操纵GridView

Question

我希望我的GridView只显示16个随机字母，一个4x4图块，如果可能，我不希望字母之间有任何空格。 我还希望它将相应的文本显示为TextView以形成单词。我现在把它放在一个祝酒词中，以显示它应该如何。但它只显示图像的相应字母。我怎样才能做到这一点？我不知道该怎么办。 任何帮助将不胜感激。

Android编程新手

grid_row.xml

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="5dp" >
 
    <ImageView
        android:id="@+id/imageView"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginRight="1dp"
        android:layout_marginEnd="1dp"
        android:contentDescription="@string/hello_world"
        android:src="@drawable/ic_launcher" >
        </ImageView>

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="2dp"
        android:textSize="15sp"
        android:visibility="gone" >
        </TextView>

</LinearLayout>

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activity_main.xml

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.grid.gridgame.MainActivity" >
    
    <TextView
        android:id="@+id/wordHere"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="1234567890"/>

    <GridView
        android:id="@+id/gridViewCustom"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="1dp"
        android:columnWidth="80dp"
        android:gravity="center"
        android:horizontalSpacing="0dp"
        android:numColumns="4"
        android:stretchMode="columnWidth"
        android:verticalSpacing="0dp" />

</RelativeLayout>

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MainActivity.java

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package com.grid.gridgame;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;


public class MainActivity extends Activity {
	
	GridView gridView;
	String word;
	int rando;
	static final String[] setOne = new String[] { 
		"A", "M","C", "Qu",
		"Z", "B", "D", "A",
		"E", "I", "E", "L",
		"M", "N", "T", "P" };
	
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        gridView = (GridView) findViewById(R.id.gridViewCustom);
        
        gridView.setAdapter(new GridViewCustomAdapter(this, setOne));
        
		gridView.setOnItemClickListener(new OnItemClickListener() {
			public void onItemClick(AdapterView<?> parent, View v,
					int position, long id) {
				
				Toast.makeText(
				   getApplicationContext(),
				   ((TextView) v.findViewById(R.id.textView))
				   .getText(), Toast.LENGTH_SHORT).show();
 
			}
		});
        
        
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

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GridViewCustomAdapter

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package com.grid.gridgame;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;



public class GridViewCustomAdapter extends BaseAdapter {
	private Context context;
	private final String[] setOne;
 
	public GridViewCustomAdapter(Context context, String[] setOne) {
		this.context = context;
		this.setOne = setOne;
	}
 
	public View getView(int position, View convertView, ViewGroup parent) {
 
		LayoutInflater inflater = (LayoutInflater) context
			.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 
		View gridView;
 
		if (convertView == null) {
			 convertView = new ImageView(context);
			gridView = new View(context);
 
			// get layout from mobile.xml
			gridView = inflater.inflate(R.layout.grid_row, null);
 
			// set value into TextView
			TextView textView = (TextView) gridView
					.findViewById(R.id.textView);
			
			textView.setText(setOne[position]);
 
			// set image based on selected text
			ImageView imageView = (ImageView) gridView
					.findViewById(R.id.imageView);
			imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
	        imageView.setPadding(0, 0, 0, 0);
 
			String allletters = setOne[position];
			
			if (allletters.equals("A")) {
				imageView.setImageResource(R.drawable.a);
			} else if (allletters.equals("M")) {
				imageView.setImageResource(R.drawable.m);
			} else if (allletters.equals("C")) {
				imageView.setImageResource(R.drawable.c);
			} else if (allletters.equals("Qu")) {
				imageView.setImageResource(R.drawable.qu);
				
			} else if (allletters.equals("Z")) {
				imageView.setImageResource(R.drawable.z);
			} else if (allletters.equals("B")) {
				imageView.setImageResource(R.drawable.b);
			} else if (allletters.equals("D")) {
				imageView.setImageResource(R.drawable.d);
			} else if (allletters.equals("A")) {
				imageView.setImageResource(R.drawable.a);
				
			} else if (allletters.equals("E")) {
				imageView.setImageResource(R.drawable.e);
			} else if (allletters.equals("I")) {
				imageView.setImageResource(R.drawable.i);
			} else if (allletters.equals("E")) {
				imageView.setImageResource(R.drawable.e);
			} else if (allletters.equals("M")) {
				imageView.setImageResource(R.drawable.m);
				

			} else if (allletters.equals("M")) {
				imageView.setImageResource(R.drawable.m);
			} else if (allletters.equals("N")) {
				imageView.setImageResource(R.drawable.n);
			} else if (allletters.equals("T")) {
				imageView.setImageResource(R.drawable.t);
			} else if (allletters.equals("P")) {
				imageView.setImageResource(R.drawable.p);
			}

		} else {
			gridView = (View) convertView;
			
		}
 
		return gridView;
	}
 
	@Override
	public int getCount() {
		return setOne.length;
	}
 
	@Override
	public Object getItem(int position) {
		return null;
	}
 
	@Override
	public long getItemId(int position) {
		return 0;
	}

}

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Answer 1

如果你想存储这封信，你可以简单地创建一个字符串并存储用户推送的字母。

Example code:
String word;    // word that you want to be display

String letter = MOBILE_OS[id];     // get the corresponding letter from array from the user selected 

word.add(letter);