編輯:關於android開發
1. xml文件中加入自定義 搜索view
<com.etoury.etoury.ui.view.IconCenterEditText android:id="@+id/search_et" android:hint="搜索景點信息" />
2. 自定義的 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(); /** * 是否是默認圖標再左邊的樣式 */ private boolean isLeft = false; /** * 是否點擊軟鍵盤搜索 */ private boolean pressSearch = false; /** * 軟鍵盤搜索鍵監聽 */ 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) { // 如果是默認樣式,則直接繪制 super.onDraw(canvas); } else { // 如果不是默認樣式,需要將圖標繪制在中間 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()); // 文字寬度 // int drawablePadding = getCompoundDrawablePadding(); // 圖標間距 // int drawableWidth = drawableRight.getIntrinsicWidth(); // 圖標寬度 // 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"); // 恢復EditText默認的樣式 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) { /*隱藏軟鍵盤*/ 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 中加上代碼
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("請輸入您要搜索的內容"); } else { //根據你的文字內容實現跳轉
Intent intent = new Intent(context, SearchWordActivity.class); // intent.putExtra("searchMode", 1); intent.putExtra("searchWord", texts); context.startActivity(intent); } } });
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