3.25

将应用密码加密保存与文件中。每次登陆获取密码并对比。

public class LoginDirectActivity extends AppCompatActivity implements View.OnClickListener {
    private EditText edit_input_text;
    private Button btn_comeIn;
    private TextView tv_setPsw;
    private static final String TAG = "Login2Activity";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_direct_login);
        bindView();
    }

    private void bindView() {
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        edit_input_text = findViewById(R.id.edit_login2_input_text);
        btn_comeIn = findViewById(R.id.btn_login2_comeIn);
        btn_comeIn.setOnClickListener(this);
        tv_setPsw = findViewById(R.id.tv_setPsw);
        tv_setPsw.setOnClickListener(this);
    }


    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.tv_setPsw:
                Intent setPsw_intent = new Intent(LoginDirectActivity.this, LoginActivity.class);
                startActivity(setPsw_intent);
                LoginDirectActivity.this.finish();
//                overridePendingTransition(R.anim.out_to_left,R.anim.in_from_right);
                break;
            case R.id.btn_login2_comeIn:
                String psw = edit_input_text.getText().toString().trim();
                if (psw.isEmpty()) {
                    Toast.makeText(this, "密码不能为空!", Toast.LENGTH_SHORT).show();
                    return;
                }
                String readInfoByContext = FileUtils.readInfoByContext(this);
                if (psw.equals(readInfoByContext)) {
                    Toast.makeText(this, "登录成功!", Toast.LENGTH_SHORT).show();
                    Intent intent = new Intent(this, MainActivity.class);
                    startActivity(intent);
//                    overridePendingTransition(R.anim.out_to_left,R.anim.in_from_right);
                } else {
                    Toast.makeText(this, "密码不正确!", Toast.LENGTH_SHORT).show();
                }
                break;

        }
    }
}