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POAndroid - removing layout programmatically
 

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    <p>I have an activity that makes a layout programmatically from a Shared Preference using a for loop. The text views and buttons are enclosed in a linear layout. The user can input as many views as he wants. Now, the button will be a delete button. When pressed, I want to delete the linear layout the button and the other textviews are contained. How do I do this?</p> <p>HERE IS MY CODE:</p> <pre><code>package com.dirkjan.myschools; import android.app.Activity; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.Configuration; import android.graphics.Typeface; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; public class MainActivity extends Activity { LinearLayout subjectLeft, subjectRight; Button addSubj; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); subjectLeft = (LinearLayout) findViewById(R.id.llSubjectLeft); subjectRight = (LinearLayout) findViewById(R.id.llSubjectRight); //Load the saved subjects SharedPreferences getSubjects = getSharedPreferences("SubjectInfo_Prefs", MODE_PRIVATE); SharedPreferences.Editor editor = getSubjects.edit(); int subjectCount = getSubjects.getInt("count", 0); if (subjectCount &gt; 0 ){ for (int i = 1; i &lt;= subjectCount; i++){ //Set the linear layout for each subject LinearLayout ll = new LinearLayout(this); ll.setOrientation(LinearLayout.VERTICAL); LinearLayout.LayoutParams llParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); float scale = getResources().getDisplayMetrics().density; //SET BOTTOM MARGIN float margin = 5; //RESIZE MARGIN HERE! int margs = (int) (margin * scale + 0.5f); //SET PADDING IN DP float padding = 5; //RESIZE PADDING HERE! int pads = (int) (padding * scale +0.5f); llParams.setMargins(0,0,0,margs); //SETTING THE LINEARLAYOUT PARAMS ll.setLayoutParams(llParams); ll.setPadding(pads, pads, pads, pads); //SETTING THE BACKGROUND COLOR OF THE LINEAR LAYOUT String chosenColor = getSubjects.getString("chosenColor" + i, "BLUE"); if (chosenColor.equals("Green")){ ll.setBackgroundResource(R.color.HoloGreen); }else if (chosenColor.equals("Blue")){ ll.setBackgroundResource(R.color.HoloBlue); }else if (chosenColor.equals("Gray")){ ll.setBackgroundResource(R.color.HoloGray); }else if (chosenColor.equals("Orange")){ ll.setBackgroundResource(R.color.HoloOrange); }else { ll.setBackgroundResource(R.color.HoloYellow); } //ADDING THE LAYOUT TO THE APPROPRIATE CONTAINER (LEFT OR RIGHT) if (i % 2 == 1){ subjectLeft.addView(ll); } else { subjectRight.addView(ll); } //SETTING THE SUBJECT NAME TEXTVIEW TextView SubjectName = new TextView(this); SubjectName.setText(getSubjects.getString("subjectName" + i, "Error")); SubjectName.setLayoutParams(new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); SubjectName.setTextSize(22); SubjectName.setTypeface(Typeface.DEFAULT_BOLD); //SETTING THE SUBJECT NUMB TEXT VIEW TextView SubjectNumber = new TextView(this); SubjectNumber.setText(getSubjects.getString("subjectNumb" + i, "Error")); SubjectNumber.setLayoutParams(new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); SubjectNumber.setTextSize(16); //Creating the divider line ImageView divider = new ImageView(this); LinearLayout.LayoutParams dividerParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 2); divider.setLayoutParams(dividerParams); divider.setBackgroundResource(R.color.Black); //Add Views into the Layout ll.addView(SubjectNumber); ll.addView(SubjectName); ll.addView(divider); } } addSubj = (Button) findViewById(R.id.buttonPlusSubject); addSubj.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub Intent toAddSubj = new Intent(MainActivity.this, AddSubjectActivity.class); startActivity(toAddSubj); finish(); } }); } @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; } } </code></pre> <p>Please do take note that no id is assigned for each layout. It would help if there is a code to identify the parent of the parent of the button (The button is in a relative layout, which is in a linear layout where the linear layout must be removed by clicking the button.</p>
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    1. COpost some relevant code.
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    3. CO`The button is in a relative layout, which is in a linear layout where the linear layout must be removed by clicking the button` so you want to remove the parent layout by clicking on a child view? Then what about the child views of that parent layout?
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