安卓开发 第六篇 我的安卓应用架构设计-----BaseActivity类

BaseActivity是项目中所有activity的基类，含有一些公共的属性和方法，同时控制toolbar的显示，以及其他一些功能。。。

来看源码：

/** * BaseActivity 是所有activity的基类，把一些公共的方法放到里面 * <p> * Created by tianlai on 16-3-3. */
public abstract class BaseActivity extends AppCompatActivity implements BaseUiView {

    private ActivityComponent activityComponent;

    @Inject
    protected LayoutInflater inflater;

    @Inject
    protected Context context;

    @Inject
    protected AppPageManager appPageManager;

    protected Toolbar toolbar;

    protected LinearLayout rootView;

    protected BasePresenter presenter;

    protected LoadingDialog loadingDialog;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 使用依赖注入
        initInjector();
        injectActivity(activityComponent);

        //设置根布局
        rootView = (LinearLayout) inflateView(R.layout.activity_base);
        setContentView(rootView);

        // 将当前activity加入ActivityManager中
        appPageManager.addActivity(this);

        // 设置导航栏
        toolbar = (Toolbar) find(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayShowTitleEnabled(false);

        initToolbar(toolbar);

        //初始化加载数据对话框
        loadingDialog=new LoadingDialog(this);
        loadingDialog.setCanceledOnTouchOutside(false);
        loadingDialog.setCancelable(true);

        loadingDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(DialogInterface loadingDialog) {
                presenter.cancleLoading();
            }
        });

        //初始化Presenter
        presenter = getPresenter();
        if (presenter == null) {
            throw new NullPointerException("presenter 不能为 Null");
        } else {
            presenter.oncreate(savedInstanceState, context);
        }


    }

    /** * 初始化Toolbar * * @param toolbar */
    protected void initToolbar(Toolbar toolbar) {

        toolbar.setNavigationIcon(R.mipmap.ic_toolbar_navigation);

        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });
    }

    /** * 设置页面的标题 * * @param title */
    protected void setPageTitle(String title) {
        setPageTitle(FontUtil.addColor("#F04877", title));
    }

    /** * @param title */
    protected void setPageTitle(CharSequence title) {
        toolbar.setTitle(title);
    }

    /** * @param resId */
    protected void setNavigationIcon(int resId) {
        toolbar.setNavigationIcon(resId);
    }

    /** * // 加载ContentView的内容 * * @param view */
    protected void setContentViewToRoot(View view) {

        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout
                .LayoutParams.MATCH_PARENT);
        rootView.addView(view, params);
    }

    protected void setContentViewToRoot(int layoutId) {
        setContentViewToRoot(inflateView(layoutId));
    }


    /** * 进行注入 * * @param activityComponent */
    protected abstract void injectActivity(ActivityComponent activityComponent);

    /** * 获取 ActivityModule * * @return */
    protected ActivityModule getActivityModule() {
        return new ActivityModule(this);
    }

    /** * 获取注入Activity的Presenter对象 * * @return */
    protected abstract BasePresenter getPresenter();


    /** * 隐藏Toolbar */
    protected void hideToolbar() {

        toolbar.setVisibility(View.GONE);
    }

    /** * 把布局变成View * * @param layoutId * @return */
    protected View inflateView(int layoutId) {
        return inflater.inflate(layoutId, null);
    }

    /** * 设置注入器 */
    private void initInjector() {
        ApplicationComponent appComponent = getAppComponent();
        appComponent.inject(this);

        activityComponent = DaggerActivityComponent.builder()
                .applicationComponent(appComponent)
                .activityModule(new ActivityModule(this))
                .build();
    }


    /** * 获取 ApplicationComponent * * @return */
    public ApplicationComponent getAppComponent() {
        return ((AppApplication) getApplication()).getAppComponent();
    }

    /** * activityComponent的getter方法 * * @return */
    public ActivityComponent getActivityComponent() {

        return activityComponent;
    }

    /** * 显示页面加载状态 */
    @Override
    public void showLoading() {
        if (loadingDialog != null && !loadingDialog.isShowing()) {
            loadingDialog.show();
        }
    }

    /** * 加载完成，隐藏加载状态 */
    @Override
    public void loadingComplete() {

        if (loadingDialog != null && loadingDialog.isShowing()) {
            loadingDialog.dismiss();
        }
    }

    @Override
    protected void onResume() {
        super.onResume();

        presenter.onResume(this);
        Bugtags.onResume(this);
    }

    @Override
    protected void onPause() {
        super.onPause();

        presenter.onPause();
        Bugtags.onPause(this);
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        presenter.onSave(outState);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        appPageManager.removeActivity(this);

        presenter.onDestroy();

        presenter = null;

        ToastUtil.cancleToast();

    }

    /** * 生成Toolbar右边Action按钮 * * @param name * @param viewId * @return */
    @SuppressLint("NewApi")
    public TextView addRightActionView(CharSequence name, int viewId) {
        TextView tv_right = new TextView(context);

        if (viewId == 0) {
            tv_right.setId(R.id.tv_right_action);
        } else {
            tv_right.setId(viewId);
        }

        tv_right.setTextColor(getResources().getColor(R.color.font_red));
        tv_right.setText(name);
        tv_right.setCompoundDrawablePadding(DpUtil.dp2px(context, 3));
        tv_right.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14);
        tv_right.setGravity(Gravity.CENTER);

        Toolbar.LayoutParams layoutParams = new Toolbar.LayoutParams(Toolbar.LayoutParams.WRAP_CONTENT,
                Toolbar.LayoutParams.WRAP_CONTENT);
        layoutParams.rightMargin = DpUtil.dp2px(context, 10);
        layoutParams.gravity = Gravity.CENTER_VERTICAL | Gravity.RIGHT;
        tv_right.setLayoutParams(layoutParams);

        return tv_right;

    }

    /** * 生成Toolbar中心显示titile的View * * @return */
    @SuppressLint("NewApi")
    public TextView addCenterTitleView(String title, int viewId) {
        TextView tv_title = new TextView(context);

        if (viewId == 0) {
            tv_title.setId(R.id.tv_center_title);
        } else {
            tv_title.setId(viewId);
        }

        tv_title.setTextColor(getResources().getColor(R.color.font_red));
        tv_title.setCompoundDrawablePadding(DpUtil.dp2px(context, 3));
        tv_title.setTextSize(TypedValue.COMPLEX_UNIT_SP, 18);
        tv_title.setGravity(Gravity.CENTER);

        Toolbar.LayoutParams layoutParams = new Toolbar.LayoutParams(Toolbar.LayoutParams.WRAP_CONTENT,
                Toolbar.LayoutParams.WRAP_CONTENT);
        layoutParams.gravity = Gravity.CENTER;
        tv_title.setLayoutParams(layoutParams);

        if (title != null) {
            tv_title.setText(title);
        }

        return tv_title;
    }

    /** * 设置应用的字体不随系统设置的更改而更改 */
    @Override
    public Resources getResources() {
        Resources resources = super.getResources();
        Configuration config = new Configuration();
        config.setToDefaults();
        resources.updateConfiguration(config, resources.getDisplayMetrics());
        return resources;
    }

    public AppPageManager getAppPageManager() {
        return appPageManager;
    }

    public void setAppPageManager(AppPageManager appPageManager) {
        this.appPageManager = appPageManager;
    }

    /** * 获取view * * @param viewId * @return */
    public View find(int viewId) {
        return findViewById(viewId);
    }

    /** * 获取view * * @param viewId * @return */
    public View find(View parent, int viewId) {
        return parent.findViewById(viewId);
    }

    /** * 隐藏软键盘 */
    protected void hideIME() {
        ((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(
                this.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
    }

}

BaseActivity中的有些方法是由于项目的需要而添加的，可能在其他项目中不需要，这点请大家自行忽略。

其中BaseUiView 是所有对view操作接口的基类：

/** * BaseUiView 是应用中所有UiView的顶级抽象类，适合抽取UiView的公共方法和属性 * * UiView：MVP架构中的V。 * * Created by tianlai on 16-3-3. */
public interface BaseUiView {

    /** * showLoading 方法主要用于页面请求数据时显示加载状态 */
    public void showLoading();

    /** * showEmpty 方法用于请求的数据为空的状态 */
    public void showEmpty();

    /** * showError 方法用于请求数据出错 */
    public void showError();

    /** * showError 方法用于请求数据完成 */
    public void loadingComplete();


}

下面来看一个具体的activity：

/** * LoginActivity app的登录页面 * <p> * Created by tianlai on 16-3-3. */
public class LoginActivity extends BaseActivity implements LoginView {

    @Inject
    LoginPresenter loginPresenter;

    @Bind(R.id.edt_account)
    EditText edtAccount;

    @Bind(R.id.edt_psw)
    EditText edtPsw;

    @Bind(R.id.tv_login)
    TextView tvLogin;

    @Bind(R.id.tv_register)
    TextView tvRegister;

    @Bind(R.id.tv_forgetpsw)
    TextView tvForgetpsw;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        View contentView = inflateView(R.layout.activity_login);

        setContentViewToRoot(contentView);

        ButterKnife.bind(this, contentView);

        hideToolbar();

    }

    @OnClick({R.id.tv_login,R.id.tv_register,R.id.tv_forgetpsw})
    public void OnClick(View v){
        switch (v.getId()){
            case R.id.tv_login:
                    //进行登录请求
                loginPresenter.login(getPhoneNum(),getPasswd());
                break;
            case R.id.tv_register:
                toRegisterPage();
                break;

            case R.id.tv_forgetpsw:
                toResetPasswdPage();
                break;
        }
    }

    @Override
    protected void injectActivity(ActivityComponent activityComponent) {
        activityComponent.inject(this);
    }

    @Override
    protected BasePresenter getPresenter() {
        return loginPresenter;
    }


    @Override
    public void showEmpty() {

    }

    @Override
    public void showError() {

    }

    @Override
    public void toRegisterPage() {
        startActivity(new Intent(this,RegisterActivity.class));
    }

    @Override
    public String getPhoneNum() {
        return edtAccount.getText().toString().trim();
    }

    @Override
    public String getPasswd() {
        return edtPsw.getText().toString().trim();
    }

    @Override
    public void toMainPage() {
        startActivity(new Intent(this,MainActivity.class));

        finish();
    }

    @Override
    public void toResetPasswdPage() {
        startActivity(new Intent(this,ResetPswActivity.class));
    }
}

而LoginView ：

/** * * Created by tianlai on 16-3-3. */
public interface LoginView extends BaseUiView {
    /** * 去到注册页面 */
    public void toRegisterPage();

    /** * 获取登录手机号 * * @return */
    public String getPhoneNum();

    /** * 获取登录密码 * * @return */
    public String getPasswd();

    /** * 去主页面 */
    public void toMainPage();

    /** * 去重置密码页面 */
    public void toResetPasswdPage();
}

页面布局（activity_login.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:background="@color/bg_login" android:gravity="center" android:orientation="vertical">

    <TextView  android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:text="用户登录" android:textColor="@color/white" android:textSize="25sp" android:textStyle="bold" />

    <EditText  android:id="@+id/edt_account" android:layout_width="match_parent" android:layout_height="50dp" android:layout_marginLeft="40dp" android:layout_marginRight="40dp" android:paddingLeft="8dp" android:paddingRight="8dp" android:maxLength="20" android:singleLine="true" android:textColor="@color/font_black_light" android:textColorHint="@color/hint_color" android:hint="@string/hint_account" android:layout_marginTop="60dp" android:background="@color/white" />

    <EditText  android:id="@+id/edt_psw" android:layout_width="match_parent" android:layout_height="40dp" android:layout_marginLeft="40dp" android:layout_marginRight="40dp" android:paddingLeft="8dp" android:singleLine="true" android:paddingRight="8dp" android:maxLength="16" android:textColor="@color/font_black_light" android:textColorHint="@color/hint_color" android:hint="@string/hint_psw" android:layout_marginTop="20dp" android:background="@color/white" />

    <TextView  android:id="@+id/tv_login" android:layout_width="match_parent" android:layout_height="40dp" android:layout_marginLeft="40dp" android:layout_marginRight="40dp" android:layout_marginTop="40dp" android:background="@drawable/bg_btn_round_green_5" android:gravity="center" android:text="@string/login_now" android:textColor="@color/whitesmoke" android:textSize="18sp" />

    <TextView  android:id="@+id/tv_register" android:layout_width="match_parent" android:layout_height="40dp" android:layout_marginLeft="40dp" android:layout_marginRight="40dp" android:layout_marginTop="20dp" android:background="@drawable/bg_btn_round_green_5" android:gravity="center" android:text="@string/register_now" android:textColor="@color/whitesmoke" android:textSize="18sp" />

    <TextView  android:id="@+id/tv_forgetpsw" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="15dp" android:gravity="center" android:text="@string/forget_psw" android:textColor="@color/aqua" android:textSize="14sp" />

</LinearLayout>

最终效果：

额，发现没什么可以说的了，就到这里吧！

如果有更深的理解，本文将会修改；
如果有错误的地方，欢迎指正；
如果你有更好的理解，欢迎交流。

本文为原创文章，版权归博主所有，转载请注明出处。

更多资料：

我的github地址以及使用demo： https://github.com/naivor/naivorapp