自定義 流式佈局

Base


接口

我的APP

Api的接口

Volley框架

Model的層

Prosenter的層

MainActivity的

：

public class MainActivity extends BaseActivity implements IContract.IView ,MyView.oncall{
    private RecyclerView re_view;
    private MyView myview;
    private FlowLayout flow;
    @Override
    protected void initData() {
        String str = URLEncoder.encode("板鞋");

        MyPresenter myPresenter = (MyPresenter) p;
        myPresenter.Success(MyApi.url(str));
    }

    @Override
    protected void initView() {
        re_view = findViewById(R.id.re_view);
        re_view.setLayoutManager(new LinearLayoutManager(this));
        myview = findViewById(R.id.myview);
        myview.setCall(this);
        flow = findViewById(R.id.flow);
    }

    @Override
    protected BasePresenter initPresenter() {
        return new MyPresenter();
    }

    @Override
    protected int initLayout() {
        return R.layout.activity_main;

    }


    @Override
    public void Success(MyBean myBean) {
        List<MyBean.ResultBean> mlist = myBean.getResult();
        MyAdapter myAdapter = new MyAdapter(mlist, MainActivity.this);
        re_view.setAdapter(myAdapter);
        myAdapter.notifyDataSetChanged();
    }

    @Override	//點擊事件
    public void onclick() {
		//獲取輸入的文字
        String ed = myview.ed_one.getText().toString();
        //流式佈局
        flow.addTag(ed);
        //搜索框
        MyPresenter myPresenter = (MyPresenter) p;
        myPresenter.Success(MyApi.url(ed));

    }
}

adapter

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
List<MyBean.ResultBean> mlist;
private int oneHolder = 1;
private int twoHodel = 2;
Context context;
private oneHolder holder;
MainActivity mainActivity;
public MyAdapter(List<MyBean.ResultBean> mlist, Context context) {
this.mlist = mlist;
this.context = context;
mainActivity = (MainActivity) context;

}

@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    RecyclerView.ViewHolder holder = null;
    switch (i){
        case 1:
            View view = LayoutInflater.from(context).inflate(R.layout.one_layout,null);
            holder = new oneHolder(view);
            break;
        case 2:
            View view1 = LayoutInflater.from(context).inflate(R.layout.two_layout,null);
            holder = new twoHodel(view1);
            break;
            default:
                break;

    }
    return holder;
}

@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int i) {
    if (viewHolder instanceof oneHolder){
        Glide.with(context)
                .load(mlist.get(i).getMasterPic())
                .error(R.mipmap.ic_launcher)
                .priority(Priority.HIGH)
                .placeholder(R.mipmap.ic_launcher_round)
                .into(((oneHolder) viewHolder).imageView);
        ((oneHolder) viewHolder).textView1.setText(mlist.get(i).getCommodityName()+"");
        ((oneHolder) viewHolder).textView2.setText(mlist.get(i).getCommodityId()+"");
        ((oneHolder) viewHolder).lin1.setOnClickListener( new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(context, Main2Activity.class);
                mainActivity.startActivity(intent);
            }
        });
    }else if (viewHolder instanceof twoHodel){
        Glide.with(context)
                .load(mlist.get(i).getMasterPic())
                .error(R.mipmap.ic_launcher)
                .priority(Priority.HIGH)
                .placeholder(R.mipmap.ic_launcher_round)
                .into(((twoHodel) viewHolder).imageView2);
        ((twoHodel) viewHolder).textView_one.setText(mlist.get(i).getCommodityName()+"");
        ((twoHodel) viewHolder).textView_two.setText(mlist.get(i).getCommodityId()+"");
        ((twoHodel) viewHolder).lin2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(context,Main2Activity.class);
                mainActivity.startActivity(intent);
            }
        });
    }
}

@Override
public int getItemCount() {
    return mlist.size();
}
public class oneHolder extends RecyclerView.ViewHolder{
    ImageView imageView;
    TextView textView1;
    TextView textView2;
    LinearLayout lin1;
    public oneHolder(@NonNull View itemView) {
        super(itemView);
        imageView = itemView.findViewById(R.id.img);
        textView1 = itemView.findViewById(R.id.one);
        textView2 = itemView.findViewById(R.id.two);
        lin1 = itemView.findViewById(R.id.lin1);
    }
}
public class twoHodel extends RecyclerView.ViewHolder{
    ImageView imageView2;
    TextView textView_one;
    TextView textView_two;
    RelativeLayout lin2;
    public twoHodel(@NonNull View itemView) {
        super(itemView);
        imageView2 = itemView.findViewById(R.id.img2);
        textView_one = itemView.findViewById(R.id.re1);
        textView_two = itemView.findViewById(R.id.re2);
        lin2 = itemView.findViewById(R.id.lin2);
    }
}

@Override
public int getItemViewType(int position) {
    int commodityId = mlist.get(position).getCommodityId();
    if (commodityId%2==0){
        return oneHolder;
    }else {
        return twoHodel;
    }
}

}

自定義View

流失佈局

public class FlowLayout extends ViewGroup {
private Context context;
private int pixels;//屏幕寬度

//    private dlete ondelete;
public FlowLayout(Context context) {
    super(context);
    this.context = context;
    init(context);
}

public FlowLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
    this.context = context;
    init(context);
}

public FlowLayout(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    this.context = context;
    init(context);
}

public void init(Context context) {
    Resources resources = context.getResources();
    DisplayMetrics displayMetrics = resources.getDisplayMetrics();
    pixels = displayMetrics.widthPixels;
}

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    int childCount = getChildCount();
    int left = 0;
    int top = 0;
    int right = 0;
    int button = 0;
    int sprce = 0;
    for (int j = 0; j < childCount; j++) {
        //獲取某個子view
        View childAt = getChildAt(j);
        //主動測量view的寬、高，否則獲取的寬度和高度爲0
        childAt.measure(0, 0);
        //獲取測量的寬度
        int measuredWidth = childAt.getMeasuredWidth();
        //獲取測量的高度
        int measuredHeight = childAt.getMeasuredHeight();
        //計算座標
        left = right + sprce;
        right = left + measuredWidth;
        if (right > pixels) {
            left = sprce;
            right = left + measuredWidth;
            top = button + sprce;
        }
        button = measuredHeight + top;
        //擺放子view
        childAt.layout(left, top, right, button);
    }
}

public void addTag(String tag) {
    final TextView textView = new TextView(context);
    textView.setText(tag);
    textView.setTextColor(Color.RED);
    textView.setTextSize(20);
    textView.setPadding(10, 10, 10, 10);
    textView.setBackgroundColor(Color.parseColor("#fff5ee"));
    addView(textView);
}

}

WEbview交互:

public class Main2Activity extends AppCompatActivity {
private WebView web_view;
private Button bu_one;
private Button bu_two;
@SuppressLint(“JavascriptInterface”)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
web_view = findViewById(R.id.web_view);
bu_one = findViewById(R.id.bu_one);
bu_two = findViewById(R.id.bu_two);
//允許加載網頁
web_view.getSettings().setJavaScriptEnabled(true);
//加載網頁
web_view.loadUrl(“https://abnerming8.github.io/abnerming.html”);
//在本應用加載h5的頁面
bu_one.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
web_view.loadUrl(“javascript:changeColor(’#f00’)”);
}
});
//web_view.setWebViewClient(new WebViewClient());
web_view.setWebChromeClient(new WebChromeClient());
bu_two.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
web_view.loadUrl(“javascript:toast()”);
}
});
web_view.addJavascriptInterface(new adds(),“android”);

}

    class adds{
        @JavascriptInterface
        void show(){
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(Main2Activity.this, "", Toast.LENGTH_SHORT).show();
                }
            });
        }
    }

}