设置密码对话框

　　protected void showDialog() {
        //判断本地是否有存储密码(sp    字符串)
        String psd = SpUtil.getString(this, ConstantValue.MOBILE_SAFE_PSD, "");
        if(TextUtils.isEmpty(psd)){
            //1,初始设置密码对话框
            showSetPsdDialog();
        }else{
            //2,确认密码对话框
            showConfirmPsdDialog();
        }
    }

    /**
     * 确认密码对话框
     */
    private void showConfirmPsdDialog() {

        //因为需要去自己定义对话框的展示样式,所以需要调用dialog.setView(view);
        //view是由自己编写的xml转换成的view对象xml----->view
        Builder builder = new AlertDialog.Builder(this);
        final AlertDialog dialog = builder.create();

        final View view = View.inflate(this, R.layout.dialog_confirm_psd, null);
        //让对话框显示一个自己定义的对话框界面效果
        dialog.setView(view);
        dialog.show();

        Button bt_submit = (Button) view.findViewById(R.id.bt_submit);
        Button bt_cancel = (Button) view.findViewById(R.id.bt_cancel);

        bt_submit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                EditText et_confirm_psd = (EditText)view.findViewById(R.id.et_confirm_psd);

                String confirmPsd = et_confirm_psd.getText().toString();

                if(!TextUtils.isEmpty(confirmPsd)){
                    String psd = SpUtil.getString(getApplicationContext(), ConstantValue.MOBILE_SAFE_PSD, "");
                    if(psd.equals(confirmPsd)){
                        //进入应用手机防盗模块,开启一个新的activity
                        Intent intent = new Intent(getApplicationContext(), TestActivity.class);
                        startActivity(intent);
                        //跳转到新的界面以后需要去隐藏对话框
                        dialog.dismiss();
                    }else{
                        ToastUtil.show(getApplicationContext(),"确认密码错误");
                    }
                }else{
                    //提示用户密码输入有为空的情况
                    ToastUtil.show(getApplicationContext(), "请输入密码");
                }
            }
        });

        bt_cancel.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });

    }
    /**
     * 设置密码对话框
     */
    private void showSetPsdDialog() {
        //因为需要去自己定义对话框的展示样式,所以需要调用dialog.setView(view);
        //view是由自己编写的xml转换成的view对象xml----->view
        Builder builder = new AlertDialog.Builder(this);
        final AlertDialog dialog = builder.create();

        final View view = View.inflate(this, R.layout.dialog_set_psd, null);
        //让对话框显示一个自己定义的对话框界面效果
        dialog.setView(view);
        dialog.show();

        Button bt_submit = (Button) view.findViewById(R.id.bt_submit);
        Button bt_cancel = (Button) view.findViewById(R.id.bt_cancel);

        bt_submit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                EditText et_set_psd = (EditText) view.findViewById(R.id.et_set_psd);
                EditText et_confirm_psd = (EditText)view.findViewById(R.id.et_confirm_psd);

                String psd = et_set_psd.getText().toString();
                String confirmPsd = et_confirm_psd.getText().toString();

                if(!TextUtils.isEmpty(psd) && !TextUtils.isEmpty(confirmPsd)){
                    if(psd.equals(confirmPsd)){
                        //进入应用手机防盗模块,开启一个新的activity
                        Intent intent = new Intent(getApplicationContext(), TestActivity.class);
                        startActivity(intent);
                        //跳转到新的界面以后需要去隐藏对话框
                        dialog.dismiss();

                        SpUtil.putString(getApplicationContext(), ConstantValue.MOBILE_SAFE_PSD, psd);
                    }else{
                        ToastUtil.show(getApplicationContext(),"确认密码错误");
                    }
                }else{
                    //提示用户密码输入有为空的情况
                    ToastUtil.show(getApplicationContext(), "请输入密码");
                }
            }
        });

        bt_cancel.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });
    }

/res/layout/dialog_confirm_psd.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView
        style="@style/TitleStyle"
        android:text="确认密码"
        android:background="#f30"/>
    <!-- android:hint=""提示用户输入内容 -->
    <EditText
        android:id="@+id/et_confirm_psd"
        android:hint="确认密码"
        android:inputType="textPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <Button
            android:id="@+id/bt_submit"
            android:text="确认"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"/>
        <Button
            android:text="取消"
            android:id="@+id/bt_cancel"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"/>
    </LinearLayout>
</LinearLayout>

/res/layout/dialog_set_psd.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <TextView
        style="@style/TitleStyle"
        android:text="设置密码"
        android:background="#f30"/>
    <!-- android:hint=""提示用户输入内容 -->
    <EditText
        android:id="@+id/et_set_psd"
        android:hint="设置密码"
        android:inputType="textPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <EditText
        android:id="@+id/et_confirm_psd"
        android:hint="确认密码"
        android:inputType="textPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <Button
            android:id="@+id/bt_submit"
            android:text="确认"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"/>
        <Button
            android:text="取消"
            android:id="@+id/bt_cancel"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"/>
    </LinearLayout>
</LinearLayout>