我将尽可能的具体化。我创建了一个使用RecyclerAdapter的页面来在网格中显示卡片项目，并且我使用OnclickListner为每张卡片设置了一个默认活动，所以当你点击任何卡片项目时，它将带你到那个默认活动。喜欢这张图片.而我的一个看起来像这样 点击这里.我的问题是，我怎样才能在Recycler Adapter中从不同的活动中打开一张特定的卡，在我的应用程序中，我希望当我按下弹出的Go按钮时，它将切换lvl2或下一张卡来打开游戏活动。
回收器适配器的Java文件
package com.example.apptuzzle;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import androidx.cardview.widget.CardView;
import androidx.recyclerview.widget.RecyclerView;
import java.util.List;
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {
private Context mcontext;
private List<InGameContent> mData;
public RecyclerViewAdapter(Context mcontext, List<InGameContent> mData){
this.mcontext = mcontext;
this.mData = mData;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
LayoutInflater mInflater = LayoutInflater.from(mcontext);
view = mInflater.inflate(R.layout.cardview_items1,parent,false);
return new MyViewHolder(view);
}
@Override
public void onBindViewHolder(MyViewHolder holder, final int position) {
holder.Title.setText(mData.get(position).getTitle());
holder.Title.setTag(position);
holder.cardview.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int pos = (int) getItemId(position) + 1;
Intent intent = new Intent(mcontext,InGame_wrkfunction.class);
intent.putExtra("pos", pos);
//passing data to the InGame_wrkfunction.class
intent.putExtra("Answrr",mData.get(position).getAnswrr());
intent.putExtra("Thumbnail",mData.get(position).getThumbnail());
intent.putExtra("Description",mData.get(position).getDescription());
// start the activity
mcontext.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return mData.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder {
TextView Title;
CardView cardview;
public MyViewHolder(View itemView) {
super(itemView);
Title = (TextView) itemView.findViewById(R.id.LvL_id1);
cardview = (CardView) itemView.findViewById(R.id.cardview_id);
}
}
}package com.example.apptuzzle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.cardview.widget.CardView;
import androidx.recyclerview.widget.RecyclerView;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class InGame_wrkfunction extends AppCompatActivity {
private Button btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9, btn0, btndot; //Buttons Declaration
private Button btnclr, btnsubm, popup_g_button1;
private TextView txtv1, txtv2, popup_g_msg1, popup_g_des1,highscore1;
int scores = 0;
private LinearLayout Popup_layout11;
private Animation pop_animation;
private ImageView img,popup_g_img1,popup_b_img; //Question Declaration
private TextView txt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_in_game_wrkfunction);
btn0 = (Button) findViewById(R.id.Btn0);
btn1 = (Button) findViewById(R.id.Btn1);
btn2 = (Button) findViewById(R.id.Btn2);
btn3 = (Button) findViewById(R.id.Btn3);
btn4 = (Button) findViewById(R.id.Btn4);
btn5 = (Button) findViewById(R.id.Btn5);
btn6 = (Button) findViewById(R.id.Btn6);
btn7 = (Button) findViewById(R.id.Btn7);
btn8 = (Button) findViewById(R.id.Btn8);
btn9 = (Button) findViewById(R.id.Btn9);
btndot = (Button) findViewById(R.id.Btndot);
btnclr = (Button) findViewById(R.id.BtnClr);
btnsubm = (Button) findViewById(R.id.BtnSubm);
img = (ImageView) findViewById(R.id.gamethumbnail);
txtv1 = (TextView) findViewById(R.id.TxtV1);
txt = (TextView) findViewById(R.id.TxtV2);
Popup_layout11 = findViewById(R.id.Popup_layout11);
txt = (TextView) findViewById(R.id.TxtV2);
popup_g_button1 = findViewById(R.id.Popup_G_button1);
popup_g_msg1 = findViewById(R.id.Popup_G_msg1);
popup_g_des1 = findViewById(R.id.Popup_G_des1);
popup_g_img1 = findViewById(R.id.Popup_G_Img12);
highscore1 = findViewById(R.id.ScoreCounter1);
pop_animation = AnimationUtils.loadAnimation(this, R.anim.pop_up);
btn0.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "0");
}
});
btn1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "1");
}
});
btn2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "2");
}
});
btn3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "3");
}
});
btn4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "4");
}
});
btn5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "5");
}
});
btn6.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "6");
}
});
btn7.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "7");
}
});
btn8.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "8");
}
});
btn9.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + "9");
}
});
btndot.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackgroundResource(R.drawable.input_bttn_colorc);
txtv1.setText(txtv1.getText() + ".");
}
});
btnclr.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtv1.setBackground(null);
txtv1.setText(null);
}
});
// Receive data
Intent intent = getIntent();
String Description = intent.getExtras().getString("Description"); //It ll fetch data from Description()
int image = intent.getExtras().getInt("Thumbnail");
int pos = intent.getExtras().getInt("pos");
final String answrr1 = intent.getExtras().getString("Answrr");
//Setting Values
img.setImageResource(image); ////It ll replace the image that was fetched previously
txt.setText(Description);
//Load Scores
SharedPreferences myscores = this.getSharedPreferences("MyAwesomeScores", Context.MODE_PRIVATE);
scores = myscores.getInt("scores", 0); //0 tha phehele
highscore1.setText("Scores:" + scores);
btnsubm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String a = txtv1.getText().toString();
if (a.equals(answrr1)) {
scores += 30;
//Save scores
SharedPreferences myscores = getSharedPreferences("MyAwesomeScores", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = myscores.edit();
editor.putInt("scores", scores);
editor.commit();
v.setOnClickListener(null);//Remove setOnClickListener
highscore1.setText("Scores:" + scores);
Popup_layout11.setVisibility(LinearLayout.VISIBLE);
Popup_layout11.setAnimation(pop_animation);
Popup_layout11.animate();
pop_animation.start();
} else {
scores -= 30;
//Save scores
SharedPreferences myscores = getSharedPreferences("MyAwesomeScores", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = myscores.edit();
editor.putInt("scores", scores);
editor.commit();
v.setOnClickListener(null);//Remove setOnClickListener
highscore1.setText("Scores:" + scores);
popup_g_img1.setImageResource(R.drawable.sadface11);
popup_g_msg1.setText("Ohh Snap!");
popup_g_des1.setText("Don't worry Kid you just tap the button to move on to the next lesson. REMEMBER 'never waste time'.");
Popup_layout11.setVisibility(LinearLayout.VISIBLE);
Popup_layout11.setAnimation(pop_animation);
Popup_layout11.animate();
pop_animation.start();
}
}
});
}
}
/*Two Ways of Putting One Animation In an activity
* 1st One
* Anim1 = AnimationUtils.loadAnimation(this, R.anim.new_animfile1);
// pop_img1.setVisibility(View.GONE);
Btn1.setOnClickListener(new View.OnClickListener() { <-----In this type you can put animation inside On Click Listener
@Override
public void onClick(View v) {
Layout1.setVisibility(LinearLayout.VISIBLE);
Anim1.setDuration(500);
Layout1.setAnimation(Anim1);
Layout1.animate();
Anim1.start();
}
});
*
*
* 2nd One
* public class MyActivity extends Activity{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main); <-----In this type you can set another class outside the OnCreate Bundle
}
public void animate(View view){
LinearLayout dialog = (LinearLayout)findViewById(R.id.dialog);
dialog.setVisibility(LinearLayout.VISIBLE);
Animation animation = AnimationUtils.loadAnimation(this, R.anim.anim);
animation.setDuration(500);
dialog.setAnimation(animation);
dialog.animate();
animation.start();
}
}
* */我的理解是，你想在每张卡片上打开不同的活动，如果正确的话。
使用 switch 在您的onClick内打开您的活动，并在特定项目上点击
@Override
public void onClick(View v) {
final Intent intent;
switch (getAdapterPostion()){
case 0:
intent = new Intent(context, FirstActivity.class);
break;
case 1:
intent = new Intent(context, SecondActivity.class);
break;
...
default:
intent = new Intent(context, DefaultActivity.class);
break;
}
context.startActivity(intent);
}
或使用：-
@Override
public void onClick(View v) {
final Intent intent;
if (getAdapterPosition() == sth){
intent = new Intent(context, OneActivity.class);
} else if (getPosition() == sth2){
intent = new Intent(context, SecondActivity.class);
} else {
intent = new Intent(context, DifferentActivity.class);
}
context.startActivity(intent);
}