Android Dialog中的EditText 弹出软键盘

其实，这个问题很简单，但是网上的好多资料，都走歪了。直接上代码：

final AlertDialog dialog = new AlertDialog.Builder(this).create();    LayoutInflater layoutInflater = LayoutInflater.from(this);    View view = layoutInflater.inflate(R.layout.modify_cart_num, null);    dialog.setView(view);    dialog.show();    ImageView ivSub = (ImageView) view.findViewById(R.id.ivSub_cart_commodity);    ImageView ivSum = (ImageView) view.findViewById(R.id.ivSum_cart_commodity);    final EditText edCount = (EditText) view.findViewById(R.id.ed_count);    edCount.setText(5+"");    final Button btnCancel = (Button) view.findViewById(R.id.btn_cancel);    final Button btnConfim = (Button) view.findViewById(R.id.btn_confirm);    edCount.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            //设置可获得焦点            edCount.setFocusable(true);            edCount.setFocusableInTouchMode(true);            //请求获得焦点            edCount.requestFocus();            //调用系统输入法            InputMethodManager inputManager = (InputMethodManager) edCount                    .getContext().getSystemService(Context.INPUT_METHOD_SERVICE);            inputManager.showSoftInput(edCount, 0);        }    });    btnCancel.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            dialog.dismiss();        }    });    btnConfim.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            int count = parseInt(edCount.getText().toString());            dialog.dismiss();        }    });

当然，最后是xml代码：

之后你就会发现，那光标问题怎么解决，怎么让光标处于始终最末端？其实自定义一个EditText就行了。代码如下：

public class CustomEditText extends EditText {public CustomEditText(Context context) {    super(context);}public CustomEditText(Context context, AttributeSet attrs) {        super(context, attrs);    }    public CustomEditText(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);    }    @Override    protected void onSelectionChanged(int selStart, int selEnd) {        super.onSelectionChanged(selStart, selEnd);        //保证光标始终在最后面        if(selStart==selEnd){//防止不能多选            setSelection(getText().length());        }    }}

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