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GridViewメソッドを実装していました。すべてがうまくいって、コードごとに8つの画像のグリッドが表示されましたが、画像をクリックすると2つのボタンを持つダイアログが表示されるコードを追加しました。しかし、私は完全なコードを実行すると、アプリは、上記のキャプションとして問題を引き起こした。私はコードを含んでいます。欠けているものが見つかった場合は、以下にコメントしてください。それも貼り付けます。助けてください！残念ながら、* GridView *が停止しました
のstyles.xml：
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
のAndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MyDialog"
android:theme="@android:style/Theme.Dialog"
android:label="ShubhApplication"></activity>
</application>
MyDialog.java：
package com.shubham.gridview;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
public class MyDialog extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_dialog);
}
public void closeDialog(View v){
finish();
}
public void closeDialog2(View v){
finish();
}
}
MainActivity.java：
package com.shubham.gridview;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.support.v7.app.AppCompatActivity;
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.ImageView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {
GridView myGrid;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myGrid = (GridView) findViewById(R.id.gridView);
myGrid.setAdapter(new ShubhAdapter(this));
myGrid.setOnItemClickListener(this);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(this, MyDialog.class);
startActivity(intent);
}
}
class City
{
int imageId;
String cityName;
City(int imageId, String cityName)
{
this.imageId = imageId;
this.cityName = cityName;
}
}
class ShubhAdapter extends BaseAdapter
{
ArrayList<City> list;
Context context;
ShubhAdapter(Context context)
{
this.context = context;
list = new ArrayList<City>();
Resources res = context.getResources();
String[] tempCityNames = res.getStringArray(R.array.city_names);
int[] cityImages = { R.drawable.ahmedabad, R.drawable.bangalore, R.drawable.chennai,
R.drawable.delhi, R.drawable.hyderabad, R.drawable.kolkata,
R.drawable.lucknow, R.drawable.mumbai};
for (int i=0; i<8; i++)
{
City tempCity = new City(cityImages[i], tempCityNames[i]);
list.add(tempCity);
}
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
class ViewHolder
{
ImageView myCity;
ViewHolder(View v)
{
myCity = (ImageView) v.findViewById(R.id.imageView);
}
}
@Override
public View getView(int i, View convertView, ViewGroup parent) {
View row = convertView;
ViewHolder holder = null;
if(row == null)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.single_item, parent, false);
holder = new ViewHolder(row);
row.setTag(holder);
}
else
{
holder = (ViewHolder) row.getTag();
}
City temp = list.get(i);
holder.myCity.setImageResource(temp.imageId);
return row;
}
}
logcat：
02-27 22:35:29.721 4972-4972/com.shubham.gridview E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.shubham.gridview, PID: 4972
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.shubham.gridview/com.shubham.gridview.MyDialog}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2441)
at android.app.ActivityThread.access$900(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5345)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:343)
at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:312)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:277)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.shubham.gridview.MyDialog.onCreate(MyDialog.java:12)
at android.app.Activity.performCreate(Activity.java:5343)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2343)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2441)
at android.app.ActivityThread.access$900(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5345)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
at dalvik.system.NativeStart.main(Native Method)
02-27 22:40:29.756 4972-4972/com.shubham.gridview I/Process: Sending signal. PID: 4972 SIG: 9
logcat –
@ GabrieleMariotti Doneを追加する必要があります。 – ShubhGOYAL
あなたのAndroidManifest.xmlをtheme.xmlと共に表示してください。 – xklakoux