我已经在EditText小部件中添加了文本右侧的图像，使用以下XML:
<EditText
android:id="@+id/txtsearch"
...
android:layout_gravity="center_vertical"
android:background="@layout/shape"
android:hint="Enter place,city,state"
android:drawableRight="@drawable/cross" />
但我想在单击嵌入图像时清除EditText。我该怎么做呢?
当前回答
复合绘图不应该是可点击的。 在水平LinearLayout中使用单独的视图并在它们上使用单击处理程序会更干净。
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:background="@color/white"
android:layout_marginLeft="20dp"
android:layout_marginStart="20dp"
android:layout_marginRight="20dp"
android:layout_marginEnd="20dp"
android:layout_gravity="center_horizontal"
android:orientation="horizontal"
android:translationZ="4dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/white"
android:minWidth="40dp"
android:scaleType="center"
app:srcCompat="@drawable/ic_search_map"/>
<android.support.design.widget.TextInputEditText
android:id="@+id/search_edit"
style="@style/EditText.Registration.Map"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:hint="@string/hint_location_search"
android:imeOptions="actionSearch"
android:inputType="textPostalAddress"
android:maxLines="1"
android:minHeight="40dp" />
<ImageView
android:id="@+id/location_gps_refresh"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/white"
android:minWidth="40dp"
android:scaleType="center"
app:srcCompat="@drawable/selector_ic_gps"/>
</LinearLayout>
其他回答
非常非常好，感谢所有参与讨论的人。因此，如果你不想处理扩展类带来的不便，你可以执行以下操作(仅为正确的可绘制对象实现)
this.keyword = (AutoCompleteTextView) findViewById(R.id.search);
this.keyword.setOnTouchListener(new RightDrawableOnTouchListener(keyword) {
@Override
public boolean onDrawableTouch(final MotionEvent event) {
return onClickSearch(keyword,event);
}
});
private boolean onClickSearch(final View view, MotionEvent event) {
// do something
event.setAction(MotionEvent.ACTION_CANCEL);
return false;
}
下面是基于@Mark的回答的基本侦听器实现
public abstract class RightDrawableOnTouchListener implements OnTouchListener {
Drawable drawable;
private int fuzz = 10;
/**
* @param keyword
*/
public RightDrawableOnTouchListener(TextView view) {
super();
final Drawable[] drawables = view.getCompoundDrawables();
if (drawables != null && drawables.length == 4)
this.drawable = drawables[2];
}
/*
* (non-Javadoc)
*
* @see android.view.View.OnTouchListener#onTouch(android.view.View, android.view.MotionEvent)
*/
@Override
public boolean onTouch(final View v, final MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN && drawable != null) {
final int x = (int) event.getX();
final int y = (int) event.getY();
final Rect bounds = drawable.getBounds();
if (x >= (v.getRight() - bounds.width() - fuzz) && x <= (v.getRight() - v.getPaddingRight() + fuzz)
&& y >= (v.getPaddingTop() - fuzz) && y <= (v.getHeight() - v.getPaddingBottom()) + fuzz) {
return onDrawableTouch(event);
}
}
return false;
}
public abstract boolean onDrawableTouch(final MotionEvent event);
}
这一切都很棒，但为什么不让它变得更简单呢?
不久前我也遇到过这种情况……和android touchlistener工作得很好，但在使用上有限制..我找到了另一个解决方案，我希望能帮助你:
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/zero_row">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<ProgressBar
android:id="@+id/loadingProgressBar"
android:layout_gravity="center"
android:layout_width="28dp"
android:layout_height="28dp" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:background="@drawable/edittext_round_corners"
android:layout_height="match_parent"
android:layout_marginLeft="5dp">
<ImageView
android:layout_width="28dp"
android:layout_height="28dp"
app:srcCompat="@android:drawable/ic_menu_search"
android:id="@+id/imageView2"
android:layout_weight="0.15"
android:layout_gravity="center|right"
android:onClick="OnDatabaseSearchEvent" />
<EditText
android:minHeight="40dp"
android:layout_marginLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/edittext_round_corners"
android:inputType="textPersonName"
android:hint="Search.."
android:textColorHint="@color/AndroidWhite"
android:textColor="@color/AndroidWhite"
android:ems="10"
android:id="@+id/e_d_search"
android:textCursorDrawable="@color/AndroidWhite"
android:layout_weight="1" />
<ImageView
android:layout_width="28dp"
android:layout_height="28dp"
app:srcCompat="@drawable/ic_oculi_remove2"
android:id="@+id/imageView3"
android:layout_gravity="center|left"
android:layout_weight="0.15"
android:onClick="onSearchEditTextCancel" />
</LinearLayout>
<!--android:drawableLeft="@android:drawable/ic_menu_search"-->
<!--android:drawableRight="@drawable/ic_oculi_remove2"-->
</LinearLayout>
</LinearLayout>
现在您可以创建ImageClick侦听器或事件，并对文本做任何您想做的事情。这个edittext_round_corners.xml文件
<item android:state_pressed="false" android:state_focused="false">
<shape>
<gradient
android:centerY="0.2"
android:startColor="@color/colorAccent"
android:centerColor="@color/colorAccent"
android:endColor="@color/colorAccent"
android:angle="270"
/>
<stroke
android:width="0.7dp"
android:color="@color/colorAccent" />
<corners
android:radius="5dp" />
</shape>
</item>
上述解决方案有效，但也有副作用。如果你有一个EditText和右drawable
你会得到一个粘贴按钮后，每次点击绘制。查看如何禁用粘贴在onClickListener的可绘制权的编辑文本Android(在图标EditText)。
复合绘图不应该是可点击的。 在水平LinearLayout中使用单独的视图并在它们上使用单击处理程序会更干净。
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:background="@color/white"
android:layout_marginLeft="20dp"
android:layout_marginStart="20dp"
android:layout_marginRight="20dp"
android:layout_marginEnd="20dp"
android:layout_gravity="center_horizontal"
android:orientation="horizontal"
android:translationZ="4dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/white"
android:minWidth="40dp"
android:scaleType="center"
app:srcCompat="@drawable/ic_search_map"/>
<android.support.design.widget.TextInputEditText
android:id="@+id/search_edit"
style="@style/EditText.Registration.Map"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:hint="@string/hint_location_search"
android:imeOptions="actionSearch"
android:inputType="textPostalAddress"
android:maxLines="1"
android:minHeight="40dp" />
<ImageView
android:id="@+id/location_gps_refresh"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/white"
android:minWidth="40dp"
android:scaleType="center"
app:srcCompat="@drawable/selector_ic_gps"/>
</LinearLayout>
@Override
public boolean onTouch(View v, MotionEvent event) {
Drawable drawableObj = getResources().getDrawable(R.drawable.search_btn);
int drawableWidth = drawableObj.getIntrinsicWidth();
int x = (int) event.getX();
int y = (int) event.getY();
if (event != null && event.getAction() == MotionEvent.ACTION_UP) {
if (x >= (searchPanel_search.getWidth() - drawableWidth - searchPanel_search.getPaddingRight())
&& x <= (searchPanel_search.getWidth() - searchPanel_search.getPaddingRight())
&& y >= searchPanel_search.getPaddingTop() && y <= (searchPanel_search.getHeight() - searchPanel_search.getPaddingBottom())) {
getSearchData();
}
else {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(searchPanel_search, InputMethodManager.SHOW_FORCED);
}
}
return super.onTouchEvent(event);
}
