How to set Min text (Mandatory) and Max text in EditText

Question

In my EditText field, I want to give some min text as mandatory and max text as the limit, is there any way to achieve that?

If one is to type text, the numeric count has to decrease. How would I do that?

<EditText
    android:id="@+id/editText1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_below="@+id/textView1"
    android:layout_marginTop="24dp"
    android:maxLength="175"
    android:ems="10" />

this is my adding activity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.home_layout);
    System.out.println(PRAYER_CATEGORY.length);
    tvPrayer = (TextView) findViewById(R.id.mystate);
    spinnerPrayers = (Spinner) findViewById(R.id.spinnerstate);

    ArrayAdapter<String> adapter_state = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, PRAYER_CATEGORY);
    adapter_state
            .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinnerPrayers.setAdapter(adapter_state);

    value=(EditText)findViewById(R.id.editText1);
    value
       .setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    if (value.getText().toString().trim()
                            .length() < 3) {

                        value.setError("Failed");
                    } else {
                        value.setError(null);
                    }
                }
                else {
                    if (value.getText().toString().trim()
                            .length() < 3) {
                        value.setError("Failed");
                    } else {
                            value.setError(null);
                    }
                }
            }
        });
        btnSpeakprayer = (ImageButton) findViewById(R.id.btnSpeakprayer);
        btn=(Button)findViewById(R.id.button1);
        pb=(ProgressBar)findViewById(R.id.progressBar1);
        pb.setVisibility(View.GONE);
        btn.setOnClickListener(this);

Answer 1

Change your code TO this:

instead of value.getText().trim().length() try using value.getText().length()<3

value.setOnFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if (hasFocus) {
            if (value.getText().toString().trim().length() < 3)
                value.setError("Failed");
            else
                value.setError(null);
        }
    }
});