自定义View 实现软键盘实现搜索

1. xml文件中加入自定义 搜索view

<com.etoury.etoury.ui.view.IconCenterEditText
android:id="@+id/search_et"
style="@style/StyleEditText"
android:hint="搜索景点信息"
/>

2. 自定义的 view java文件

IconCenterEditText.java

package com.etoury.etoury.ui.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
public class IconCenterEditText extends EditText implements View.OnFocusChangeListener, View.OnKeyListener {
private static final String TAG = IconCenterEditText.class.getSimpleName();
/**
* 是否是默认图标再左边的样式
*/
private boolean isLeft = false;
/**
* 是否点击软键盘搜索
*/
private boolean pressSearch = false;
/**
* 软键盘搜索键监听
*/
private OnSearchClickListener listener;

public void setOnSearchClickListener(OnSearchClickListener listener) {
this.listener = listener;
}

public IconCenterEditText(Context context) {
this(context, null);
init();
}

public IconCenterEditText(Context context, AttributeSet attrs) {
this(context, attrs, android.R.attr.editTextStyle);
init();
}

public IconCenterEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}

private void init() {
setOnFocusChangeListener(this);
setOnKeyListener(this);
}

@Override
protected void onDraw(Canvas canvas) {
if (isLeft) { // 如果是默认样式，则直接绘制
super.onDraw(canvas);
} else { // 如果不是默认样式，需要将图标绘制在中间
Drawable[] drawables = getCompoundDrawables();
Drawable drawableLeft = drawables[0];
Drawable drawableRight = drawables[2];
translate(drawableLeft, canvas);
translate(drawableRight, canvas);
//            if (drawableLeft != null) {
//                float textWidth = getPaint().measureText(getHint().toString());
//                int drawablePadding = getCompoundDrawablePadding();
//                int drawableWidth = drawableLeft.getIntrinsicWidth();
//                float bodyWidth = textWidth + drawableWidth + drawablePadding;
//
//                canvas.translate((getWidth() - bodyWidth - getPaddingLeft() - getPaddingRight()) / 2, 0);
//            }
//            if (drawableRight != null) {
//                float textWidth = getPaint().measureText(getHint().toString()); // 文字宽度
//                int drawablePadding = getCompoundDrawablePadding(); // 图标间距
//                int drawableWidth = drawableRight.getIntrinsicWidth(); // 图标宽度
//                float bodyWidth = textWidth + drawableWidth + drawablePadding;
//                setPadding(getPaddingLeft(), getPaddingTop(), (int)(getWidth() - bodyWidth - getPaddingLeft()), getPaddingBottom());
//                canvas.translate((getWidth() - bodyWidth - getPaddingLeft()) / 2, 0);
//            }
super.onDraw(canvas);
}

}

public void translate(Drawable drawable, Canvas canvas) {
if (drawable != null) {
float textWidth = getPaint().measureText(getHint().toString());
int drawablePadding = getCompoundDrawablePadding();
int drawableWidth = drawable.getIntrinsicWidth();
float bodyWidth = textWidth + drawableWidth + drawablePadding;
if (drawable == getCompoundDrawables()[0]) {
canvas.translate((getWidth() - bodyWidth - getPaddingLeft() - getPaddingRight()) / 2, 0);
} else {
setPadding(getPaddingLeft(), getPaddingTop(), (int)(getWidth() - bodyWidth - getPaddingLeft()), getPaddingBottom());
canvas.translate((getWidth() - bodyWidth - getPaddingLeft()) / 2, 0);
}
}
}

@Override
public void onFocusChange(View v, boolean hasFocus) {
Log.d(TAG, "onFocusChange execute");
// 恢复EditText默认的样式
if (!pressSearch && TextUtils.isEmpty(getText().toString())) {
isLeft = hasFocus;
}
}

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
pressSearch = (keyCode == KeyEvent.KEYCODE_ENTER);
if (pressSearch && listener != null) {
/*隐藏软键盘*/
InputMethodManager imm = (InputMethodManager) v.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm.isActive()) {
imm.hideSoftInputFromWindow(v.getApplicationWindowToken(), 0);
}
listener.onSearchClick(v);
}
return false;
}

public interface OnSearchClickListener {
void onSearchClick(View view);
}

}

3. style

</style>
<style name="StyleEditText">
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:background">@drawable/bg_search_bar</item>
<item name="android:drawablePadding">5dp</item>
<item name="android:gravity">center_vertical</item>
<item name="android:imeOptions">actionSearch</item>
<item name="android:drawableLeft">@drawable/icon_search</item>
<item name="android:padding">5dp</item>
<item name="android:singleLine">true</item>
<item name="android:textColorHint">@color/grey</item>
<item name="android:textSize">16sp</item>
<item name="android:hint">搜索</item>
</style>

4. bg_search_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@android:color/white" />
<stroke
android:width="1px"
android:color="@android:color/darker_gray" />
<corners android:radius="3dp" />
</shape>

5. activity 中加上代码

private IconCenterEditText search_et;

search_et = (IconCenterEditText) findViewById(R.id.search_et);

search_et.setOnSearchClickListener(new OnSearchClickListener() {
@Override
public void onSearchClick(View view) {
// TODO Auto-generated method stub

String texts = search_et.getText().toString().trim();
if ("".equals(texts)) {
ToastUtil.showToast("请输入您要搜索的内容");
} else {
//根据你的文字内容实现跳转

Intent intent = new Intent(context,
SearchWordActivity.class);
// intent.putExtra("searchMode", 1);
intent.putExtra("searchWord", texts);
context.startActivity(intent);

}

}
});