="8dp"         >     <TextView     android:id="@+id/text_password"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:padding="8dp"     android:text="密码" />     <com.example.eidttext.ClearEditText     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:layout_marginRight="20dp"     android:layout_toRightOf="@+id/text_password"     android:background="@drawable/edittext"     android:drawableRight="@drawable/ic_close1"     android:gravity="center_vertical"     android:hint="请输入密码"     android:padding="8dp"      android:textSize="16sp"     android:singleLine="true" >    </com.example.eidttext.ClearEditText>   </RelativeLayout>    <RelativeLayout    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:padding="16dp" >     <Button     android:id="@+id/login"     android:layout_width="wrap_content"     android:layout_height="30dp"     android:layout_marginLeft="50dp"     android:textSize="16sp"     android:background="@drawable/button_selector"     android:text="登录"          />     <Button     android:layout_width="wrap_content"     android:layout_height="30dp"     android:layout_marginLeft="80dp"     android:layout_toRightOf="@+id/login"     android:background="@drawable/button_selector"     android:text="注册"     android:textSize="16sp" />   </RelativeLayout>  </LinearLayout>  </LinearLayout>

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" >  <item android:state_pressed="true"   android:drawable="@drawable/button_press" />"  <item android:drawable="@drawable/button" />  </selector> 

<?xml version="1.0" encoding="utf-8"?>   <shape android:shape="rectangle"   xmlns:android="http://schemas.android.com/apk/res/android">    <gradient     android:startColor="@color/deep_red"     android:centerColor="#ffffffff"     android:endColor="@color/oranger_red"     android:angle="90"       >     </gradient>    <corners android:radius="15dp" />    <stroke android:width="1px"     android:color="#FF6666"/>  </shape> 

<?xml version="1.0" encoding="utf-8"?>   <shape android:shape="rectangle"   xmlns:android="http://schemas.android.com/apk/res/android">    <gradient     android:startColor="#FF3333"     android:centerColor="#ffffffff"     android:endColor="#FF9966"     android:angle="90"      >     </gradient>    <corners android:radius="15dp" />    <stroke android:width="1px"     android:color="#ededed"/>  </shape>