使用 EditText 上的 android:drawableLeft 属性。
<EditText
...
android:drawableLeft="@drawable/my_icon" />
如果你想动态添加图标,请使用:
EditText et = (EditText) findViewById(R.id.myET);
et.setCompoundDrawablesWithIntrinsicBounds(R.drawable.my_icon, 0, 0, 0);
处理点击事件:
String value = "";//any text you are pre-filling in the EditText
final EditText et = new EditText(this);
et.setText(value);
final Drawable x = getResources().getDrawable(R.drawable.presence_offline);//your x image, this one from standard android images looks pretty good actually
x.setBounds(0, 0, x.getIntrinsicWidth(), x.getIntrinsicHeight());
et.setCompoundDrawables(null, null, value.equals("") ? null : x, null);
et.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (et.getCompoundDrawables()[2] == null) {
return false;
}
if (event.getAction() != MotionEvent.ACTION_UP) {
return false;
}
if (event.getX() > et.getWidth() - et.getPaddingRight() - x.getIntrinsicWidth()) {
et.setText("");
et.setCompoundDrawables(null, null, null, null);
}
return false;
}
});
et.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
et.setCompoundDrawables(null, null, et.getText().toString().equals("") ? null : x, null);
}
@Override
public void afterTextChanged(Editable arg0) {
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
});
这也可以使用自定义 EditText 来完成:
处理 EditText 内可绘制对象上的单击事件 https://stackoverflow.com/questions/3554377/handling-click-events-on-a-drawable-within-an-edittext