实践材料及成果

src/SkinActivity.java

@@ -0,0 +1,161 @@
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.BaseAdapter;
+import android.widget.GridView;
+import android.widget.RelativeLayout;
+
+import net.micode.notes.R;
+import net.micode.notes.model.SkinInfo;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 换肤功能实现
+ */
+public class SkinActivity extends Activity {
+    private SharedPreferences mSharedPreferences;
+    private SkinListAdapter mListAdapter;
+    private GridView gridView;
+    private List<SkinInfo> mSkinInfoList = new ArrayList<>();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_skin);
+        gridView = (GridView) findViewById(R.id.gridView);
+        mSharedPreferences = getSharedPreferences("skin_info", MODE_PRIVATE);
+
+
+
+        //定义皮肤
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor(R.color.color_4963F4)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor( R.color.color_3372e4)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor(R.color.color_673AB7)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor( R.color.color_4CAF50)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor(R.color.color_00BCD4)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor( R.color.color_9C27B0)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor( R.color.color_3F51B5)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor(R.color.color_009688)));
+        mSkinInfoList.add(new SkinInfo(0, getResources().getColor(R.color.color_FF9800)));
+
+
+
+        //初始化适配器
+        mListAdapter =new SkinListAdapter(SkinActivity.this);
+
+        //设置adapter
+        gridView.setAdapter(mListAdapter);
+
+        //设置数据
+        mListAdapter.setList(mSkinInfoList);
+
+
+        //选中
+        int current_position = mSharedPreferences.getInt("current_position", 0);
+        if (current_position != 0) {
+            mListAdapter.setCurrentIndex(current_position);
+        }
+
+
+        //点击事件处理选中的颜色
+        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, final int position, long l) {
+                final SkinInfo skinInfo = (SkinInfo) gridView.getAdapter().getItem(position);
+                mListAdapter.setCurrentIndex(position);
+                AlertDialog.Builder builder =new AlertDialog.Builder(SkinActivity.this);
+                builder.setTitle("操作");
+                builder.setMessage("确定一键换肤吗？");
+                builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        finish();
+                    }
+                });
+                builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        //实现换肤
+                        SharedPreferences.Editor edit = mSharedPreferences.edit();
+                        edit.putInt("skin_mode", skinInfo.getColorId());
+                        edit.putInt("current_position", position);
+                        edit.commit();
+                        setResult(2000);
+                        finish();
+                    }
+                });
+
+                builder.show();
+            }
+        });
+
+    }
+
+
+
+    class  SkinListAdapter extends BaseAdapter{
+
+        private int currentIndex = 0;
+        private List<SkinInfo>  mSkinInfoList=new ArrayList<>();
+        private LayoutInflater mLayoutInflater;
+        public SkinListAdapter(Context context){
+            mLayoutInflater =LayoutInflater.from(context);
+
+        }
+
+        public void setList(List<SkinInfo> list){
+            this.mSkinInfoList =list;
+            notifyDataSetChanged();
+        }
+
+
+        @Override
+        public int getCount() {
+            return mSkinInfoList.size();
+        }
+
+        @Override
+        public SkinInfo getItem(int i) {
+            return mSkinInfoList.get(i);
+        }
+
+        @Override
+        public long getItemId(int i) {
+            return i;
+        }
+
+        @Override
+        public View getView(int i, View view, ViewGroup viewGroup) {
+            view =mLayoutInflater.inflate(R.layout.skin_list_item,viewGroup,false);
+            RelativeLayout  checkbox = (RelativeLayout) view.findViewById(R.id.checkbox);
+            View color_line =view.findViewById(R.id.color_line);
+            SkinInfo item = getItem(i);
+            color_line.setBackgroundColor(item.getColorId());
+
+            if (currentIndex ==i){
+                checkbox.setVisibility(View.VISIBLE);
+            }else {
+                checkbox.setVisibility(View.GONE);
+            }
+
+            return view;
+        }
+
+        public void setCurrentIndex(int position) {
+            this.currentIndex = position;
+            notifyDataSetChanged();
+        }
+    }
+
+
+}

src/SplashActivity.java

@@ -0,0 +1,29 @@
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+
+import net.micode.notes.R;
+
+public class SplashActivity extends Activity {
+    Handler mHandler=new Handler();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_splash);
+        // 当计时结束时，跳转至NotesListActivity
+        mHandler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                Intent intent=new Intent();
+                intent.setClass(SplashActivity.this, NotesListActivity.class);
+                startActivity(intent);
+                finish(); //销毁欢迎页面
+            }
+        }, 2000); // 2 秒后跳转
+
+
+    }
+}