封裝篇——基類Activity
阿新 • • 發佈：2019-02-16
說說為什麼要做基類Activity：
1. 統一風格，易調整（吐司、系統欄顏色、進入退出動畫…）
2. 細化基礎生命週期方法，減少程式碼量。
總而言之，封裝就是為了更優雅的寫程式碼。。。
本文將從以下思路展開：
先要理清楚下Android中 Activity 的一些知識點：
- android Activity 生命週期詳解 (在 執行Activity、按下返回按鍵、按Home鍵、
按下電源鍵、跳轉新Activity、再次開啟、螢幕旋轉 等場景下Activity的生命週期走向)； - Activity的進入退出時動畫的設定；
- 螢幕旋轉時如何保持資料狀態與佈局；
瞭解完知識點後我們就可以進行簡單的封裝了
我們先建立一個 BaseAppCompatActivity 類對生命週期進行抽離打包，該類與業務完全無關
看圖中思路就行，程式碼很簡單。
/**
* Created by wenld- on 2016/4/6.
*/
public abstract class BaseAppCompatActivity extends AppCompatActivity {
protected static String TAG_LOG = null;
protected Context mContext = null;
public /**
* Created by wenld- on 2016/3/7.
*/
public abstract class BaseActivity extends BaseAppCompatActivity implements IBaseView {
/**
* loading view controller
*/
private VaryViewHelperController mVaryViewHelperController = null;
@Override
protected int getOverridePendingTransitionMode() {
return LEFT;
}
@Override
public void setContentView(int layoutResID) {
super.setContentView(layoutResID);
if (null != getLoadingTargetView()) {
mVaryViewHelperController = new VaryViewHelperController(getLoadingTargetView());
}
setStatusBar();
}
protected void setStatusBar() {
StatusBarUtil.setColor(this, getResources().getColor(R.color.colorPrimary));
}
/**
* get loading target view
*/
protected abstract View getLoadingTargetView();
protected void readyGo(Class<?> clazz) {
Intent intent = new Intent(this, clazz);
startActivity(intent);
}
protected void readyGo(Class<?> clazz, Bundle bundle) {
Intent intent = new Intent(this, clazz);
if (null != bundle) {
intent.putExtras(bundle);
}
startActivity(intent);
}
protected void readyGoThenKill(Class<?> clazz) {
Intent intent = new Intent(this, clazz);
startActivity(intent);
finish();
}
protected void readyGoThenKill(Class<?> clazz, Bundle bundle) {
Intent intent = new Intent(this, clazz);
if (null != bundle) {
intent.putExtras(bundle);
}
startActivity(intent);
finish();
}
protected void readyGoForResult(Class<?> clazz, int requestCode) {
Intent intent = new Intent(this, clazz);
startActivityForResult(intent, requestCode);
}
protected void readyGoForResult(Class<?> clazz, int requestCode, Bundle bundle) {
Intent intent = new Intent(this, clazz);
if (null != bundle) {
intent.putExtras(bundle);
}
startActivityForResult(intent, requestCode);
}
protected void showToast(String msg) {
//防止遮蓋虛擬按鍵
if (null != msg && !StringUtils.isEmpty(msg)) {
Snackbar.make(getLoadingTargetView(), msg, Snackbar.LENGTH_SHORT).show();
}
}
/**
* toggle show loading
*/
protected void toggleShowLoading(boolean toggle, String msg) {
if (null == mVaryViewHelperController) {
throw new IllegalArgumentException("You must return a right target view for loading");
}
if (toggle) {
mVaryViewHelperController.showLoading(msg);
} else {
mVaryViewHelperController.restore();
}
}
/**
* toggle show empty
*/
protected void toggleShowEmpty(boolean toggle, String msg, View.OnClickListener onClickListener) {
if (null == mVaryViewHelperController) {
throw new IllegalArgumentException("You must return a right target view for loading");
}
if (toggle) {
mVaryViewHelperController.showEmpty(msg, onClickListener);
} else {
mVaryViewHelperController.restore();
}
}
/**
* toggle show error
*/
protected void toggleShowError(boolean toggle, String msg, View.OnClickListener onClickListener) {
if (null == mVaryViewHelperController) {
throw new IllegalArgumentException("You must return a right target view for loading");
}
if (toggle) {
mVaryViewHelperController.showError(msg, onClickListener);
} else {
mVaryViewHelperController.restore();
}
}
/**
* toggle show network error
*/
protected void toggleNetworkError(boolean toggle, View.OnClickListener onClickListener) {
if (null == mVaryViewHelperController) {
throw new IllegalArgumentException("You must return a right target view for loading");
}
if (toggle) {
mVaryViewHelperController.showNetworkError(onClickListener);
} else {
mVaryViewHelperController.restore();
}
}
}實際呼叫請大家自行實驗，，請大家不要過分看重程式碼實現，思路最重要…