Android开发复用代码
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目录
- 1.设置状态栏透明
- 2.Dialog样式一（是/否）
- 3.从下方弹出页面
- 4.封装的PrefStore
- 5.封装的PicassoUtils
- 6.封装的OkHttpUtils
- 7.简单适配器
- 8.抖音的简单实现
- 9.封装的GsonUtils
- 10.加载时间
- 11.获取屏幕高度/宽度
- 12.android简单适配
- 13.击碎爆破粒子
- 14.WindowUtils工具类
- 15.常用框架-PhotoView缩放图片
- 16.常用框架-加载gif
- 17.判断App是第一次启动
- 18.sqlite数据库
- 19.流式布局原理
- 20.监听屏幕滑动简单原理
- 21.Listview任意行生成截图分享
- 22.获取当前本地apk的版本/版本号名称
- 23.ImageView高度根据图片比例自适应
- 24.ToastUtil封装类
- 25.Android四大组件-广播入门
- 26.EditText的监听-TextWatcher三个回调
- 27.Activity+viewPage+Fragment+RadioButton实现左右滑动切换页面
- 28.估值器-贝塞尔曲线-控件封装-抖音点赞特效
1.设置状态栏透明
if (Build.VERSION.SDK_INT >= 21)
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
getWindow().setStatusBarColor(Color.TRANSPARENT);
int ui = decorView.getSystemUiVisibility();
ui |=View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR; //设置状态栏中字体的颜色为白色
decorView.setSystemUiVisibility(ui);
if (Build.VERSION.SDK_INT >= 21)
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
getWindow().setStatusBarColor(Color.BLACK);
int ui = decorView.getSystemUiVisibility();
ui |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; //设置状态栏中字体的颜色为黑色
decorView.setSystemUiVisibility(ui);
2.Dialog样式一（是/否）
private void showNormalDialog(final String xid)
final AlertDialog.Builder normalDialog =
new AlertDialog.Builder(alldata.this);
normalDialog.setTitle("删除");
normalDialog.setMessage("确认是否删除?");
normalDialog.setPositiveButton("确定",
new DialogInterface.OnClickListener()
@Override
public void onClick(DialogInterface dialog, int which)
del(xid);
);
normalDialog.setNegativeButton("关闭",
new DialogInterface.OnClickListener()
@Override
public void onClick(DialogInterface dialog, int which)
Toast.makeText(alldata.this, "关闭", Toast.LENGTH_SHORT).show();
);
// 显示
normalDialog.show();
2.1 Dialog样式二（新手引导）
private void newYingdao()
LayoutInflater inflater = LayoutInflater.from(courseInfo.this);
View view = inflater.inflate(R.layout.tips1, null);
AlertDialog.Builder builder=new AlertDialog.Builder(courseInfo.this,R.style.TransparentDialog);
builder.setView(view);
final AlertDialog dialog=builder.create();
final Button b=view.findViewById(R.id.button4);
final LinearLayout tips=view.findViewById(R.id.tips);
tips.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
dialog.dismiss();
);
b.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
dialog.dismiss();
);
dialog.show();
<style name="TransparentDialog" parent="Theme.AppCompat.Dialog">
<item name="android:windowBackground">@color/transparent</item>
</style>
2.2 Diaglog点击其他地方不销毁
//创建dialog
final AlertDialog dialog=builder.create();
//dialog点击其他地方不关闭
dialog.setCancelable(false);
3.从下方弹出页面
private void dialogs2()
LayoutInflater inflater = LayoutInflater.from(getApplication());
View view = inflater.inflate(R.layout.home_ulist, null);
AlertDialog.Builder builder=new AlertDialog.Builder(home.this);
builder.setView(view);
final AlertDialog dialog=builder.create();
Window window = dialog.getWindow();
final TextView bianji=view.findViewById(R.id.bianji);
users(bianji);
window.setGravity(Gravity.BOTTOM); //此处可以设置dialog显示的位置
window.setWindowAnimations(R.style.SelectUpload2); //添加动画
dialog.show();
WindowManager.LayoutParams params =
dialog.getWindow().getAttributes();
WindowManager wm = (WindowManager)home.this.getSystemService(Context.WINDOW_SERVICE);
params.width = WindowManager.LayoutParams.MATCH_PARENT;
dialog.getWindow().setBackgroundDrawableResource(R.color.white);
dialog.getWindow().setAttributes(params);
<style name="SelectUpload2">
<item name="android:windowEnterAnimation">@anim/dialog_enter</item> //进入时的动画
<item name="android:windowExitAnimation">@anim/dialog_exit</item> //退出时的动
</style>
4.封装的PrefStore
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
public class PrefStore
private static final String STORE_NAME = "Settings";
private static Context mContext = null;
private static PrefStore instance = null;
public static PrefStore getInstance(Context context)
if (instance == null)
instance = new PrefStore(context);
return instance;
public PrefStore(Context context)
mContext = context.getApplicationContext();
public boolean savePref(String key, String value)
if (mContext != null)
SharedPreferences pref = mContext.getSharedPreferences(STORE_NAME,
Context.MODE_PRIVATE);
Editor editor = pref.edit();
editor.putString(key, value);
editor.commit();
return true;
else
return false;
public String getPref(String key, String defValue)
if (mContext != null)
SharedPreferences pref = mContext.getSharedPreferences(STORE_NAME,
Context.MODE_PRIVATE);
return pref.getString(key, defValue);
else
return null;
public boolean removePref(String key)
if (mContext != null)
SharedPreferences pref = mContext.getSharedPreferences(STORE_NAME,
Context.MODE_PRIVATE);
Editor editor = pref.edit();
editor.remove(key);
editor.commit();
return true;
else
return false;
public boolean clearPref()
if (mContext != null)
SharedPreferences pref = mContext.getSharedPreferences(STORE_NAME,
Context.MODE_MULTI_PROCESS);
Editor editor = pref.edit();
editor.clear();
editor.commit();
return true;
else
return false;
4.1 封装的PrefStore使用
PrefStore pref = PrefStore.getInstance(Login.this);
pref.savePref("Phone", USERS.getPhone());
pref.getPref("Uid","1")
5.封装的PicassoUtils
PicassoUtils.loadImageViewCrop2(ChangeHeadImage.this,localhost_path+ result, imageView);
6.封装的OkHttpUtils
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import java.util.Map;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
/**
* OkHttp的封装工具类
*/
public class OkHttpUtils
//TAG
private static final String TAG = OkHttpUtils.class.getSimpleName();
//声明客户端
private OkHttpClient client;
//防止多个线程同时访问所造成的安全隐患
private volatile static OkHttpUtils okHttpUtils;
//定义提交类型Json
private static final MediaType JSON = MediaType.parse("application/json;charset=utf-8");
//定义提交类型String
private static final MediaType STRING = MediaType.parse("text/x-markdown;charset=utf-8");
//子线程
private Handler handler;
//构造方法
private OkHttpUtils()
//初始化
client = new OkHttpClient();
handler = new Handler(Looper.getMainLooper());
//单例模式
public static OkHttpUtils getInstance()
// OkHttpUtils okUtils = null;
// if (okHttpUtils == null)
// //线程同步
// synchronized (OkHttpUtils.class)
// if (okUtils == null)
// okUtils = new OkHttpUtils();
// okHttpUtils = okUtils;
//
//
//
OkHttpUtils okUtils = new OkHttpUtils();
return okUtils;
/**
* 请求的返回结果是json字符串
* @param jsonValue
* @param callBack
*/
private void onsuccessJsonStringMethod(final String jsonValue, final FuncJsonString callBack)
handler.post(new Runnable()
@Override
public void run()
if (callBack != null)
try
//解析json
callBack.onResponse(jsonValue);
catch (Exception e)
);
/**
* 求的返回结果是json对象
* @param jsonValue
* @param callBack
*/
private void onsuccessJsonObjectMethod(final String jsonValue, final FuncJsonObject callBack)
handler.post(new Runnable()
@Override
public void run()
if (callBack != null)
try
callBack.onResponse(new JSONObject(jsonValue));
catch (JSONException e)
e.printStackTrace();
);
/**
* 求的返回结果是json数组
* @param data
* @param callBack
*/
private void onsuccessJsonByteMethod(final byte[] data, final FuncJsonObjectByte callBack)
handler.post(new Runnable()
@Override
public void run()
if (callBack != null)
callBack.onResponse(data);
);
/**
* 同步请求,不是很常用，因为会阻塞线程
* @param url
* @return
*/
public String syncGetByURL(String url)
//构建一个Request请求
Request request = new Request.Builder().url(url).build();
Response response = null;
try
//同步请求数据
response = client.newCall(request).execute以上是关于Android开发复用代码的主要内容，如果未能解决你的问题，请参考以下文章
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