仿今日头条评论编辑框DialogFragment

直接上代码

    //点击发表，内容不为空时的回调
    public SendBackListener sendBackListener;

    public interface SendBackListener {
        void sendBack(String inputText);
    }

    private ProgressDialog progressDialog;
    private String texthint;

    private Dialog dialog;
    private EditText inputDlg;
    private int numconut = 300;
    private String tag = null;

    public KeyMapDailog() {
    }


    @SuppressLint("ValidFragment")
    public KeyMapDailog(String texthint, SendBackListener sendBackListener) {//提示文字
        this.texthint = texthint;
        this.sendBackListener = sendBackListener;

    }


    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // 使用不带Theme的构造器, 获得的dialog边框距离屏幕仍有几毫米的缝隙。
        dialog = new Dialog(getActivity(), R.style.inputDialog);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); // 设置Content前设定
//        getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
        View contentview = View.inflate(getActivity(), R.layout.comment_dialog_layout, null);
        dialog.setContentView(contentview);
        dialog.setCanceledOnTouchOutside(true); // 外部点击取消
        // 设置宽度为屏宽, 靠近屏幕底部。
        Window window = dialog.getWindow();
        WindowManager.LayoutParams lp = window.getAttributes();
        lp.gravity = Gravity.BOTTOM; // 紧贴底部
        lp.alpha = 1;
        //设置透明度0.0f全透明
        lp.dimAmount = 0.0f;
        lp.width = WindowManager.LayoutParams.MATCH_PARENT; // 宽度持平
        window.setAttributes(lp);
        window.addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
        inputDlg = (EditText) contentview.findViewById(R.id.dialog_comment_content);
        inputDlg.setHint(texthint);
        final TextView tv_send = (TextView) contentview.findViewById(R.id.dialog_comment_send);
        inputDlg.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

        tv_send.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (TextUtils.isEmpty(inputDlg.getText().toString())) {
                    Toast.makeText(getActivity(), "输入内容为空", Toast.LENGTH_LONG).show();
                    return;
                } else {
                    //出现加载画面
                    //progressDialog = new ProgressDialog(getActivity());
                    //progressDialog.setCanceledOnTouchOutside(false);
                    //progressDialog.show();
                    sendBackListener.sendBack(inputDlg.getText().toString());
                }
            }
        });
        inputDlg.setFocusable(true);
        inputDlg.setFocusableInTouchMode(true);
        inputDlg.requestFocus();
        //hideSoftkeyboard();
        //为Window设置动画
        window.setWindowAnimations(R.style.CustomDialog);
        return dialog;
    }

    public void hideProgressdialog() {
        progressDialog.cancel();
    }

    //这个方法可以实现输入法在窗口上切换显示，如果输入法在窗口上已经显示，则隐藏，如果隐藏，则显示输入法到窗口上
    public void hideSoftkeyboard() {
        InputMethodManager m = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        m.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
    }

在anim中，设置动画

pop_in

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="100%p"
        android:toYDelta="0%p" />
    <alpha
        android:fromAlpha="0.0"
        android:toAlpha="1.0" />
</set>

pop_out

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="300"
        android:fromYDelta="0%p"
        android:toYDelta="100%p"
        />
</set>

需要给dialog设置样式

<style name="inputDialog" parent="@android:style/Theme.Holo.Light.Dialog">
    <item name="android:windowBackground">@color/common_white</item>
    <!--背景-->
    <item name="android:windowFrame">@null</item>
    <!--设置无边框-->
    <item name="android:windowNoTitle">true</item>
    <!-- 无标题 -->
    <item name="android:backgroundDimEnabled">false</item>
    <!-- 模糊 -->
    <item name="android:windowSoftInputMode">stateAlwaysVisible</item>
    <!--显示软件盘-->
</style>

加一个动画style

<style name="CustomDialog">
    <item name="android:windowEnterAnimation">@anim/pop_in</item>
    <item name="android:windowExitAnimation">@anim/pop_out</item>
</style>

ok，一个完整的DialogFragment的编辑框就完成了

完整的demo，https://download.csdn.net/download/qq_30711091/10522274

希望大家可以互相学习