LoginActivity.java 4.5 KB
package com.naji.xiaotao.login.ui;

import android.app.Activity;
import android.databinding.Observable;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.text.method.TransformationMethod;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import com.naji.xiaotao.BR;
import com.naji.xiaotao.R;
import com.naji.xiaotao.databinding.ActivityLoginBinding;
import com.naji.xiaotao.login.vm.LoginViewModel;

import me.goldze.mvvmhabit.base.BaseActivity;


public class LoginActivity extends BaseActivity<ActivityLoginBinding,LoginViewModel> implements TextWatcher{


    @Override
    public int initContentView(Bundle savedInstanceState) {
        return R.layout.activity_login;
    }

    @Override
    public int initVariableId() {
        return BR.viewModel;
    }

    @Override
    public LoginViewModel initViewModel() {
        return new LoginViewModel(this);
    }

    @Override
    public void initViewObservable() {
        super.initViewObservable();
        viewModel.passVisible.addOnPropertyChangedCallback(new Observable.OnPropertyChangedCallback() {
            @Override
            public void onPropertyChanged(Observable sender, int propertyId) {
                if(viewModel.passVisible.get()){//显示密码
                    binding.passEdt.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
                    binding.passEdt.setSelection(viewModel.password.get().length());
                    binding.passImg.setImageResource(R.mipmap.show_psw_press);
                }else{
                    binding.passEdt.setTransformationMethod(PasswordTransformationMethod.getInstance());
                    binding.passEdt.setSelection(viewModel.password.get().length());
                    binding.passImg.setImageResource(R.mipmap.show_psw);
                }
            }
        });
        binding.shanghuEdt.addTextChangedListener(this);
        binding.gonghaoEdt.addTextChangedListener(this);
        binding.passEdt.addTextChangedListener(this);
    }

    @Override
    public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

    }

    @Override
    public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
        if(binding.shanghuEdt.getText().toString().length()>0&&binding.gonghaoEdt.getText().toString().length()>0&&binding.passEdt.getText().toString().length()>0){
            binding.bnLogin.setAlpha(1.0f);
            binding.bnLogin.setEnabled(true);
        }else{
            binding.bnLogin.setAlpha(0.6f);
            binding.bnLogin.setEnabled(false);
        }
    }

    @Override
    public void afterTextChanged(Editable editable) {

    }

    @Override
    protected void onStart() {
        super.onStart();
        fullScreen();
    }

    /**
     * 通过设置全屏,设置状态栏透明
     */
    private void fullScreen() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                //5.x开始需要把颜色设置透明,否则导航栏会呈现系统默认的浅灰色
                Window window = this.getWindow();
                View decorView = window.getDecorView();
                //两个 flag 要结合使用,表示让应用的主体内容占用系统状态栏的空间
                int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
                decorView.setSystemUiVisibility(option);
                window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                window.setStatusBarColor(Color.TRANSPARENT);
                //导航栏颜色也可以正常设置
//                window.setNavigationBarColor(Color.TRANSPARENT);
            } else {
                Window window = this.getWindow();
                WindowManager.LayoutParams attributes = window.getAttributes();
                int flagTranslucentStatus = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
                int flagTranslucentNavigation = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
                attributes.flags |= flagTranslucentStatus;
//                attributes.flags |= flagTranslucentNavigation;
                window.setAttributes(attributes);
            }
        }
    }
}