android kotlin 自定义dialog

代码如下 ：

class ClearCacheDialog {    private var context: Context? = null    private var dialog: Dialog? = null    private var btn_cancel: Button? = null    private  var txt_updata_message:TextView? = null    private var btn_update: Button? = null    /**     * init the dialog     *     * @return     */    fun MyVersionDialog(activity: Activity) { context = activity dialog = Dialog(context!!, R.style.mydialog_style) dialog!!.setContentView(R.layout.clear_cache_dialog) //设置dialog以外的不能点击 dialog!!.setCancelable(false) txt_updata_message = dialog!!.findViewById(R.id.txt_updata_message) as TextView btn_update = dialog!!.findViewById(R.id.btn_update) as Button btn_cancel = dialog!!.findViewById(R.id.btn_cancel) as Button btn_cancel!!.setOnClickListener {     //取消  clearCache?.cancel()     dismiss() } btn_update!!.setOnClickListener {     //清除缓存    clearCache?.clearCache()  dismiss() }    }    var clearCache: ClearCacheOnClickCallBack?=null    fun setClearCacheOnClickCallBack(clearCacheOnClickCallBack: ClearCacheOnClickCallBack) { this.clearCache = clearCacheOnClickCallBack    }    /**     * Get the Text of the EditText     */    fun getText(): String? { //return editText.getText().toString(); return null    }    public fun show() { dialog?.show()    }    fun hide() { dialog?.hide()    }    fun dismiss() { dialog?.dismiss()    }}

clear_cache_dialog.xml代码如下

styles.xml代码如下

    @null    true    true    true    @null    @android:color/transparent    true    0.6

ClearCacheOnClickCallBack接口如下

interface ClearCacheOnClickCallBack {    fun clearCache()    fun cancel()}

activity代码如下

 var clear:ClearCacheDialog=ClearCacheDialog() clear.MyVersionDialog(this) clear .setClearCacheOnClickCallBack(this) clearCache.setOnClickListener{     clear.show() }

 实现接口两个方法

class SettingAct: BaseActivity(), ClearCacheOnClickCallBack {

override fun clearCache() {    //清除缓存    Toast.makeText(activity,"清除成功",Toast.LENGTH_SHORT).show()}override fun cancel() {    //退出    Toast.makeText(activity,"取消",Toast.LENGTH_SHORT).show()}

}