现在开发中为了提升开发的效率和代码的高效利用，我们更愿意将经常用的方法封装起来，更方便的服务开发过程，所有今天给大家带来一个Activity封装，并在具体场景中实现！
这里我们进行封装方法：
1.自定义toolbar
2.Intent启动
3.Toast
4. show ProgressDialog
5.hide ProgressDialog
6.click menu and event
.......
下面贴出代码：
这里我们需要用到java的回收机制： 主要是用来对anctivity的回收
public class ActivityStackManager {
private staticVectoractivityStack=newVector<>();
public static voidadd(BaseActivity activity) {
activityStack.add(activity);
}
public static voidremove(BaseActivity activity) {
activityStack.remove(activity);
}
public static voidclear() {
activityStack.clear();
}
public staticBaseActivitygetLast() {
returnactivityStack.lastElement();
}
public static intgetSize() {
returnactivityStack.size();
}
public static voidexit() {
for(BaseActivity activity :activityStack) {
if(activity !=null) {
activity.finish();
}
}
clear();
}
下面我们具体看看封装：
public class BaseActivity extends AppCompatActivity {
protected Toolbar mToolbar;
protected TextView toolbar_title;
protected ImageView right_buttom;
protected Toast mToast;
protected ProgressDialog bar;
@Override
protected voidonCreate(@NullableBundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
//这里采用 弱引用
WeakReference weekReferece =newWeakReference<>(this);
ActivityStackManager.add(weekReferece.get());
}
protected void init() {
mToolbar= (Toolbar) findViewById(R.id.toolbar);
toolbar_title= (TextView) findViewById(R.id.tv_toolbar_title);
right_buttom= (ImageView) findViewById(R.id.btn_right);
if(mToolbar!=null) {
mToolbar.setNavigationIcon(R.drawable.left_jiantou);
toolbar_title.setText("");
setSupportActionBar(mToolbar);
}
}
@Override
protected voidonResume() {
super.onResume();
MobclickAgent.onResume(this);
}
@Override
protected voidonPause() {
super.onPause();
MobclickAgent.onPause(this);
}
@Override
protected voidonDestroy() {
super.onDestroy();
ActivityStackManager.remove(this);
}
封装Intent，但是需要携带数据还是需要重新写intent
public void go(Class cls) {
startActivity(newIntent(this,cls));
}
//String ----> text show
public void showToast(CharSequence text) {
if(mToast==null) {
mToast= Toast.makeText(this,text,Toast.LENGTH_LONG);
}
mToast.setText(text);
mToast.show();
}
//getResources -----> text show
public void showToast(@StringResintres) {
showToast(getResources().getText(res));
}
//show ProgressDialog
public voidshowProgress(String msg) {
if(bar==null) {
bar=newProgressDialog(this);
bar.setMessage(msg);
bar.setIndeterminate(true);
bar.setCancelable(false);
}
if(bar.isShowing()) {
bar.setMessage(msg);
}
bar.show();
}
//hide ProgressDialog
public voiddismissDialog() {
if(bar!=null&&bar.isShowing()) {
bar.setCancelable(false);
bar.dismiss();
}
}
//click menu and event
public booleanonOptionsItemSelected(MenuItem item) {
if(item.getItemId() == android.R.id.home){
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
下面我们就来继承BaseActivity，实现这些封装的方法
public class StarActivity extends BaseActivity {
@Override
protected voidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_star);
init();
}
@Override
protected voidinit() {
super.init();
toolbar_title.setText("我是一个toobar title");
right_buttom.setVisibility(View.VISIBLE);
right_buttom.setImageResource(R.drawable.right_hui);
right_buttom.setOnClickListener(newView.OnClickListener() {
@Override
public voidonClick(View view) {
showProgress("正在加载中...");
newThread(newRunnable() {
@Override
public voidrun() {
try{
sleep(2000);
}catch(InterruptedException e) {
e.printStackTrace();
}
}
}).start();
}
});
findViewById(R.id.btn_showToast).setOnClickListener(newView.OnClickListener() {
@Override
public voidonClick(View view) {
showToast("Click Me Show Toast");
}
});
findViewById(R.id.btn_goIntent).setOnClickListener(newView.OnClickListener() {
@Override
public voidonClick(View view) {
go(StarTwoActivity.class);
}
});
}
上面只是贴出大概的代码，其他简单的就不贴出来！
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