Java 我想在单击gridview时打开新活动
我是android新手。我已经创建了材质设计网格视图。现在我想做的是,当我点击每个网格视图时,它应该会带给我每个新的活动。当我点击Java 我想在单击gridview时打开新活动,java,android,xml,android-studio,gridview,Java,Android,Xml,Android Studio,Gridview,我是android新手。我已经创建了材质设计网格视图。现在我想做的是,当我点击每个网格视图时,它应该会带给我每个新的活动。当我点击ALPHABETS时,它将进入ListAlphabet.java。谢谢你的帮助 我的activity_main.xml是: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://sch
ALPHABETS
时,它将进入ListAlphabet.java
。谢谢你的帮助
我的activity_main.xml是:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/android_coordinator_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:id="@+id/appbar_layout"
android:layout_height="@dimen/app_bar_height"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar_android_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="@dimen/expanded_toolbar_title_margin_start"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="@+id/image_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerInside"
android:src="@drawable/code"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:id="@+id/nestedscrollview"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<GridView
android:id="@+id/grid"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:columnWidth="100dp"
android:gravity="center"
android:listSelector="#00000000"
android:numColumns="auto_fit"
android:stretchMode="columnWidth" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
CustomAndroidGridViewAdapter.java是:
package com.affinityapp.sj.alphabet;
import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.widget.GridView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
CollapsingToolbarLayout collapsingToolbarLayoutAndroid;
CoordinatorLayout rootLayoutAndroid;
GridView gridView;
Context context;
ArrayList arrayList;
public static String[] gridViewStrings = {
"ALPHABETS",
"NUMBERS",
"MONTH",
"DAYS",
"ANIMALS",
"CALL US",
};
public static int[] gridViewImages = {
R.drawable.icon_alphabet,
R.drawable.icon_number,
R.drawable.icon_calendar,
R.drawable.icon_days,
R.drawable.icon_animal,
R.drawable.icon_call
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
gridView = (GridView) findViewById(R.id.grid);
gridView.setAdapter(new CustomAndroidGridViewAdapter(this, gridViewStrings, gridViewImages));
initInstances();
}
private void initInstances() {
rootLayoutAndroid = (CoordinatorLayout) findViewById(R.id.android_coordinator_layout);
collapsingToolbarLayoutAndroid = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar_android_layout);
collapsingToolbarLayoutAndroid.setTitle("e-Learning");
}
}
package com.affinityapp.sj.alphabet;
/**
* Created by SJ on 23-01-2017.
*/
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;
/**
* Created by HP on 5/11/2016.
*/
public class CustomAndroidGridViewAdapter extends BaseAdapter {
private Context mContext;
private final String[] string;
private final int[] Imageid;
public CustomAndroidGridViewAdapter(Context c,String[] string,int[] Imageid ) {
mContext = c;
this.Imageid = Imageid;
this.string = string;
}
@Override
public int getCount() {
return string.length;
}
@Override
public Object getItem(int p) {
return null;
}
@Override
public long getItemId(int p) {
return 0;
}
@Override
public View getView(int p, View convertView, ViewGroup parent) {
View grid;
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
grid = new View(mContext);
grid = inflater.inflate(R.layout.gridview_custom_layout, null);
TextView textView = (TextView) grid.findViewById(R.id.gridview_text);
ImageView imageView = (ImageView)grid.findViewById(R.id.gridview_image);
textView.setText(string[p]);
imageView.setImageResource(Imageid[p]);
} else {
grid = (View) convertView;
}
return grid;
}
}
可能是重复的问题。。。 请在发帖前仔细研究 可以在此线程中找到答案: 编辑: 在当前活动中,您需要创建一个变量ImageButton
ImageButton myButton = (ImageButton) findViewById(R.id.the_button_you_created_on_the_layout.xml);
然后,您需要为该按钮设置一个单击侦听器
myButton.setOnClickListener(new View.OnClickListner(){
// When the button is pressed/clicked, it will run the code below
@Override
public void onClick()
// Intent is what you use to start another activity
Intent myIntent = new Intent(this, YourActivity.class);
startActivity(intent);
}
});
可能是重复的问题。。。 请在发帖前仔细研究 可以在此线程中找到答案: 编辑: 在当前活动中,您需要创建一个变量ImageButton
ImageButton myButton = (ImageButton) findViewById(R.id.the_button_you_created_on_the_layout.xml);
然后,您需要为该按钮设置一个单击侦听器
myButton.setOnClickListener(new View.OnClickListner(){
// When the button is pressed/clicked, it will run the code below
@Override
public void onClick()
// Intent is what you use to start another activity
Intent myIntent = new Intent(this, YourActivity.class);
startActivity(intent);
}
});
在活动中实现MClickListener方法:
gridview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
final Intent intent;
switch(position)
{
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;
}
startActivity(intent);
}
});
gridview.setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父视图、视图v、整型位置、长id){
最终意图;
开关(位置)
{
案例0:
意图=新意图(上下文,FirstActivity.class);
打破
案例1:
意图=新意图(上下文,SecondActivity.class);
打破
...
违约:
意图=新意图(上下文,DefaultActivity.class);
打破
}
星触觉(意向);
}
});
在活动中实施McClickListener方法:
gridview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
final Intent intent;
switch(position)
{
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;
}
startActivity(intent);
}
});
gridview.setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父视图、视图v、整型位置、长id){
最终意图;
开关(位置)
{
案例0:
意图=新意图(上下文,FirstActivity.class);
打破
案例1:
意图=新意图(上下文,SecondActivity.class);
打破
...
违约:
意图=新意图(上下文,DefaultActivity.class);
打破
}
星触觉(意向);
}
});
因此,您可以使用这种方式单击栅格视图:
public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
CollapsingToolbarLayout collapsingToolbarLayoutAndroid;
CoordinatorLayout rootLayoutAndroid;
GridView gridView;
Context context;
ArrayList arrayList;
public static String[] gridViewStrings = {
"ALPHABETS",
"NUMBERS",
"MONTH",
"DAYS",
"ANIMALS",
"CALL US",
};
public static int[] gridViewImages = {
R.drawable.icon_alphabet,
R.drawable.icon_number,
R.drawable.icon_calendar,
R.drawable.icon_days,
R.drawable.icon_animal,
R.drawable.icon_call
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
gridView = (GridView) findViewById(R.id.grid);
gridView.setAdapter(new CustomAndroidGridViewAdapter(this, gridViewStrings, gridViewImages));
initInstances();
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
// Do whatever you want, like start new Activity or display new view or display dialog box or display just message
Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
}
});
}
private void initInstances() {
rootLayoutAndroid = (CoordinatorLayout) findViewById(R.id.android_coordinator_layout);
collapsingToolbarLayoutAndroid = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar_android_layout);
collapsingToolbarLayoutAndroid.setTitle("e-Learning");
}
}
public类MainActivity扩展了AppCompatActivity{
工具栏;
折叠工具栏布局折叠工具栏布局机器人;
坐标布局机器人;
GridView;
语境;
ArrayList ArrayList;
公共静态字符串[]gridViewStrings={
“字母表”,
“数字”,
“月”,
“天”,
“动物”,
“呼叫我们”,
};
公共静态int[]gridViewImages={
R.drawable.icon_字母表,
R.drawable.icon_编号,
R.drawable.icon_日历,
R.drawable.icon_天,
R.drawable.icon_动物,
R.drawable.icon\u呼叫
};
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar=(toolbar)findviewbyd(R.id.toolbar);
设置支持操作栏(工具栏);
gridView=(gridView)findViewById(R.id.grid);
setAdapter(新的CustomAndroidGridViewAdapter(这个,gridViewStrings,gridViewImages));
initInstances();
setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父视图、视图v、整型位置、长id){
//执行您想要的任何操作,例如启动新活动或显示新视图或显示对话框或仅显示消息
Toast.makeText(MainActivity.this,“+”位置,Toast.LENGTH_SHORT.show();
}
});
}
私有void initInstances(){
rootLayoutDroid=(CoordinatorLayout)findViewById(R.id.android\u coordinator\u布局);
CollasingToolbarLayoutDroid=(CollasingToolbarLayout)findViewById(R.id.Collasing\u toolbar\u android\u布局);
折叠Droid.setTitle(“电子学习”);
}
}
希望,这将对您有所帮助。因此,您可以使用此方式单击“栅格视图”:
public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
CollapsingToolbarLayout collapsingToolbarLayoutAndroid;
CoordinatorLayout rootLayoutAndroid;
GridView gridView;
Context context;
ArrayList arrayList;
public static String[] gridViewStrings = {
"ALPHABETS",
"NUMBERS",
"MONTH",
"DAYS",
"ANIMALS",
"CALL US",
};
public static int[] gridViewImages = {
R.drawable.icon_alphabet,
R.drawable.icon_number,
R.drawable.icon_calendar,
R.drawable.icon_days,
R.drawable.icon_animal,
R.drawable.icon_call
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
gridView = (GridView) findViewById(R.id.grid);
gridView.setAdapter(new CustomAndroidGridViewAdapter(this, gridViewStrings, gridViewImages));
initInstances();
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
// Do whatever you want, like start new Activity or display new view or display dialog box or display just message
Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
}
});
}
private void initInstances() {
rootLayoutAndroid = (CoordinatorLayout) findViewById(R.id.android_coordinator_layout);
collapsingToolbarLayoutAndroid = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar_android_layout);
collapsingToolbarLayoutAndroid.setTitle("e-Learning");
}
}
public类MainActivity扩展了AppCompatActivity{
工具栏;
折叠工具栏布局折叠工具栏布局机器人;
坐标布局机器人;
GridView;
语境;
ArrayList ArrayList;
公共静态字符串[]gridViewStrings={
“字母表”,
“数字”,
“月”,
“天”,
“动物”,
“呼叫我们”,
};
公共静态int[]gridViewImages={
R.drawable.icon_字母表,
R.drawable.icon_编号,
R.drawable.icon_日历,
R.drawable.icon_天,
R.drawable.icon_动物,
R.drawable.icon\u呼叫
};
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar=(toolbar)findviewbyd(R.id.toolbar);
设置支持操作栏(工具栏);
gridView=(gridView)findViewById(R.id.grid);
setAdapter(新的CustomAndroidGridViewAdapter(这个,gridViewStrings,gridViewImages));
initInstances();
setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父视图、视图v、整型位置、长id){
//执行您想要的任何操作,例如启动新活动或显示新视图或显示对话框或仅显示消息
Toast.makeText(MainActivity.this,“+”位置,Toast.LENGTH_SHORT.show();
}
});
}
私有void initInstances(){
rootLayoutDroid=(CoordinatorLayout)findViewById(R.id.android\u coordinator\u布局);
CollasingToolbarLayoutDroid=(CollasingToolbarLayout)findViewById(R.id.Collasing\u toolbar\u android\u布局);
折叠Droid.setTitle(“电子学习”);
}
}
希望,这会对你有所帮助。谢谢@Stevey,事实上我是android新手,请你在上面解释一下好吗