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如何在viewpager中獲取textview(currentview)的值?如何在viewpager中獲取textview(currentview)的值?
問題 我的gettext TextView的,但現在當前放映的TextView其吉=下一視圖的的TextView的ttingtext
類測試
package "name";
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
/**
* Created by name on 26-Mar-16.
*/
public class Test extends Activity {
private static final String DB_NAME = "";
private static final String TABLE_NAME = "";
private SQLiteDatabase database;
private List<String> testContactName = new ArrayList<>();
public MyAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
ViewPager mViewPager = (ViewPager) findViewById(R.id.testvp);
mAdapter = new MyAdapter();
mViewPager.setAdapter(mAdapter);
mViewPager.setCurrentItem(0);
mViewPager.setOffscreenPageLimit(50);
getAllContacts();
}
public void getAllContacts() {
DatabaseHelper dbOpenHelper = new DatabaseHelper(this, DB_NAME);
database = dbOpenHelper.openDataBase();
String query = "select * from " + TABLE_NAME;
Cursor cursor = database.rawQuery(query, null);
if (cursor != null) {
cursor.moveToFirst();
for (int c = 0; c < cursor.getCount(); c++) {
String name = cursor.getString(cursor.getColumnIndex("content"));
cursor.moveToNext();
/* String count= String.valueOf(cursor.getCount());
Toast.makeText(getApplicationContext(), count , Toast.LENGTH_LONG).show();*/
testContactName.add(name);
// testContactName.notifyAll();
Log.i("Name: " + "" + "---", name);
}mAdapter.notifyDataSetChanged();
}
cursor.close();
}
private class MyAdapter extends PagerAdapter {
public MyAdapter() {
super();
}
@Override
public int getCount() {
return testContactName.size();
}
@Override
public boolean isViewFromObject(View collection, Object object) {
return object == collection;
}
@Override
public Object instantiateItem(ViewGroup collection, int position) {
LayoutInflater inflater = (LayoutInflater) collection.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.test1, null);
TextView pagenumber;
pagenumber = (TextView) view.findViewById(R.id.tv_test1);
try {
pagenumber.setText(testContactName.get(position));
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
(collection).addView(view);
return view;
}
@Override
public void destroyItem(ViewGroup collection, int position, Object view) {
(collection).removeView((View) view);
mAdapter.notifyDataSetChanged();
}
}
}
方法我使用copytoclipborad
private void setClipboard(View context,String text) {
if(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB) {
android.text.ClipboardManager clipboard = (android.text.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
clipboard.setText(text);
Toast.makeText(getApplicationContext(),text,Toast.LENGTH_LONG).show();
} else {
android.content.ClipboardManager clipboard = (android.content.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
android.content.ClipData clip = android.content.ClipData.newPlainText("Copied Text", text);
clipboard.setPrimaryClip(clip);
Toast.makeText(getApplicationContext(),"Copied To ClipBoard",Toast.LENGTH_LONG).show();
}
}
方法我稱之爲像
imgcopy.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setClipboard(mViewPager.getFocusedChild(), pagenumber.getText().toString());
}
});
的test.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.view.ViewPager
android:id="@+id/testvp"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
</RelativeLayout>
test1.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Small Text"
android:id="@+id/tv_test1"
android:layout_gravity="top|center"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
這裏獲得當前聯繫人姓名例嘗試一次https://www.dropbox.com/s/cfhvsjrb7qj4xks/SamplePro.zip?dl=0 –